版本：3.1.3

Release Notes

To download latest release, please visit: http://kylin.apache.org/download/, there are source code package, binary package and installation guide avaliable.

Any problem or issue, please report to Apache Kylin JIRA project: https://issues.apache.org/jira/browse/KYLIN

or send to Apache Kylin mailing list:

User relative: user@kylin.apache.org
Development relative: dev@kylin.apache.org

v4.0.1 - 2022-01-05

New Feature

[KYLIN-5117] - Support percentile function after aggregate sub query

Bug Fix

[KYLIN-5067] - CubeBuildJob build unnecessary snapshot
[KYLIN-5071] - kylin.engine.build-base-cuboid-enabled=false and kylin.cube.cubeplanner.enabled=true are conflict on build cube step, and will throw NPE.
[KYLIN-5083] - Docker for kylin4 need to check hadoop service before start kylin
[KYLIN-5086] - When query pushdown, only measure result is empty
[KYLIN-5112] - Use 'return' instead of 'exit' in script prepare_hadoop_dependency.sh
[KYLIN-5131] - java.lang.UnsupportedOperationException: API getTableSnapshots is not supported in Kylin 4.0

Improvement

[KYLIN-4864] - Support building and testing Kylin on ARM64 architecture platform
[KYLIN-5069] - Remove find-hive-dependency.sh in Kylin 4
[KYLIN-5076] - Missing tracking URL in spark standalone mode in kylin4
[KYLIN-5082] - Exactly aggregation for percentile function
[KYLIN-5084] - Kylin4.0.0 is incompatible with HDP-3.1.5's Hive-3.1.0
[KYLIN-5090] - The error message was not printed in class JobWoker
[KYLIN-5111] - Record the time spent for each stage of query in kylin4's log

v3.1.3 - 2022-01-05

New Feature

[KYLIN-4947] - Implement spark engine for cube optimization jobs
[KYLIN-4948] - Provide an API to allow users to adjust cuboids manually
[KYLIN-4982] - Add special spark-sql conf in create intermediate flat table

Bug Fix

[KYLIN-3996] - postgresql can not to be used to construct the flat hive table in NO.1 step in building cube via datasourcedefaultSdk
[KYLIN-4964] - Receiver consumer thread should be stoped while encounting unrecoverable error
[KYLIN-4970] - Fix spark.executor.extraJavaOptions args
[KYLIN-4974] - Kylin does not handle fucntion CURRENT_TIME().
[KYLIN-4978] - NPE: submit refresh request using restful api when there is no segments
[KYLIN-4983] - The stream cube will be paused when user append a batch segment first
[KYLIN-4992] - Source row count statistics calculated in a wrong way in MergeDictionaryMapper
[KYLIN-4995] - Query exception when the query statement contains a single left parenthesis
[KYLIN-5003] - Fail to package Kylin due to legacy front end dependencies
[KYLIN-5007] - queries with limit clause may fail when string dimension is encoded in integer type
[KYLIN-5035] - Fix Merge Cuboid Statistics EOFException
[KYLIN-5036] - The hive dependency of directory type is filtered out by mistake
[KYLIN-5054] - Kylin_System project and cubes create time is wrong (1970).
[KYLIN-5097] - modify hive dict table format from textfile to orc

Improvement

[KYLIN-4554] - Validate "filter condition" on model saving
[KYLIN-4864] - Support building and testing Kylin on ARM64 architecture platform
[KYLIN-4944] - Upgrade CentOS version, Hadoop version and Spark version for Kylin Docker image
[KYLIN-4972] - Don't allow segment merge when use dict.global.SegmentAppendTrieDictBuilder to build bitmap measure
[KYLIN-5016] - Avoid potential NPE issue in RDBMS Pushdown case

Task

[KYLIN-4971] - Add new measure bitmap_map for count distinct measure in UI
[KYLIN-5053] - Update the website to link to TravisCI and Github Actions instead of Jenkins

v3.1.2 - 2021-04-26

New Feature

[KYLIN-4794] - Make it possible to force hit a cube set for sqls with cube join
[KYLIN-4938] - Remove segment by UUID
[KYLIN-4939] - Transform lookup table snapshot from segment level to cube level
[KYLIN-4940] - Implement the step of "Extract Dictionary from Global Dictionary" for spark cubing engine

Improvement

[KYLIN-4613] - add buildCubeCLi as hadoop main class and jobRestClient
[KYLIN-4636] - Make /api/admin/public_config callable for profile saml
[KYLIN-4658] - Union all issue with regarding to windows function & aggregation on
[KYLIN-4667] - Automatically set kylin.query.cache-signature-enabled to be true when memcached is enabled
[KYLIN-4702] - Missing cube-level lookup table snapshot when doing cube migration
[KYLIN-4711] - Change default value to 3 for kylin.metadata.hbase-client-retries-number
[KYLIN-4827] - SparkMergingDictionary parallelize not work
[KYLIN-4833] - use distcp to control the speed of writting hfile data to hbase cluster
[KYLIN-4836] - fix CubeMigrationCLI bug
[KYLIN-4837] - optimize CubeMigrationCLI
[KYLIN-4838] - fix KYLIN-4679 bug
[KYLIN-4854] - the official website document about system cube have some errors
[KYLIN-4862] - Build Cube use two job engine, cause there is no valid state transfer from:ERROR to:SUCCEED
[KYLIN-4863] - dependency cache script files not fully used
[KYLIN-4920] - stream lambda: hive table can be in database other than default
[KYLIN-4929] - Skip metrics update for simple queries to avoid NPE warnings
[KYLIN-4933] - Support set cache strength for dict cache
[KYLIN-4955] - fix typo in KYLIN UI when not set dictionary for count_distinct measure

Bug Fix

[KYLIN-4640] - StepInfo saved wrong key about flink or spark
[KYLIN-4771] - Query streaming cube - Thread pool of MultiThreadsResultCollector be blocked.
[KYLIN-4787] - The script sample.sh cannot automatically switch to the hive database set by the user to create sample hive tables
[KYLIN-4810] - TrieDictionary is not correctly build
[KYLIN-4819] - build cube failed when kylin.metadata.hbase-client-retries-number great than 1
[KYLIN-4826] - The value of config kylin.source.hive.warehouse-dir can not be found
[KYLIN-4841] - Spark RDD cache is invalid when building with spark engine
[KYLIN-4847] - Cuboid to HFile step failed on multiple job server env because of trying to read the metric jar file from the inactive job server's location.
[KYLIN-4855] - kylin metrics prefix bug in system-cube.sh
[KYLIN-4879] - The function of sql to remove comments is not perfect. In some cases, the sql query conditions used will be modified
[KYLIN-4882] - config["kylin.engine.spark-fact-distinct"] overwrite in the Cube-level is invalid
[KYLIN-4896] - cube metadata miss
[KYLIN-4900] - The result of derived time columns are error, when timezone is GMT-1 or GMT-N
[KYLIN-4901] - Query result use diff timezone in real-time stream
[KYLIN-4921] - stream config lost when create table with same table_name in diff project.
[KYLIN-4930] - unexpected empty search result in group/user management page
[KYLIN-4962] - Fix NPE in ShrunkDict step
[KYLIN-4979] - Fix flink shaded jar version error in download-flink.sh

v4.0.0-beta - 2021-02-07

Tag: kylin-4.0.0-beta This is a major release after 4.0.0-alpha, with 25 new features/improvements and 14 bug fixes.

New Feature

[KYLIN-4842] - Supports grouping sets function for Kylin 4
[KYLIN-4843] - Support INTERSECT_COUNT/INTERSECT_VALUE function for Kylin 4

Improvement

[KYLIN-4712] - Optimize CubeMetaIngester.java CLI
[KYLIN-4754] - The Cleanup tool cannot clean the the parquet file of the deleted cube and project
[KYLIN-4760] - Optimize TopN measure
[KYLIN-4763] - Rename ISourceAware.ID_SPARK to ISourceAware.ID_CSV
[KYLIN-4766] - After the job is discarded, the temporary file and segment file are not deleted
[KYLIN-4782] - Verify if the query hit the true cuboid in IT
[KYLIN-4790] - Automaticly copy required jars to SPARK_HOME/jars for HDI3.6
[KYLIN-4792] - Verify several attribute values of segment in the build/merge test
[KYLIN-4800] - Add canary tool for sparder-context
[KYLIN-4808] - Auto copy hive-site.xml to hadoop_conf_dir in kylin4
[KYLIN-4811] - Support cube level configuration for BuildingJob
[KYLIN-4813] - Refine spark logger for Kylin 4 build engine
[KYLIN-4814] - Support Kylin4 delopyment on EMR 5.X
[KYLIN-4815] - Support Kylin4 delopyment on EMR 6.x
[KYLIN-4817] - Refine Cube Migration Tool for Kylin4
[KYLIN-4825] - Add spark job tracking url in step details page
[KYLIN-4828] - Add more sql test cases into NBuildAndQueryTest
[KYLIN-4829] - Support to use thread-level SparkSession to execute query
[KYLIN-4844] - Add lookup table duplicate key check when building job
[KYLIN-4850] - Cube's override kylin_properties were ignored in building jobs
[KYLIN-4857] - Refactor system cube for kylin4
[KYLIN-4875] - Remove executor configurations when execute resource detect step (local mode)
[KYLIN-4877] - Use all dimension columns as sort columns when saving cuboid data

Bug Fix

[KYLIN-4737] - The precision in the returned result is different from the one by Spark SQL
[KYLIN-4738] - The order in the returned result is wrong when use window function to query in kylin
[KYLIN-4751] - Throws NPE when run test case TestTopNUDAF
[KYLIN-4761] - Update some missing values of new segment when merge segments
[KYLIN-4764] - Throws NoClassDefFoundError when run query test cases
[KYLIN-4791] - Throws exception 'UnsupportedOperationException: empty.reduceLeft' when there are cast expressions in the filters of FilePruner
[KYLIN-4793] - In some Hadoop versions, kylin calcite reported error because there is no guava14
[KYLIN-4820] - Can not auto set spark resources configurations when building cube
[KYLIN-4822] - The metrics 'Total spark scan time' of query log is negative in some cases
[KYLIN-4824] - The metric 'Total scan bytes' of 'Query Log' is always 0 when querying
[KYLIN-4853] - QueryPreparedStatementCache invalid in Spark Query Engine
[KYLIN-4858] - Support Kylin4 deployment on CDH 6.X
[KYLIN-4872] - Fix NPE when there are more than one segment if cube planner is open
[KYLIN-4874] - Fix CubeMigrationCLI bug for kylin4

Sub-task

[KYLIN-4818] - Calculate cuboid statistics in Kylin 4

v3.1.1 - 2020-10-18

Tag: kylin-3.1.1 This is a bug-fix release after 3.1.0, with 37 improvements and 21 bug fixes.

Sub-task

[KYLIN-4557] - Refactor JobService to improve code readability
[KYLIN-4558] - get all chained executable jobs through job API
[KYLIN-4559] - show cardinality and lookup snapshot job on job page
[KYLIN-4560] - support to re-run/delete cardinality and lookup snapshot job
[KYLIN-4561] - overall job number statistics in monitor page is incorrect after change the job status

Bug Fix

[KYLIN-4515] - could not send mail on ssl port
[KYLIN-4578] - Throws TableNotFoundException in step 'Convert Cuboid Data to HFile' when the value of property * 'kylin.storage.hbase.table-name-prefix' or 'kylin.storage.hbase.namespace' is lowercase.
[KYLIN-4603] - listjob return NPE
[KYLIN-4610] - update kylin.engine.livy.backtick.quote default value
[KYLIN-4617] - Check whether project/jobid exists before download diagnosis package
[KYLIN-4628] - Fail to use custom measure type when specifying cube to query
[KYLIN-4634] - Fail to specify cube in model of low priority to query
[KYLIN-4656] - Guava classpath conflict caused by kylin-jdbc 3.1.0 jar
[KYLIN-4657] - dead-loop in org.apache.kylin.engine.mr.common.MapReduceExecutable.doWork
[KYLIN-4672] - Using Real-time Lambda to refresh the data lead to result not incorrect
[KYLIN-4677] - StorageCleanupJob throw NPE
[KYLIN-4683] - Fail to consume kafka when partition number get larger
[KYLIN-4684] - Streaming Table V2创建 - TSPattern下拉选项前端bug修复
[KYLIN-4688] - Too many tmp files in HDFS tmp directory
[KYLIN-4697] - User info update logic is not correct
[KYLIN-4700] - Wrong engine type for realtime streaming
[KYLIN-4731] - Kylin query failing with 'null while executing SQL'
[KYLIN-4753] - Merging job stop working after Kylin upgrade
[KYLIN-4755] - Error while compiling generated Java code when using Kylin UDF in "case when"
[KYLIN-4756] - user/group page has duplicate information between adjacent page numbers
[KYLIN-4757] - Impossible precision for decimal datatype in kylin if the source column is numeric in postgres

Improvement

[KYLIN-4527] - Beautify the drop-down list of the cube on query page
[KYLIN-4549] - Show column cardinality in rowkeys area of advanced settings
[KYLIN-4550] - Provide advanced refresh interface inside the refresh panel
[KYLIN-4551] - Provide interfaces to transfer cube/model/project ownership
[KYLIN-4576] - Add hint about password length
[KYLIN-4581] - Add spark and flink engine test case for release test
[KYLIN-4585] - Add cube count column for project table
[KYLIN-4606] - throw olap exception when olap query and pushdown both error
[KYLIN-4608] - add deletecubefast api for delete 300 cubes fast
[KYLIN-4609] - setenv.sh add zgc config for big memory
[KYLIN-4611] - modify PATTERN_SPARK_APP_URL to Tracking URL，ignore case
[KYLIN-4612] - Support job status write to kafka
[KYLIN-4616] - The value of config kylin.source.hive.databasedir can be self detected
[KYLIN-4618] - Upgrade kylin docker image for kylin 3.1.0
[KYLIN-4619] - Make shrunken dict able to coexist with mr-hive global dict
[KYLIN-4626] - add set kylin home sh
[KYLIN-4635] - Set Kylin default log level to info
[KYLIN-4653] - Make the capacity for the LinkedBlockingQueue of BlockingReservoir configurable
[KYLIN-4665] - set flink job name shown in resource manager
[KYLIN-4678] - continue execute job when StorageCleanupJob sub step has error
[KYLIN-4679] - StorageCleanupJob clean hive table support hive table prefix
[KYLIN-4685] - return user friendly msg when stackoverflowerror
[KYLIN-4686] - clean metadata support to delete all jobs
[KYLIN-4687] - add unify clean sh to excute some clean shells
[KYLIN-4709] - Upgrade spring to 4.3.26
[KYLIN-4712] - Optimize CubeMetaIngester.java CLI
[KYLIN-4714] - Failed to revoke role access of the project
[KYLIN-4716] - Optimize the project page
[KYLIN-4752] - Refine server mode checking
[KYLIN-4770] - Move Kylin service on k8s from background to foreground

Task

[KYLIN-4526] - Enhance get the hive table rows
[KYLIN-4648] - Upgrade Spark to latest 2.3 or 2.4 version

v4.0.0-alpha - 2020-09-13

Tag: kylin-4.0.0-alpha This is a major release after 3.1.0, with 35 new features/improvements and 22 bug fixes.

New Feature

[KYLIN-4188] - Parquet as Cube storage V2
[KYLIN-4213] - The new build engine with Spark-SQL
[KYLIN-4452] - Kylin on Parquet with Docker
[KYLIN-4462] - Support Count Distinct,TopN and Percentile by kylin on Parquet
[KYLIN-4659] - Prepare a technical preview version for Parquet Storage

Improvement

[KYLIN-4449] - A running build job will still running when cancel from front end
[KYLIN-4450] - Add the feature that adjusting spark driver memory adaptively
[KYLIN-4456] - Temporary files generated by UT or Integration Tests need to be deleted
[KYLIN-4458] - FilePruner prune shards
[KYLIN-4459] - Continuous print warning log-DFSInputStream has been closed already
[KYLIN-4467] - Support TopN by kylin on Parquet
[KYLIN-4468] - Support Percentile by kylin on Parquet
[KYLIN-4474] - Support window function for Kylin on Parquet
[KYLIN-4475] - Support intersect count for Kylin on Parquet
[KYLIN-4541] - Kylin.log output error information during build job
[KYLIN-4542] - After downloading spark with bin/download-spark.sh , still need set SPARK_HOME manually .
[KYLIN-4621] - Avoid annoying log message when build cube and query
[KYLIN-4625] - Debug the code of Kylin on Parquet without hadoop environment
[KYLIN-4631] - Set the default build engine type to spark for Kylin on Parquet
[KYLIN-4644] - New tool to clean up intermediate files for Kylin 4.0
[KYLIN-4680] - Avoid annoying log messages of unit test and integration test
[KYLIN-4695] - Automatically start sparder (for query) application when start kylin instance.
[KYLIN-4699] - Delete job_tmp path after build/merge successfully
[KYLIN-4713] - Support use diff spark schedule pool for diff query
[KYLIN-4722] - Add more statistics to the query results
[KYLIN-4723] - Set the configurations about shard by to cube level
[KYLIN-4744] - Add tracking URL for build spark job on yarn
[KYLIN-4746] - Improve build performance by reducing the count of calling 'count()' function
[KYLIN-4747] - Use the first dimension column as sort column within a partition

Bug Fix

[KYLIN-4444] - Error when refresh segment
[KYLIN-4451] - ClassCastException when querying on cluster with binary package
[KYLIN-4453] - Query on refreshed cube failed with FileNotFoundException
[KYLIN-4454] - Query snapshot table failed
[KYLIN-4455] - Query will fail when set calcite.debug=true
[KYLIN-4457] - Query cube result doesn't math with spark sql
[KYLIN-4461] - When querying with measure whose return type is decimal, it will throw type cast exception
[KYLIN-4465] - Will get direct parent and ancestor cuboids with method findDirectParentCandidates
[KYLIN-4466] - Cannot unload table which is loaded from CSV source
[KYLIN-4469] - Cannot clone model
[KYLIN-4471] - Cannot query sql about left join
[KYLIN-4482] - Too many logging segment info with CubeBuildJob step
[KYLIN-4483] - Avoid to build global dictionaries with empty ColumnDesc collection
[KYLIN-4632] - No such element exception:spark.driver.cores
[KYLIN-4681] - Use KylinSession instead of SparkSession for some test cases
[KYLIN-4694] - Fix 'NoClassDefFoundError: Lcom/esotericsoftware/kryo/io/Output' when query with sparder on yarn
[KYLIN-4698] - Delete segment storage path after merging segment, deleting segment and droping cube
[KYLIN-4721] - The default source source type should be CSV not Hive with the local debug mode
[KYLIN-4732] - The cube size is wrong after disabling the cube
[KYLIN-4733] - the cube size is inconsistent with the size of all segments
[KYLIN-4734] - the duration is still increasing after discarding the job
[KYLIN-4742] - NullPointerException when auto merge segments if exist discard jobs*

v3.1.0 - 2020-07-02

Tag: kylin-3.1.0 This is a major release after 3.0.0, with 10 new features and 68 enhancements and 75 bug fixes.

New Feature

[KYLIN-3361] - Add a two layer udaf stddev_sum
[KYLIN-3758] - Flink Cube Build Engine
[KYLIN-3832] - Kylin pushdown to support postgresql
[KYLIN-4104] - Support multi jdbc pushdown runners to execute query/update
[KYLIN-4240] - Use SSO without LDAP
[KYLIN-4335] - Reuse global dictionary from other cube,global domain dict
[KYLIN-4445] - Provide a kylin on kubernetes solution
[KYLIN-4480] - Implement runtime non-equi join
[KYLIN-4485] - Create a self service interface for cube migration
[KYLIN-4491] - Query push down to Presto

Improvement

[KYLIN-2230] - can not catch kylin.sh path in linux resouce PATH setting
[KYLIN-3237] - Fix NPE
[KYLIN-3487] - Create a new measure for precise count distinct
[KYLIN-3698] - check-env.sh should print more details about checking items
[KYLIN-3844] - Add instruction about config 'kylin.metadata.hbasemapping-adapter'
[KYLIN-3956] - Segments of not only streaming cube but also batch cube need to show their status
[KYLIN-4168] - Fix sonar reported static code issues phase 2
[KYLIN-4185] - CubeStatsReader estimate wrong cube size
[KYLIN-4192] - Build UHC dictionary with spark
[KYLIN-4197] - DiagnosisInfoCLI block forever at "beeline --version"
[KYLIN-4211] - PartitionDesc support custom year、month、day partitions name
[KYLIN-4212] - Add a user profile page
[KYLIN-4225] - unclosed hive session cause too many temp file
[KYLIN-4226] - Skip current unavailable tables when updating hbase coprocessor
[KYLIN-4237] - Return error when execute 'explain plan for SQL' to get the execution plan of SQL
[KYLIN-4249] - DistributedScheduler can selectively assign task nodes according to cube extra configuration
[KYLIN-4251] - Add livy to docker
[KYLIN-4255] - Display detailed error message when using livy build error
[KYLIN-4271] - Use configurable certificate to support LDAPs authentication of Kylin
[KYLIN-4280] - SegmentPruner add the checks for "OR" filtering
[KYLIN-4281] - Precisely set the data type of tuple expression
[KYLIN-4282] - support case when in count (distinct)
[KYLIN-4287] - SegmentPruner cannot prune segment with "IN" or "OR" CompareTupleFilter
[KYLIN-4290] - Add file lock to kylin startup script to avoid starting multiple instances on one node
[KYLIN-4292] - Use HFileOutputFormat3 in all places to replace HFileOutputFormat2
[KYLIN-4293] - Backport HBASE-22887 to Kylin HFileOutputFormat3
[KYLIN-4294] - Add http api for metrics
[KYLIN-4305] - Streaming Receiver cannot limit income query request or cancel long-running query
[KYLIN-4308] - Make kylin.sh tips clearer and more explicit
[KYLIN-4311] - Fix bugs in Sonar to be compliant
[KYLIN-4312] - Specified cube when querying by API
[KYLIN-4314] - Support union in intersect_count() function
[KYLIN-4315] - Use metadata numRows in beeline client for quick row counting
[KYLIN-4317] - Update doc for KYLIN-4104
[KYLIN-4319] - in "Extract Dictionary from Global Dictionary" step, only need load global dictonaries instead of all dictonaries.
[KYLIN-4321] - Create fact distinct columns using spark by default when build engine is spark
[KYLIN-4327] - TOPN Comparator may violate its general contract
[KYLIN-4328] - Kylin should skip succeed jobs in scheduler
[KYLIN-4333] - Build Server OOM
[KYLIN-4342] - Build Global Dict by MR/Hive New Version
[KYLIN-4356] - Failed "Hive Column Cardinality calculation for table" jobs cannot be delete
[KYLIN-4358] - statement cache eviction invalidation base on time
[KYLIN-4364] - Limit varchar length to DefaultVarcharPrecison in RDBMS Source
[KYLIN-4371] - Integrate System Cube with Real-time OLAP
[KYLIN-4390] - Update tomcat to 7.0.100
[KYLIN-4394] - Upgrade dependency version for several CVEs
[KYLIN-4399] - Redirect http url is not override as https when using vip
[KYLIN-4407] - Protect query engine to provide more stable service
[KYLIN-4411] - Job Engine Improvement
[KYLIN-4412] - Show cluster name in job notification email title
[KYLIN-4419] - Make it possible to change metadata in some cases without rebuilding data
[KYLIN-4437] - Should replace deprecated "mapred.job.name"
[KYLIN-4424] - use static web server to help frontend development
[KYLIN-4441] - Add restart command to kylin.sh
[KYLIN-4477] - Usage of "TLS" is insecure
[KYLIN-4478] - Usage of "AES/ECB/PKCS5Padding" is insecure
[KYLIN-4495] - Support custom date formats for partition date column
[KYLIN-4504] - Cache usage improvement
[KYLIN-4508] - Add more unit tests to improve test coverage
[KYLIN-4510] - Automatically refresh the page after reload table
[KYLIN-4511] - Support project admin user to calculate column cardinality by web
[KYLIN-4512] - Update NOTICE file
[KYLIN-4520] - Improve StorageCleanJobHbaseUtil to cleanup HBase tables in parallel
[KYLIN-4537] - Give a friendly tips to the user when getting task list fails
[KYLIN-4543] - Remove the usage for jackson enableDefaultTyping()
[KYLIN-4571] - Always set GMT timezone for RecordEventTimeDetail
[KYLIN-4573] - Add option to indicate whether to close file for every append for Hive Producer
[KYLIN-4580] - Add 90, 360 days auto-merge thresholds for system cubes

Bug Fix

[KYLIN-2214] - NOT IN result incorrect result
[KYLIN-2971] - Fix the wrong "Realization Names" in logQuery when hit cache
[KYLIN-3409] - Write metric error when run a query.
[KYLIN-3733] - kylin can't response correct data when using "in" filter
[KYLIN-4080] - Project schema update event causes error reload NEW DataModelDesc
[KYLIN-4119] - The admin of project can't operate the action of Hybrids
[KYLIN-4120] - Failed to query select * from {lookup} if a lookup table joined in two different models
[KYLIN-4124] - Fix bug in map partition function en cuboid children is empty or null
[KYLIN-4145] - Compile failed due to incompatible version between scala and scala-maven-plugin
[KYLIN-4151] - FileSplit ClassCastException in KafkaMRInput
[KYLIN-4161] - exception in update metrics when the response is null
[KYLIN-4166] - kylin parse sql error
[KYLIN-4206] - Build kylin on EMR 5.23. The kylin version is 2.6.4. When building the cube, the hive table cannot be found
[KYLIN-4235] - Failed to load table metadata from JDBC data source
[KYLIN-4238] - kylin_streaming_model broke when changing kylin.source.hive.database-for-flat-table to non-default value
[KYLIN-4243] - read function in NoCompressedColumnReader is wrong.
[KYLIN-4245] - SqlConverter returns wrong syntax SQL when SqlParser fails for JDBC source
[KYLIN-4250] - FechRunnner should skip the job to process other jobs instead of throwing exception when the job section metadata is not found
[KYLIN-4252] - Fix the error "Cannot read property 'index' of null" in visualization page
[KYLIN-4259] - potential NPE bug reported by Findbugs
[KYLIN-4260] - When using server side PreparedStatement cache, the query result are not match on TopN scenario
[KYLIN-4263] - Inapproprate exception handling causes job stuck on running status
[KYLIN-4272] - problems of docker/build_image.sh
[KYLIN-4275] - Result of count(case when) is not correct
[KYLIN-4291] - Parallel segment building may causes WriteConflictException
[KYLIN-4295] - Instances displayed on Query Node are inconsistent with Job Node
[KYLIN-4297] - Build cube throw NPE error when partition column is not set in JDBC Data Source
[KYLIN-4298] - Issue with shrunken dictionary on S3
[KYLIN-4299] - Issue with building real-time segment cache into HBase when using S3 as working dir
[KYLIN-4300] - Create a Real-time streaming cube but not define a partition column should throw a exception
[KYLIN-4302] - Fix the bug that InputStream is not closed properly
[KYLIN-4303] - Fix the bug that HBaseAdmin is not closed properly
[KYLIN-4304] - Project list cannot be correctly sorted by "Create Time"
[KYLIN-4307] - ExponentialBackoffRetry implemented a incorrect retry policy
[KYLIN-4309] - One user's mailbox is not suffixed and other messages cannot be sent
[KYLIN-4320] - number of replicas of Cuboid files cannot be configured for Spark engine
[KYLIN-4324] - User query returns Unknown error
[KYLIN-4340] - Fix bug of get value of isSparkFactDistinctEnable for cube not correct
[KYLIN-4352] - A empty segment will cause incomplete query result in Realtime OLAP
[KYLIN-4354] - Prune segment not using given filter when using jdbc preparestatement
[KYLIN-4355] - Add validation for cube re-assignmnet(Realtime OLAP)
[KYLIN-4357] - NPE in drop/cancel unexist job
[KYLIN-4359] - Param Value should be required when creating a cube and adding a new measure
[KYLIN-4363] - Query failed with "I failed to find one of the right cookies" error
[KYLIN-4365] - RDBMS pushdown failed with with clause
[KYLIN-4377] - Project's admin cannot operate Hybrid model
[KYLIN-4383] - Kylin Integrated Issue with Amazon EMR and AWS Glue in HiveMetaStoreClientFactory.java
[KYLIN-4384] - Spark build failed in EMR when KYLIN-4224 introduced
[KYLIN-4385] - KYLIN system cube failing to update table when run on EMR with S3 as storage and EMRFS
[KYLIN-4386] - Use LinkedHashMap for a deterministic order in test
[KYLIN-4387] - Flink cubing merge step failed
[KYLIN-4393] - There are several CVEs in the project dependencies
[KYLIN-4396] - File Descriptor Leakage in MR Build Engine
[KYLIN-4397] - Use newLinkedHashMap in AssignmentUtil.java
[KYLIN-4405] - Internal exception when trying to build cube whose modal has null PartitionDesc
[KYLIN-4425] - Refactor Diagnosis Tool
[KYLIN-4426] - Refine CliCommandExecutor
[KYLIN-4432] - Duplicated queries with sytax error take unexpect long time when lazy query enabled
[KYLIN-4434] - The segment build job was not submitted successfully, but the storage of the cube has saved this segment.
[KYLIN-4438] - Null password may cause RuntimeException when starting up
[KYLIN-4464] - Query ... row_number over(order by c1) ... order by c2 ... get wrong order result
[KYLIN-4469] - Cannot clone model
[KYLIN-4470] - The user cannot log in kylin normally after being assigned to a group
[KYLIN-4472] - After running docker image, it sometimes failed to run kylin successfully.
[KYLIN-4481] - Project-level ACL lookups not working for non-admin SAML-federated users
[KYLIN-4490] - Fix minor bug which add measure on frontend
[KYLIN-4492] - Bad query leads to full gc
[KYLIN-4496] - Metric data missing
[KYLIN-4521] - The default-time-filter config is not available
[KYLIN-4523] - Loading HttpContext class twice leads to LinkageError error.
[KYLIN-4524] - system-cube.sh script can't work.
[KYLIN-4539] - Spark build failed due to com.codahale.metrics.json.MetricsModule loaded from kylin job jar
[KYLIN-4577] - Throw UnrecognizedPropertyException when server self discovery enables on cdh5.7 env
[KYLIN-4597] - Throws NPE when download diagnosis info for a job
[KYLIN-4598] - Missing dependency when run kylin.sh org.apache.kylin.*

v3.0.2 - 2020-05-19

Tag: kylin-3.0.2 This is a bugfix release after 3.0.1, with 6 enhancements and 19 bug fixes.

Improvement

[KYLIN-3628] - Query with lookup table always use latest snapshot
[KYLIN-4132] - Kylin needn't use "org.apache.directory.api.util.Strings" to import api-util.jar
[KYLIN-4388] - Refine the Dockerfile
[KYLIN-4390] - Update tomcat to 7.0.100
[KYLIN-4400] - Use beeline as hive client in system-cube.sh
[KYLIN-4437] - Should replace deprecated "mapred.job.name"

Bug Fix

[KYLIN-4119] - The admin of project can't operate the action of Hybrids
[KYLIN-4206] - Build kylin on EMR 5.23. The kylin version is 2.6.4. When building the cube, the hive table cannot be found
[KYLIN-4340] - Fix bug of get value of isSparkFactDistinctEnable for cube not correct
[KYLIN-4353] - Realtime Segment is not closed in expected duration
[KYLIN-4354] - Prune segment not using given filter when using jdbc preparestatement
[KYLIN-4370] - Spark job failing with JDBC source on 8th step with error : org.apache.kylin.engine.spark.SparkCubingByLayer. Root cause: Table or view not found: default.`kylin_intermediate table'
[KYLIN-4372] - Docker entrypoint delete file too later cause ZK started by HBase crash
[KYLIN-4379] - Calculate column cardinality cannot use kylin config overwrite cause job failed
[KYLIN-4383] - Kylin Integrated Issue with Amazon EMR and AWS Glue in HiveMetaStoreClientFactory.java
[KYLIN-4385] - KYLIN system cube failing to update table when run on EMR with S3 as storage and EMRFS
[KYLIN-4396] - File Descriptor Leakage in MR Build Engine
[KYLIN-4397] - Use newLinkedHashMap in AssignmentUtil.java
[KYLIN-4405] - Internal exception when trying to build cube whose modal has null PartitionDesc
[KYLIN-4425] - Refactor Diagnosis Tool
[KYLIN-4426] - Refine CliCommandExecutor
[KYLIN-4433] - When uhc step is turned on, Build Dimension Dictionary job cannot get correct configuration
[KYLIN-4438] - Null password may cause RuntimeException when starting up
[KYLIN-4470] - The user cannot log in kylin normally after being assigned to a group
[KYLIN-4481] - Project-level ACL lookups not working for non-admin SAML-federated users

v3.0.1 - 2020-02-20

Tag: kylin-3.0.1 This is a bugfix release after 3.0.0, with 10 enhancements and 14 bug fixes.

Improvement

[KYLIN-3956] - Segments of not only streaming cube but also batch cube need to show their status
[KYLIN-4197] - DiagnosisInfoCLI block forever at "beeline --version"
[KYLIN-4225] - unclosed hive session cause too many temp file
[KYLIN-4237] - Return error when execute 'explain plan for SQL' to get the execution plan of SQL
[KYLIN-4280] - SegmentPruner add the checks for "OR" filtering
[KYLIN-4287] - SegmentPruner cannot prune segment with "IN" or "OR" CompareTupleFilter
[KYLIN-4292] - Use HFileOutputFormat3 in all places to replace HFileOutputFormat2
[KYLIN-4327] - TOPN Comparator may violate its general contract
[KYLIN-4333] - Build Server OOM
[KYLIN-4374] - Fix security issues reported by code analysis platform LGTM

Bug Fix

[KYLIN-4080] - Project schema update event causes error reload NEW DataModelDesc
[KYLIN-4161] - exception in update metrics when the response is null
[KYLIN-4166] - kylin parse sql error
[KYLIN-4235] - Failed to load table metadata from JDBC data source
[KYLIN-4238] - kylin_streaming_model broke when changing kylin.source.hive.database-for-flat-table to non-default value
[KYLIN-4243] - read function in NoCompressedColumnReader is wrong.
[KYLIN-4250] - FechRunnner should skip the job to process other jobs instead of throwing exception when the job section metadata is not found
[KYLIN-4252] - Fix the error "Cannot read property 'index' of null" in visualization page
[KYLIN-4260] - When using server side PreparedStatement cache, the query result are not match on TopN scenario
[KYLIN-4295] - Instances displayed on Query Node are inconsistent with Job Node
[KYLIN-4297] - Build cube throw NPE error when partition column is not set in JDBC Data Source
[KYLIN-4300] - Create a Real-time streaming cube but not define a partition column should throw a exception
[KYLIN-4304] - Project list cannot be correctly sorted by "Create Time"
[KYLIN-4359] - Param Value should be required when creating a cube and adding a new measure

v3.0.0 - 2019-12-20

Tag: kylin-3.0.0 This is the GA release of Kylin's next generation after 2.x, with the new real-time OLAP feature.

New Feature

[KYLIN-4098] - Add cube auto merge api
[KYLIN-3883] - Kylin supports column count aggregation

Improvement

[KYLIN-565] - Unsupported SQL Functions
[KYLIN-1772] - Highlight segment at HBase tab page of cube admin view when the segment is not healthy.
[KYLIN-1850] - Show Kylin Version on GUI
[KYLIN-2431] - StorageCleanupJob will remove intermediate tables created by other kylin instances
[KYLIN-3756] - Support check-port-availability script for mac os x
[KYLIN-3865] - Centralize the zookeeper related info
[KYLIN-3906] - ExecutableManager is spelled as ExecutableManger
[KYLIN-3907] - Sort the cube list by create time in descending order.
[KYLIN-3917] - Add max segment merge span to cleanup intermediate data of cube building
[KYLIN-4010] - Auto adjust offset according to query server's timezone for time derived column
[KYLIN-4096] - Make cube metadata validator rules configuable
[KYLIN-4097] - Throw exception when too many dict slice eviction in AppendTrieDictionary
[KYLIN-4163] - CreateFlatHiveTableStep has not yarn app url when hive job running
[KYLIN-4167] - Refactor streaming coordinator
[KYLIN-4175] - Support secondary hbase storage config for hbase cluster migration
[KYLIN-4178] - Job scheduler support safe mode
[KYLIN-4180] - Prevent abnormal CPU usage by limiting flat filters length
[KYLIN-4187] - Building dimension dictionary using spark
[KYLIN-4193] - More user-friendly page for loading streaming tables
[KYLIN-4198] - “bin/system-cube.sh cron” will overwrite user's crontab
[KYLIN-4201] - Allow users to delete unused receivers from streaming page
[KYLIN-4208] - RT OLAP kylin.stream.node configure optimization support all receiver can have the same config
[KYLIN-4257] - Build historical data by layer in real time Lambda cube
[KYLIN-4258] - Real-time OLAP may return incorrect result for some case
[KYLIN-4273] - Make cube planner works for real-time streaming job
[KYLIN-4283] - FileNotFound error in "Garbage Collection" step should not break cube building.

Bug Fix

[KYLIN-1716] - leave executing query page action stop bug
[KYLIN-3730] - TableMetadataManager.reloadSourceTableQuietly is wrong
[KYLIN-3741] - when the sql result is empty and limit is 0 , should not have "load more" bar
[KYLIN-3842] - kylinProperties.js Unable to get the public configuration of the first line in the front end
[KYLIN-3881] - Calcite isolating expression with its condition may throw 'Division Undefined' exception
[KYLIN-3887] - Query with decimal sum measure of double complied failed after KYLIN-3703
[KYLIN-3933] - Currently replica set related operation need refresh current front-end page
[KYLIN-4135] - Real time streaming segment build task discard but can't be rebuilt
[KYLIN-4147] - User has project's admin permission but doesn't have permission to see the Storage/Planner/streaming tab in Model page
[KYLIN-4162] - After drop the build task on the monitor page, subsequent segments cannot be constructed.
[KYLIN-4165] - RT OLAP building job on "Save Cube Dictionaries" step concurrency error
[KYLIN-4169] - Too many logs while DataModelManager init, cause the first RESTful API hang for a long time
[KYLIN-4172] - Can't rename field when map streaming schema to table
[KYLIN-4176] - Filter the intermediate tables when loading table metadata from tree
[KYLIN-4183] - Clicking 'Submit' button is unresponsive, when the segment is not selected.
[KYLIN-4190] - hiveproducer write() function throw exception because hive mertics table location path prefix is different with defaut fs when hdfs uses router-based federation
[KYLIN-4194] - Throw KylinConfigCannotInitException at STEP "Extract Fact Table Distinct Columns" with spark
[KYLIN-4203] - Disable a real time cube and then enable it ,this cube may can't submit build job anymore
[KYLIN-4229] - String index out of range -1
[KYLIN-4242] - Usage instructions in 'PasswordPlaceholderConfigurer' doesn't work
[KYLIN-4244] - ClassNotFoundException while use org.apache.kylin.engine.mr.common.CubeStatsReader in bash
[KYLIN-4246] - Wrong results from real-time streaming when an optional field is used as a dimension
[KYLIN-4248] - When adding a user, the prompt message is incorrect when the user name is empty.
[KYLIN-4254] - The result exporting from Insight with CSV format is empty, when sql contains Chinese
[KYLIN-4262] - pid in GC filename inconsistent with real pid
[KYLIN-4265] - SQL tab of cube failed when filter is not empty

v3.0.0-beta - 2019-10-25

Tag: kylin-3.0.0-beta This is the beta release of Kylin's next generation after 2.x, with the new real-time OLAP feature.

New Feature

[KYLIN-4114] - Provided a self-contained docker image for Kylin
[KYLIN-4122] - Add kylin user and group manage modules

Improvement

[KYLIN-3519] - Upgrade Jacoco version to 0.8.2
[KYLIN-3628] - Query with lookup table always use latest snapshot
[KYLIN-3901] - Use multi threads to speed up the storage cleanup job
[KYLIN-4010] - Auto adjust offset according to query server's timezone for time derived column
[KYLIN-4055] - cube quey and ad-hoc query return different meta info
[KYLIN-4067] - Speed up response of kylin cube page
[KYLIN-4091] - support fast mode and simple mode for running CI
[KYLIN-4092] - Support setting seperate jvm params for kylin backgroud tools
[KYLIN-4093] - Slow query pages should be open to all users of the project
[KYLIN-4095] - Add RESOURCE_PATH_PREFIX option in ResourceTool
[KYLIN-4099] - Using no blocking RDD unpersist in spark cubing job
[KYLIN-4100] - Add overall job number statistics in monitor page
[KYLIN-4101] - set hive and spark job name when building cube
[KYLIN-4108] - Show slow query hit cube in slow query page
[KYLIN-4112] - Add hdfs keberos token delegation in Spark to support HBase and MR use different HDFSclusters
[KYLIN-4121] - Cleanup hive view intermediate tables after job be finished
[KYLIN-4127] - Remove never called classes
[KYLIN-4128] - Remove never called methods
[KYLIN-4129] - Remove useless code
[KYLIN-4130] - Coordinator->StreamingBuildJobStatusChecker thread always hold a old CubeManager
[KYLIN-4133] - support override configuration in kafka job
[KYLIN-4137] - Accelerate metadata reloading
[KYLIN-4139] - Compatible old user security xml config when user upgrate new kylin version
[KYLIN-4140] - Add the time filter for current day jobs and make default values for web configurable
[KYLIN-4141] - Build Global Dictionary in no time
[KYLIN-4149] - Allow user to edit streaming v2 table's kafka cluster address and topic name
[KYLIN-4150] - Improve docker for kylin instructions
[KYLIN-4160] - Auto redirect to host:port/kylin when user only enter host:port in broswer
[KYLIN-4167] - Refactor streaming coordinator
[KYLIN-4180] - Prevent abnormal CPU usage by limiting flat filters length

Bug Fix

[KYLIN-1856] - Kylin shows old error in job step output after resume - specifically in #4 Step Name:Build Dimension Dictionary
[KYLIN-2820] - Query can't read window function's result from subquery
[KYLIN-3121] - NPE while executing a query with two left outer joins and floating point expressionson nullable fields
[KYLIN-3845] - Kylin build error If the Kafka data source lacks selected dimensions or metrics in thekylin stream build.
[KYLIN-4034] - The table should not display in Insight page when the user has no access to the table
[KYLIN-4039] - ZookeeperDistributedLock may not release lock when unlock operation was interrupted
[KYLIN-4049] - Refresh segment job will always delete old segment storage
[KYLIN-4057] - autoMerge job can not stop
[KYLIN-4066] - No planner for not ROLE_ADMIN user on WebSite
[KYLIN-4072] - CDH 6.x find-hbase-dependency.sh return with "base-common lib not found"
[KYLIN-4085] - Segment parallel building may cause segment not found
[KYLIN-4089] - Integration test failed with JDBCMetastore
[KYLIN-4103] - Make the user string in granting operation of project is case insensitive
[KYLIN-4106] - Illegal partition for SelfDefineSortableKey when “Extract Fact Table Distinct Columns”
[KYLIN-4107] - StorageCleanupJob fails to delete Hive tables with "Argument list too long" error
[KYLIN-4111] - drop table failed with no valid privileges after KYLIN-3857
[KYLIN-4115] - Always load KafkaConsumerProperties
[KYLIN-4117] - Intersect_count() return wrong result when column type is time
[KYLIN-4120] - Failed to query select * from {lookup} if a lookup table joined in two differentmodels
[KYLIN-4126] - cube name validate code cause the wrong judge of streaming type
[KYLIN-4135] - Real time streaming segment build task discard but can't be rebuilt
[KYLIN-4143] - truncate spark executable job output
[KYLIN-4148] - Execute 'bin/kylin-port-replace-util.sh' to change port will cause the configurationof 'kylin.metadata.url' lost
[KYLIN-4153] - Failed to read big resource /dict/xxxx at "Build Dimension Dictionary" Step
[KYLIN-4154] - Metadata inconsistency between multi Kylin server caused by Broadcaster closing
[KYLIN-4155] - Cube status can not change immediately when executed disable or enable button in web
[KYLIN-4157] - When using PrepareStatement query, functions within WHERE will causeInternalErrorException
[KYLIN-4158] - Query failed for GroupBy an expression of column with limit in SQL
[KYLIN-4159] - The first step of build cube job will fail and throw "Column 'xx' in where clause isambiguous" in jdbc datasource.
[KYLIN-4162] - After drop the build task on the monitor page, subsequent segments cannot beconstructed.
[KYLIN-4173] - cube list search can not work

Test

[KYLIN-3878] - NPE to run sonar analysis

v3.0.0-alpha2 - 2019-07-31

Tag: kylin-3.0.0-alpha2 This is the alpha2 release of Kylin's next generation after 2.x, with the new real-time OLAP feature.

New Feature

[KYLIN-3843] - List kylin instances with their server mode on web

Improvement

[KYLIN-3628] - Query with lookup table always use latest snapshot
[KYLIN-3812] - optimize the child CompareTupleFilter in a CompareTupleFilter
[KYLIN-3813] - don't do push down when both of the children of CompareTupleFilter are CompareTupleFilter with column included
[KYLIN-3841] - Build Global Dict by MR/Hive
[KYLIN-3912] - Support cube level mapreduce queue config for BeelineHiveClient
[KYLIN-3918] - Add project name in cube and job pages
[KYLIN-3925] - Add reduce step for FilterRecommendCuboidDataJob & UpdateOldCuboidShardJob to avoid generating small hdfs files
[KYLIN-3932] - KafkaConfigOverride to take effect
[KYLIN-3958] - MrHive-Dict support build by livy
[KYLIN-3960] - Only update user when login in LDAP environment
[KYLIN-3997] - Add a health check job of Kylin
[KYLIN-4001] - Allow user-specified time format using real-time
[KYLIN-4012] - optimize cache in TrieDictionary/TrieDictionaryForest
[KYLIN-4013] - Only show the cubes under one model
[KYLIN-4026] - Avoid too many file append operations in HiveProducer of hive metrics reporter
[KYLIN-4028] - Speed up startup progress using cached dependency
[KYLIN-4031] - RestClient will throw exception with message contains clear-text password
[KYLIN-4033] - Can not access Kerberized Cluster with DebugTomcat
[KYLIN-4035] - Calculate column cardinality by using spark engine
[KYLIN-4041] - CONCAT NULL not working properly
[KYLIN-4062] - Too many "if else" clause in PushDownRunnerJdbcImpl#toSqlType
[KYLIN-4081] - Use absolute path instead of relative path for local segment cache
[KYLIN-4084] - Reset kylin.stream.node in kylin-port-replace-util.sh
[KYLIN-4086] - Support connect Kylin with Tableau by JDBC

Bug Fix

[KYLIN-3935] - ZKUtil acquire the wrong Zookeeper Path on windows
[KYLIN-3942] - Rea-time OLAP don't support multi-level json event
[KYLIN-3946] - No cube for AVG measure after include count column
[KYLIN-3959] - Realtime OLAP query result should not be cached
[KYLIN-3981] - Auto Merge Job failed to execute on windows
[KYLIN-4005] - Saving Cube of a aggregation Groups(40 Dimensions, Max Dimension Combination:5) may cause kylin server OOM
[KYLIN-4017] - Build engine get zk(zookeeper) lock failed when building job, it causes the whole build engine doesn't work.
[KYLIN-4027] - Kylin-jdbc module has tcp resource leak
[KYLIN-4037] - Can't Cleanup Data in Hbase's HDFS Storage When Deploy Apache Kylin with Standalone HBase Cluster
[KYLIN-4039] - ZookeeperDistributedLock may not release lock when unlock operation was interrupted
[KYLIN-4044] - CuratorScheduler may throw NPE when init service Cache
[KYLIN-4046] - Refine JDBC Source(source.default=8)
[KYLIN-4064] - parameter 'engineType' is not working when running integration test
[KYLIN-4072] - CDH 6.x find-hbase-dependency.sh return with "base-common lib not found"
[KYLIN-4074] - Exception in thread "Memcached IO over MemcachedConnection to ..." java.lang.NullPointerException

v3.0.0-alpha - 2019-04-12

Tag: kylin-3.0.0-alpha This is the alpha release of Kylin's next generation after 2.x, with the new real-time OLAP feature.

New Feature

[KYLIN-3654] - Kylin Real-time Streaming
[KYLIN-3795] - Submit Spark jobs via Apache Livy
[KYLIN-3820] - Add a curator-based scheduler

Improvement

[KYLIN-3716] - FastThreadLocal replaces ThreadLocal
[KYLIN-3744] - Add javadoc and unittest for Kylin New Streaming Solution
[KYLIN-3759] - Streaming ClassNotFoundExeception when lambda is enable in MR job
[KYLIN-3786] - Add integration test for real-time streaming
[KYLIN-3791] - Map return by Maps.transformValues is a immutable view
[KYLIN-3797] - Too many or filters may break Kylin server when flatting filter
[KYLIN-3814] - Add pause interval for job retry
[KYLIN-3821] - Expose real-time streaming data consuming lag info
[KYLIN-3834] - Add monitor for curator-based scheduler
[KYLIN-3839] - Storage clean up after refreshing or deleting a segment
[KYLIN-3864] - Provide a function to judge whether the os type is Mac os x or not
[KYLIN-3867] - Enable JDBC to use key store & trust store for https connection
[KYLIN-3901] - Use multi threads to speed up the storage cleanup job
[KYLIN-3905] - Enable shrunken dictionary default
[KYLIN-3908] - KylinClient's HttpRequest.releaseConnection is not needed in retrieveMetaData & executeKylinQuery
[KYLIN-3929] - Check satisfaction before execute cubeplanner algorithm
[KYLIN-3690] - New streaming backend implementation
[KYLIN-3691] - New streaming ui implementation
[KYLIN-3692] - New streaming ui implementation
[KYLIN-3745] - Real-time segment state changed from active to immutable is not sequently
[KYLIN-3747] - Use FQDN to register a streaming receiver instead of ip
[KYLIN-3768] - Save streaming metadata a standard kylin path in zookeeper

Bug Fix

[KYLIN-3787] - NPE throws when dimension value has null when query real-time data
[KYLIN-3789] - Stream receiver admin page issue fix
[KYLIN-3800] - Real-time streaming count distinct result wrong
[KYLIN-3817] - Duration in Cube building is a negative number
[KYLIN-3818] - After Cube disabled, auto-merge cube job still running
[KYLIN-3830] - Wrong result when 'SELECT SUM(dim1)' without set a relative metric of dim1.
[KYLIN-3866] - Whether to set mapreduce.application.classpath is determined by the user
[KYLIN-3880] - DataType is incompatible in Kylin HBase coprocessor
[KYLIN-3888] - TableNotDisabledException when running "Convert Lookup Table to HFile"
[KYLIN-3898] - Cube level properties are ineffective in the some build steps
[KYLIN-3902] - NoRealizationFoundException due to creating a wrong JoinDesc
[KYLIN-3909] - Spark cubing job failed for MappeableRunContainer is not registered
[KYLIN-3911] - Check if HBase table is enabled before diabling table in DeployCoprocessorCLI
[KYLIN-3916] - Fix cube build action issue after streaming migrate
[KYLIN-3922] - Fail to update coprocessor when run DeployCoprocessorCLI
[KYLIN-3923] - UT GeneralColumnDataTest fail

v2.6.6 - 2020-05-19

Tag: kylin-2.6.6 This is a bugfix release after 2.6.5, with 6 enhancements and 14 bug fixes.

Improvement

[KYLIN-3628] - Query with lookup table always use latest snapshot
[KYLIN-4132] - Kylin needn't use "org.apache.directory.api.util.Strings" to import api-util.jar
[KYLIN-4160] - Auto redirect to host:port/kylin when user only enter host:port in broswer
[KYLIN-4314] - Support union in intersect_count() function
[KYLIN-4390] - Update tomcat to 7.0.100
[KYLIN-4400] - Use beeline as hive client in system-cube.sh

Bug Fix

[KYLIN-4072] - CDH 6.x find-hbase-dependency.sh return with "base-common lib not found"
[KYLIN-4119] - The admin of project can't operate the action of Hybrids
[KYLIN-4206] - Build kylin on EMR 5.23. The kylin version is 2.6.4. When building the cube, the hive table cannot be found
[KYLIN-4245] - SqlConverter returns wrong syntax SQL when SqlParser fails for JDBC source
[KYLIN-4354] - Prune segment not using given filter when using jdbc preparestatement
[KYLIN-4370] - Spark job failing with JDBC source on 8th step with error : org.apache.kylin.engine.spark.SparkCubingByLayer. Root cause: Table or view not found: default.`kylin_intermediate table'
[KYLIN-4379] - Calculate column cardinality cannot use kylin config overwrite cause job failed
[KYLIN-4383] - Kylin Integrated Issue with Amazon EMR and AWS Glue in HiveMetaStoreClientFactory.java
[KYLIN-4385] - KYLIN system cube failing to update table when run on EMR with S3 as storage and EMRFS
[KYLIN-4405] - Internal exception when trying to build cube whose modal has null PartitionDesc
[KYLIN-4426] - Refine CliCommandExecutor
[KYLIN-4433] - When uhc step is turned on, Build Dimension Dictionary job cannot get correct configuration
[KYLIN-4438] - Null password may cause RuntimeException when starting up
[KYLIN-4481] - Project-level ACL lookups not working for non-admin SAML-federated users

v2.6.5 - 2020-02-20

Tag: kylin-2.6.5 This is a bugfix release after 2.6.4, with 12 enhancements and 20 bug fixes.

Improvement

[KYLIN-2230] - Can not catch kylin.sh path in linux resouce PATH setting
[KYLIN-2431] - StorageCleanupJob will remove intermediate tables created by other kylin instances
[KYLIN-4180] - Prevent abnormal CPU usage by limiting flat filters length
[KYLIN-4198] - “bin/system-cube.sh cron” will overwrite user's crontab
[KYLIN-4225] - Unclosed hive session cause too many temp file
[KYLIN-4226] - Skip current unavailable tables when updating hbase coprocessor
[KYLIN-4280] - SegmentPruner add the checks for "OR" filtering
[KYLIN-4283] - FileNotFound error in "Garbage Collection" step should not break cube building.
[KYLIN-4290] - Add file lock to kylin startup script to avoid starting multiple instances on one node
[KYLIN-4292] - Use HFileOutputFormat3 in all places to replace HFileOutputFormat2
[KYLIN-4293] - Backport HBASE-22887 to Kylin HFileOutputFormat3
[KYLIN-4374] - Fix security issues reported by code analysis platform LGTM

Bug Fix

[KYLIN-1716] - Leave executing query page action stop bug
[KYLIN-3409] - Write metric error when run a query.
[KYLIN-3741] - when the sql result is empty and limit is 0 , should not have "load more" bar
[KYLIN-4080] - Project schema update event causes error reload NEW DataModelDesc
[KYLIN-4161] - exception in update metrics when the response is null
[KYLIN-4166] - kylin parse sql error
[KYLIN-4169] - Too many logs while DataModelManager init, cause the first RESTful API hang for a long time
[KYLIN-4183] - Clicking 'Submit' button is unresponsive, when the segment is not selected.
[KYLIN-4195] - The cube size is "NaN KB" after purging one cube.
[KYLIN-4238] - kylin_streaming_model broke when changing kylin.source.hive.database-for-flat-table to non-default value
[KYLIN-4244] - ClassNotFoundException while use org.apache.kylin.engine.mr.common.CubeStatsReader in bash
[KYLIN-4250] - FechRunnner should skip the job to process other jobs instead of throwing exception when the job section metadata is not found
[KYLIN-4252] - Fix the error "Cannot read property 'index' of null" in visualization page
[KYLIN-4254] - The result exporting from Insight with CSV format is empty, when sql contains Chinese
[KYLIN-4262] - pid in GC filename inconsistent with real pid
[KYLIN-4263] - Inappropriate exception handling causes job stuck on running status
[KYLIN-4291] - Parallel segment building may causes WriteConflictException
[KYLIN-4304] - Project list cannot be correctly sorted by "Create Time"
[KYLIN-4309] - One user's mailbox is not suffixed and other messages cannot be sent
[KYLIN-4359] - Param Value should be required when creating a cube and adding a new measure

v2.6.4 - 2019-10-12

Tag: kylin-2.6.4 This is a bugfix release after 2.6.3, with 10 enhancements and 17 bug fixes.

Improvement

[KYLIN-3628] - Query with lookup table always use latest snapshot
[KYLIN-3797] - Too many or filters may break Kylin server when flatting filter
[KYLIN-4013] - Only show the cubes under one model
[KYLIN-4047] - Use push-down query when division dynamic column cube query is not supported
[KYLIN-4055] - cube quey and ad-hoc query return different meta info
[KYLIN-4093] - Slow query pages should be open to all users of the project
[KYLIN-4099] - Using no blocking RDD unpersist in spark cubing job
[KYLIN-4121] - Cleanup hive view intermediate tables after job be finished
[KYLIN-4140] - Add the time filter for current day jobs and make default values for web configurable

Bug Fix

[KYLIN-1856] - Kylin shows old error in job step output after resume - specifically in #4 Step Name: Build Dimension Dictionary
[KYLIN-4034] - The table should not display in Insight page when the user has no access to the table
[KYLIN-4037] - Can't Cleanup Data in Hbase's HDFS Storage When Deploy Apache Kylin with Standalone HBase Cluster
[KYLIN-4046] - Refine JDBC Source(source.default=8)
[KYLIN-4057] - autoMerge job can not stop
[KYLIN-4066] - No planner for not ROLE_ADMIN user on WebSite
[KYLIN-4074] - Exception in thread "Memcached IO over MemcachedConnection to ..." java.lang.NullPointerException
[KYLIN-4103] - Make the user string in granting operation of project is case insensitive
[KYLIN-4106] - Illegal partition for SelfDefineSortableKey when “Extract Fact Table Distinct Columns”
[KYLIN-4111] - drop table failed with no valid privileges after KYLIN-3857
[KYLIN-4115] - Always load KafkaConsumerProperties
[KYLIN-4131] - Broadcaster memory leak
[KYLIN-4152] - Should Disable Before Deleting HBase Table using HBaseAdmin
[KYLIN-4153] - Failed to read big resource /dict/xxxx at "Build Dimension Dictionary" Step
[KYLIN-4157] - When using PrepareStatement query, functions within WHERE will cause InternalErrorException
[KYLIN-4158] - Query failed for GroupBy an expression of column with limit in SQL
[KYLIN-4159] - The first step of build cube job will fail and throw "Column 'xx' in where clause is ambiguous" in jdbc datasource.

v2.6.3 - 2019-07-06

Tag: kylin-2.6.3 This is a bugfix release after 2.6.2, with 7 enhancements and 9 bug fixes.

Improvement

[KYLIN-4024] - Support pushdown to Presto
[KYLIN-3977] - Avoid mistaken deleting dicts by storage cleanup while building jobs are running
[KYLIN-4023] - Convert to local time for column with timestamp or date type of queries by Jdbc
[KYLIN-3893] - Cube build failed for wrong row key column description
[KYLIN-4020] - Add check for the input of fix_length rowkey encoding
[KYLIN-3998] - Make "bpus-min-benefit-ratio" configurable in cube planner phase 1
[KYLIN-4025] - Add detail exception in kylin http response

Bug Fix

[KYLIN-4015] - Fix build cube error at the "Build UHC Dictionary" step
[KYLIN-4022] - Error with message "Unrecognized column type: DECIMAL(xx,xx)" happens when do query pushdown
[KYLIN-3994] - Storage cleanup job may delete data of newly built segment because of cube cache in CubeManager
[KYLIN-2620] - Result of sum measure may by replaced by the TopN measure with the same column during query
[KYLIN-4041] - Concat function with null value does not work correctly
[KYLIN-3978] - InternalErrorException happens for queries with precise count distinct measures
[KYLIN-3845] - Streaming cube build error if the Kafka data source lacks selected dimensions or metrics
[KYLIN-3980] - Cube planner cuboid id error there are too many dimensions
[KYLIN-4049] - Storage should be cleaned after cube refreshing with config kylin.storage.clean-after-delete-operation set to true

v2.6.2 - 2019-05-19

Tag: kylin-2.6.2 This is a bugfix release after 2.6.1, with 9 enhancements and 27 bug fixes.

Improvement

[KYLIN-3905] - Enable shrunken dictionary default
[KYLIN-3571] - Do not package Spark in Kylin's binary package
[KYLIN-3866] - Add config to determine whether use local classpath for mapreduce's classpath
[KYLIN-3839] - Storage clean up after refreshing or deleting a segment
[KYLIN-3885] - Build dimension dictionary with spark costs too much time
[KYLIN-3873] - Fix inappropriate use of memory in SparkFactDistinct.java
[KYLIN-3892] - Enable set job's building priority
[KYLIN-3857] - Add parameter to change sql quoting character for sqoop
[KYLIN-3987] - Give more reducer for ultra high cardinality columns in fact distinct job

Bug Fix

[KYLIN-3835] - Source table reloading does not check table's reference by models
[KYLIN-2620] - Result of sum(measure) may not be accurate if there exists a topn measure for the same column
[KYLIN-3838] - Retry mechanism is invalid when build cube with spark
[KYLIN-3808] - Some time fields in response of rest api for listing jobs are always 0
[KYLIN-3818] - After Cube disabled, auto-merge cube job still running
[KYLIN-3830] - Wrong result for query 'SELECT SUM(dim1)' without setting a relative measure of dim1
[KYLIN-3817] - Duration in Cube building is a negative number
[KYLIN-3874] - Building step "Convert Cuboid Data to HFile" failed when HBase and MR use different HDFS clusters
[KYLIN-3880] - DataType is incompatible in Kylin HBase coprocessor
[KYLIN-3888] - TableNotDisabledException when run step "Convert Lookup Table to HFile"
[KYLIN-3884] - Loading hfile to HBase failed for temporary dir in output path
[KYLIN-3474] - Tableau 10.5 gets malformed token after connected with Kylin
[KYLIN-3895] - Failed to register new MBean when "kylin.server.query-metrics-enabled" set true
[KYLIN-3909] - Spark cubing job failed for MappeableRunContainer is not registered
[KYLIN-3898] - Cube level properties are ineffective in the some build steps
[KYLIN-3911] - Check if HBase table is enabled before disabling tables when update coprocessor
[KYLIN-3922] - Fail to update coprocessor when run DeployCoprocessorCLI
[KYLIN-3938] - Can't delete job with type "OPTIMIZE CHECKPOINT"
[KYLIN-3950] - Cube planner optimize job only use inmem algorithm
[KYLIN-3788] - Incorrect time zone conversion in parsing Kafka Streaming Data
[KYLIN-3957] - Query system cube get exception "cannot cast java.math.BigDecimal to java.lang.Double"
[KYLIN-3943] - Fix hardcode in system-cube.sh
[KYLIN-3936] - MR/Spark task will still run after the job is stopped
[KYLIN-3968] - Customized precision of sum measure doesn't work on web
[KYLIN-3965] - SQLException with message "No suitable driver found for jdbc:kylin://" when try to connect Kylin with JDBC
[KYLIN-3926] - Set source record count for cubes with topn and count distinct measures when updating statistics
[KYLIN-3934] - Sqoop import param '--null-string' result in null value become blank string in hive table

v2.6.1 - 2019-03-08

Tag: kylin-2.6.1 This is a bugfix release after 2.6.0, with 7 enhancements and 19 bug fixes.

Improvement

[KYLIN-3780] - Add built instance in Job info and email notification
[KYLIN-3794] - mergeToInClause in TupleFilterVisitor cannot work properly in some edge cases
[KYLIN-3804] - Advanced Snapshot Table save not friendly
[KYLIN-3816] - Current CI doesn't cover the case of streaming table join lookup table
[KYLIN-3819] - kylin.sh run in the foreground
[KYLIN-3822] - "bin/kylin.sh org.apache.kylin.storage.hbase.util.DeployCoprocessorCLI [file_path] [nOfThread] all" can not run successfully
[KYLIN-3826] - MergeCuboidJob only uploads necessary segment's dictionary

Bug Fix

[KYLIN-3494] - Build cube with spark reports ArrayIndexOutOfBoundsException
[KYLIN-3537] - Use Spark to build Cube on Yarn faild at Setp8 on HDP3.0
[KYLIN-3703] - Get negative value when sum on an integer column
[KYLIN-3714] - com.esotericsoftware.kryo.KryoException: java.lang.IllegalArgumentException: Class is not registered: scala.reflect.ManifestFactory$$anon$2
[KYLIN-3727] - Can not build empty segment, HadoopShellException
[KYLIN-3770] - ZipFileUtils is not compatible CubeMetaIngester
[KYLIN-3772] - CubeMetaIngester works abnormally
[KYLIN-3773] - Using Mysql instead of Hive as Data Source fails with LinkageError
[KYLIN-3776] - Float type in MySQL not properly converted to HIVE Double Type
[KYLIN-3778] - Invalid data source for each project at project level
[KYLIN-3782] - ZookeeperDistributedLock can't acquir lock on windows because wrong Path
[KYLIN-3790] - Wrong error code when command executor is interrupted
[KYLIN-3793] - org.apache.kylin.source.kafka.util.KafkaSampleProducer exit after generating 1 message
[KYLIN-3798] - SQL Server cannot list databases
[KYLIN-3799] - Wrong hive-exec jar may be found by find-hive-dependency.sh on CDH
[KYLIN-3801] - find-hive-dependency.sh fail to grep env:CLASSPATH from beeline output
[KYLIN-3815] - Unexpected behavior when joinning streaming table and hive table
[KYLIN-3828] - ArrayIndexOutOfBoundsException thrown when build a streaming cube with empty data in its first dimension
[KYLIN-3833] - Potential OOM in Spark Extract Fact Table Distinct Columns step
[KYLIN-3836] - Kylin StringUtil.join() may cause NPE if iterator is empty

v2.6.0 - 2019-01-12

Tag: kylin-2.6.0 This is a major release after 2.5, with more than 90 bug fixes and enhancements.

New Feature

[KYLIN-3552] - Data Source SDK to ingest data from different JDBC sources

Improvement

[KYLIN-1111] - Ignore unsupported hive column types when sync hive table
[KYLIN-2861] - For dictionary building of lookup table columns, reduce the table scan chance
[KYLIN-2895] - Refine query cache
[KYLIN-2932] - Simplify the thread model for in-memory cubing
[KYLIN-2972] - CacheKey from SQLRequest should ignore the case of project name
[KYLIN-3005] - getAllDictColumnsOnFact in CubeManager may include fact table's foreign key
[KYLIN-3021] - Check MapReduce job failed reason and include the diagnostics into email notification
[KYLIN-3272] - Upgrade Spark dependency to 2.3.2
[KYLIN-3326] - Better way to update migration target cluster's metadata after cube migration
[KYLIN-3430] - Global Dictionary Cleanup
[KYLIN-3445] - Upgrade checkstyle version to 8.6
[KYLIN-3496] - Make calcite extras props available in JDBC Driver
[KYLIN-3497] - Make JDBC Module more testable
[KYLIN-3499] - Double check timestamp in HBase when got "RetriesExhaustedException"
[KYLIN-3540] - Improve Mandatory Cuboid Recommendation Algorithm
[KYLIN-3544] - Refine guava cache for the recommended cuboids of cube planner
[KYLIN-3570] - Scripts to automatically build system cube
[KYLIN-3592] - Synchronized should be placed after static in declaration
[KYLIN-3597] - Fix sonar reported static code issues phase 1
[KYLIN-3600] - Utility classes should not have public constructors
[KYLIN-3602] - Enable more checkstyle rules
[KYLIN-3611] - Upgrade Tomcat to 7.0.91, 8.5.34 or later
[KYLIN-3617] - Reduce number of visiting metastore for job scheduler
[KYLIN-3628] - Query with lookup table always use latest snapshot
[KYLIN-3630] - Remove unused fields in the implementations of MeasureType
[KYLIN-3631] - Utilize Arrays#parallelSort for better performance
[KYLIN-3640] - Cube with desc broken should be able to delete
[KYLIN-3655] - Reinitialize CubeInstance when clear segments
[KYLIN-3656] - Improve HLLCounter performance
[KYLIN-3670] - Misspelled constant DEFAUL_JOB_CONF_SUFFIX
[KYLIN-3671] - Improve ResourceTool and JDBCResourceStore's performance
[KYLIN-3700] - Quote sql identities when creating flat table
[KYLIN-3707] - Add configuration for setting isolation-level for sqoop
[KYLIN-3720] - Add column family check when save/update cube desc
[KYLIN-3729] - CLUSTER BY CAST(field AS STRING) will accelerate base cuboid build with UHC global dict
[KYLIN-3737] - Refactor cache part for RDBMS
[KYLIN-3749] - Add configuration to override xml for RDBMS

Bug Fix

[KYLIN-1819] - Exception swallowed when start DefaultScheduler fail
[KYLIN-2841] - LIMIT pushdown should be applied to subquery
[KYLIN-2973] - Potential issue of not atomically update cube instance map
[KYLIN-3291] - 在构建好的cube上提交逻辑相同的sql查询结果不同
[KYLIN-3406] - When the /execute_output/ metadata file sinking to HDFS is deleted, the monitoring page does not display any tasks.
[KYLIN-3416] - Kylin bitmap null pointer exception when "group by" is an expression
[KYLIN-3439] - configuration "kylin.web.timezone" is Inconsistent between kylin-defaults.properties and KylinConfigBase.java
[KYLIN-3515] - Cubing jobs may interfere with each other if use same hive view
[KYLIN-3574] - Unclosed lookup table in DictionaryGeneratorCLI#processSegment
[KYLIN-3575] - Unclosed Connection in DriverTest
[KYLIN-3576] - IllegalArgumentException: No enum constant org.apache.kylin.rest.service.JobService.JobSearchMode.
[KYLIN-3578] - Do not synchronize on the intrinsic locks of high-level concurrency objects
[KYLIN-3579] - entrySet iterator should be used in BPUSCalculator
[KYLIN-3580] - CuboidStatsUtil#complementRowCountForMandatoryCuboids uses entrySet to add elements
[KYLIN-3581] - compareTo method should be paired with equals method
[KYLIN-3586] - Boxing/unboxing to parse a primitive is suboptimal
[KYLIN-3588] - Potentially duplicate put to RemoveBlackoutRealizationsRule#filters map
[KYLIN-3589] - Different type is used to check presence in Collection in AclPermissionUtil
[KYLIN-3590] - Missing argument to exception message String in ModelController
[KYLIN-3594] - Select with Catalog fails
[KYLIN-3603] - HBase connection isn't closed in UpdateHTableHostCLI
[KYLIN-3607] - can't build cube with spark in v2.5.0
[KYLIN-3619] - Some job won't clean up temp directory after finished
[KYLIN-3620] - "--" should not be a comment marker use between single quotes in SQL
[KYLIN-3643] - Derived column from windowSpec not working in where
[KYLIN-3653] - After kylin configured with hive data source with beeline, build failed if two jobs for creating flat table submitted at same time
[KYLIN-3662] - exception message "Cannot find project '%s'." should be formated
[KYLIN-3663] - Failed to delete project when project has more than one table
[KYLIN-3665] - Partition time column may never be added
[KYLIN-3680] - Spark cubing failed with JDBC resource
[KYLIN-3684] - [Script] find-hive-dependency.sh HIVE_LIB is not set or not resolved correctly
[KYLIN-3695] - Error while creating hive table through Kylin build cube with mysql imported tables
[KYLIN-3697] - check port availability when starts kylin instance
[KYLIN-3699] - SparkCubingByLayer. Root cause: null
[KYLIN-3710] - JDBC data source not support Spark cubing
[KYLIN-3715] - ProjectL2Cache don't be invalidated when adding override config in cube level
[KYLIN-3718] - Segments in volatile range is more than designated value
[KYLIN-3721] - Failed to get source table when write the wrong password at the first time
[KYLIN-3722] - Error Limit Push Down in Join Related Query
[KYLIN-3724] - Kylin IT test sql is unreasonable
[KYLIN-3731] - java.lang.IllegalArgumentException: Unsupported data type array<string> at
[KYLIN-3734] - UT Failed:Invalid path string "/kylin/../examples/test_metadata/job_engine/global_job_engine_lock"
[KYLIN-3740] - system_cub building bug
[KYLIN-3748] - No realization found exception thrown when a ready cube is building
[KYLIN-3752] - NullPointerException in the first cubing step：org.apache.kylin.source.hive.CreateFlatHiveTableStep.getCubeSpecificConfig(CreateFlatHiveTableStep.java:92)

Task

[KYLIN-3232] - Need document for ops tools
[KYLIN-3290] - Avoid calling Class#newInstance
[KYLIN-3559] - Use Splitter for splitting String
[KYLIN-3560] - Should not depend on personal repository
[KYLIN-3642] - Exclude conflict jar

Sub-task

[KYLIN-2894] - Change the query cache expiration strategy by signature checking
[KYLIN-2896] - Refine query exception cache
[KYLIN-2897] - Improve the query execution for a set of duplicate queries in a short period
[KYLIN-2898] - Introduce memcached as a distributed cache for queries
[KYLIN-2899] - Introduce segment level query cache

Test

[KYLIN-3365] - Add unit test for the coprocessor code, CubeVisitService

v2.5.2 - 2018-12-04

Tag: kylin-2.5.2 This is a bugfix release after 2.5.1, with 12 bug fixes and enhancement.

Improvement

[KYLIN-3669] - Add log to GTStreamAggregateScanner
[KYLIN-3676] - Update to custom calcite and remove the "atopcalcite" module
[KYLIN-3704] - Upgrade the calcite version to 1.16

Bug fix

[KYLIN-3187] - JDK APIs using the default locale, time zone or character set should be avoided
[KYLIN-3636] - Wrong "storage_type" in CubeDesc causing cube building error
[KYLIN-3666] - Mege cube step 2: Update dictionary throws IllegalStateException
[KYLIN-3672] - Performance is poor when multiple queries occur in short period
[KYLIN-3678] - CacheStateChecker may remove a cache file that under building
[KYLIN-3683] - package org.apache.commons.lang3 not exists
[KYLIN-3689] - When the startTime is equal to the endTime in build request, the segment will build all data.
[KYLIN-3693] - TopN, Count distinct incorrect in Spark engine
[KYLIN-3705] - Segment Pruner mis-functions when the source data has Chinese characters

v2.5.1 - 2018-11-06

Tag: kylin-2.5.1 This is a bugfix release after 2.5.0, with 30 bug fixes and enhancement. Check How to upgrade.

Improvement

[KYLIN-3520] - Deal with NULL values of measures for inmem cubing
[KYLIN-3526] - No check for hybrid name with special character
[KYLIN-3528] - No details page for hybrid
[KYLIN-3599] - Bulk Add Measures
[KYLIN-3611] - Upgrade Tomcat to 7.0.91, 8.5.34 or later
[KYLIN-3632] - Add configuration that can switch on/off preparedStatement cache in Kylin server
[KYLIN-3646] - Add instruction about rowkey sequence in "Advanced setting" page

Bug fix

[KYLIN-2200] - CompileException on UNION ALL query when result only contains one column
[KYLIN-3439] - configuration "kylin.web.timezone" is Inconsistent between kylin-defaults.properties and KylinConfigBase.java
[KYLIN-3527] - Hybrid couldn't save when there is only 1 cube
[KYLIN-3531] - Login failed with case-insensitive username
[KYLIN-3543] - Unclosed Job instance in CreateHTableJob#exportHBaseConfiguration
[KYLIN-3546] - Kylin doesn't persist FK to intermediate table if FK is not a dimension
[KYLIN-3556] - Interned string should not be used as lock object
[KYLIN-3562] - TS conflict when kylin update metadata in HBase
[KYLIN-3565] - User login error message is inaccurate
[KYLIN-3567] - Change scala dependency to provided
[KYLIN-3582] - String comparison should not use == in RecordEvent
[KYLIN-3595] - Beeline does not retrieve CLASSPATH and hangs
[KYLIN-3604] - Can't build cube with spark in HBase standalone mode
[KYLIN-3613] - Kylin with Standalone HBase Cluster (enabled kerberos) could not find the main cluster namespace at "Create HTable" step
[KYLIN-3629] - NullPointException throws when use preparedStatement cache in some case
[KYLIN-3633] - Dead lock may happen in building global dictionary
[KYLIN-3634] - When filter column has null value may cause incorrect query result
[KYLIN-3635] - Percentile calculation on Spark engine is wrong
[KYLIN-3644] - NumberFormatExcetion on null values when building cube with Spark
[KYLIN-3645] - Kylin does not clean table metadata when drop project(Kafka Source)
[KYLIN-3647] - Fix inconsistent states of job and its sub-task
[KYLIN-3649] - segment region count and size are not correct when using mysql as Kylin metadata storage
[KYLIN-3651] - JDBCResourceStore doesn't list all resources

v2.5.0 - 2018-09-16

Tag: kylin-2.5.0 This is a major release after 2.4, with 96 bug fixes and enhancement. Check How to upgrade.

New Feature

[KYLIN-2565] - Support Hadoop 3.0
[KYLIN-3488] - Support MySQL as Kylin metadata storage
[KYLIN-3366] - Configure automatic enabling of cubes after a build process

Improvement

[KYLIN-2998] - Kill spark app when cube job was discarded
[KYLIN-3033] - Support HBase 2.0
[KYLIN-3071] - Add config to reuse dict to reduce dict size
[KYLIN-3094] - Upgrade zookeeper to 3.4.12
[KYLIN-3146] - Response code and exception should be standardised for cube checking
[KYLIN-3186] - Add support for partitioning columns that combine date and time (e.g. YYYYMMDDHHMISS)
[KYLIN-3250] - Upgrade jetty version to 9.3.22
[KYLIN-3259] - When a cube is deleted, remove it from the hybrid cube definition
[KYLIN-3321] - Set MALLOC_ARENA_MAX in script
[KYLIN-3355] - Improve the HTTP return code of Rest API
[KYLIN-3370] - Enhance segment pruning
[KYLIN-3384] - Allow setting REPLICATION_SCOPE on newly created tables
[KYLIN-3414] - Optimize the cleanup of project L2 cache
[KYLIN-3418] - User interface for hybrid model
[KYLIN-3419] - Upgrade to Java 8
[KYLIN-3421] - Improve job scheduler fetch performance
[KYLIN-3423] - Performance improvement in FactDistinctColumnsMapper
[KYLIN-3424] - Missing invoke addCubingGarbageCollectionSteps in the cleanup step for HBaseMROutput2Transition
[KYLIN-3427] - Convert to HFile in Spark
[KYLIN-3434] - Support prepare statement in Kylin server side
[KYLIN-3441] - Merge cube segments in Spark
[KYLIN-3442] - Fact distinct columns in Spark
[KYLIN-3449] - Should allow deleting a segment in NEW status
[KYLIN-3452] - Optimize spark cubing memory footprint
[KYLIN-3453] - Improve cube size estimation for TOPN, COUNT DISTINCT
[KYLIN-3454] - Fix potential thread-safe problem in ResourceTool
[KYLIN-3457] - Distribute by multiple columns if not set shard-by column
[KYLIN-3463] - Improve optimize job by avoiding creating empty output files on HDFS
[KYLIN-3464] - Less user confirmation
[KYLIN-3470] - Add cache for execute and execute_output to speed up list job api
[KYLIN-3471] - Merge dictionary and statistics on Yarn
[KYLIN-3472] - TopN merge in Spark engine performance tunning
[KYLIN-3475] - Make calcite case handling and quoting method more configurable.
[KYLIN-3478] - Enhance backwards compatibility
[KYLIN-3479] - Model can save when kafka partition date column not select
[KYLIN-3480] - Change the conformance of calcite from default to lenient
[KYLIN-3481] - Kylin Jdbc: Shaded dependencies should not be transitive
[KYLIN-3485] - Make unloading table more flexible
[KYLIN-3489] - Improve the efficiency of enumerating dictionary values
[KYLIN-3490] - For single column queries, only dictionaries are enough
[KYLIN-3491] - Improve the cube building process when using global dictionary
[KYLIN-3503] - Missing java.util.logging.config.file when starting kylin instance
[KYLIN-3507] - Query NPE when project is not found
[KYLIN-3509] - Allocate more memory for "Merge dictionary on yarn" step
[KYLIN-3510] - Correct sqoopHome at 'createSqoopToFlatHiveStep'
[KYLIN-3521] - Enable Cube Planner by default
[KYLIN-3539] - Hybrid segment overlap not cover some case
[KYLIN-3317] - Replace UUID.randomUUID with deterministic PRNG
[KYLIN-3436] - Refactor code related to loading hive/stream table

Bug fix

[KYLIN-2522] - Compilation fails with Java 8 when upgrading to hbase 1.2.5
[KYLIN-2662] - NegativeArraySizeException in "Extract Fact Table Distinct Columns"
[KYLIN-2933] - Fix compilation against the Kafka 1.0.0 release
[KYLIN-3025] - kylin odbc error : fn CONVERT for bigint type in tableau 10.4
[KYLIN-3255] - Cannot save cube
[KYLIN-3258] - No check for duplicate cube name when creating a hybrid cube
[KYLIN-3379] - timestampadd bug fix and add test
[KYLIN-3382] - YARN job link wasn't displayed when job is running
[KYLIN-3385] - Error when have sum(1) measure
[KYLIN-3390] - QueryInterceptorUtil.queryInterceptors is not thread safe
[KYLIN-3391] - BadQueryDetector only detect first query
[KYLIN-3399] - Leaked lookup table in DictionaryGeneratorCLI#processSegment
[KYLIN-3403] - Querying sample cube with filter "KYLIN_CAL_DT.WEEK_BEG_DT >= CAST('2001-09-09' AS DATE)" returns unexpected empty result set
[KYLIN-3428] - java.lang.OutOfMemoryError: Requested array size exceeds VM limit
[KYLIN-3438] - mapreduce.job.queuename does not work at 'Convert Cuboid Data to HFile' Step
[KYLIN-3446] - Convert to HFile in spark reports ZK connection refused
[KYLIN-3451] - Cloned cube doesn't have Mandatory Cuboids copied
[KYLIN-3456] - Cube level's snapshot config does not work
[KYLIN-3458] - Enabling config kylin.job.retry will cause log info incomplete
[KYLIN-3461] - "metastore.sh refresh-cube-signature" not updating cube signature as expected
[KYLIN-3462] - "dfs.replication=2" and compression not work in Spark cube engine
[KYLIN-3476] - Fix TupleExpression verification when parsing sql
[KYLIN-3477] - Spark job size not available when deployMode is cluster
[KYLIN-3482] - Unclosed SetAndUnsetThreadLocalConfig in SparkCubingByLayer
[KYLIN-3483] - Imprecise comparison between double and integer division
[KYLIN-3492] - Wrong constant value in KylinConfigBase.getDefaultVarcharPrecision
[KYLIN-3500] - kylin 2.4 use jdbc datasource :Unknown column 'A.A.CRT_DATE' in 'where clause'
[KYLIN-3505] - DataType.getType wrong usage of cache
[KYLIN-3516] - Job status not updated after job discarded
[KYLIN-3517] - Couldn't update coprocessor on HBase 2.0
[KYLIN-3518] - Coprocessor reports NPE when execute a query on HBase 2.0
[KYLIN-3522] - PrepareStatement cache issue
[KYLIN-3525] - kylin.source.hive.keep-flat-table=true will delete data
[KYLIN-3529] - Prompt not friendly
[KYLIN-3533] - Can not save hybrid
[KYLIN-3534] - Failed at update cube info step
[KYLIN-3535] - "kylin-port-replace-util.sh" changed port but not uncomment it
[KYLIN-3536] - PrepareStatement cache issue when there are new segments built
[KYLIN-3538] - Automatic cube enabled functionality is not merged into 2.4.0
[KYLIN-3547] - DimensionRangeInfo: Unsupported data type boolean
[KYLIN-3550] - "kylin.source.hive.flat-table-field-delimiter" has extra ""
[KYLIN-3551] - Spark job failed with "FileNotFoundException"
[KYLIN-3553] - Upgrade Tomcat to 7.0.90.
[KYLIN-3554] - Spark job failed but Yarn shows SUCCEED, causing Kylin move to next step
[KYLIN-3557] - PreparedStatement should be closed in JDBCResourceDAO#checkTableExists

v2.4.1 - 2018-09-09

Tag: kylin-2.4.1 This is a bug fix release after 2.4.0, with 22 bug fixes and enhancement. Check How to upgrade.

Improvement

[KYLIN-3421] - Improve job scheduler fetch performance
[KYLIN-3424] - Missing invoke addCubingGarbageCollectionSteps in the cleanup step for HBaseMROutput2Transition
[KYLIN-3422] - Support multi-path of domain for kylin connection
[KYLIN-3463] - Improve optimize job by avoiding creating empty output files on HDFS
[KYLIN-3503] - Missing java.util.logging.config.file when starting kylin instance
[KYLIN-3507] - Query NPE when project is not found

Bug fix

[KYLIN-2662] - NegativeArraySizeException in "Extract Fact Table Distinct Columns
[KYLIN-3025] - kylin odbc error : fn CONVERT for bigint type in tableau 10.4
[KYLIN-3255] - Cannot save cube
[KYLIN-3347] - QueryService Exception when using calcite function ex : fn CURRENT_TIMESTAMP(0)
[KYLIN-3391] - BadQueryDetector only detect first query
[KYLIN-3403] - Querying sample cube with filter "KYLIN_CAL_DT.WEEK_BEG_DT >= CAST('2001-09-09' AS DATE)" returns unexpected empty result set
[KYLIN-3428] - java.lang.OutOfMemoryError: Requested array size exceeds VM limit
[KYLIN-3438] - mapreduce.job.queuename does not work at 'Convert Cuboid Data to HFile' Step
[KYLIN-3451] - Cloned cube doesn't have Mandatory Cuboids copied
[KYLIN-3456] - Cube level's snapshot config does not work
[KYLIN-3460] - fn CURRENT_DATE() parse error
[KYLIN-3461] - "metastore.sh refresh-cube-signature" not updating cube signature as expected
[KYLIN-3476] - Fix TupleExpression verification when parsing sql
[KYLIN-3492] - Wrong constant value in KylinConfigBase.getDefaultVarcharPrecision
[KYLIN-3500] - kylin 2.4 use jdbc datasource :Unknown column 'A.A.CRT_DATE' in 'where clause'
[KYLIN-3505] - DataType.getType wrong usage of cache

v2.4.0 - 2018-06-23

Tag: kylin-2.4.0 This is a major release after 2.3.x, with 8 new features and more than 30 bug fixes bug fixes and enhancement. Check How to upgrade.

New Feature

[KYLIN-2484] - Spark engine to support source from Kafka
[KYLIN-3221] - Allow externalizing lookup table snapshot
[KYLIN-3283] - Support values RelNode
[KYLIN-3315] - Allow each project to set its own source at project level
[KYLIN-3343] - Support JDBC source on UI
[KYLIN-3358] - Support sum(case when...), sum(2*price+1), count(column) and more
[KYLIN-3378] - Support Kafka table join with Hive tables

Improvement

[KYLIN-3137] - Spark cubing without hive-site.xml
[KYLIN-3174] - Default scheduler enhancement
[KYLIN-3220] - Add manager for project ACL.
[KYLIN-3234] - ResourceStore should add a API that can recursively list path.
[KYLIN-3246] - Add manager for user.
[KYLIN-3248] - Add batch grant API for project ACL.
[KYLIN-3251] - Add a hook that can customer made test_case_data
[KYLIN-3266] - Improve CI coverage
[KYLIN-3267] - add override MR config at project/cube level only for mem-hungry build steps
[KYLIN-3271] - Optimize sub-path check of ResourceTool
[KYLIN-3275] - Add unit test for StorageCleanupJob
[KYLIN-3279] - Util Class for encryption and decryption
[KYLIN-3284] - Refactor all OLAPRel computeSelfCost
[KYLIN-3289] - Refactor the storage garbage clean up code
[KYLIN-3294] - Remove HBaseMROutput.java, RangeKeyDistributionJob.java and other sunset classes
[KYLIN-3314] - Refactor code for cube planner algorithm
[KYLIN-3320] - CubeStatsReader cannot print stats properly for some cube
[KYLIN-3328] - Upgrade the metadata of sample cube to latest
[KYLIN-3331] - Kylin start script hangs during retrieving hive dependencys
[KYLIN-3345] - Use Apache Parent POM 19
[KYLIN-3354] - KeywordDefaultDirtyHack cannot handle double-quoted defaultCatalog identifier
[KYLIN-3369] - Reduce the data size sink from Kafka topic to HDFS
[KYLIN-3380] - Allow to configure sqoop for jdbc source with a kylin_sqoop_conf.xml like hive
[KYLIN-3386] - TopN measure validate code refactor to make it more clear

Bug fix

[KYLIN-1768] - NDCuboidMapper throws ArrayIndexOutOfBoundsException when dimension is fixed length encoded to more than 256 bytes
[KYLIN-1948] - IntegerDimEnc, does not encode -1 correctly
[KYLIN-3115] - Incompatible RowKeySplitter initialize between build and merge job
[KYLIN-3122] - Partition elimination algorithm seems to be inefficient and have serious issues with handling date/time ranges, can lead to very slow queries and OOM/Java heap dump conditions
[KYLIN-3149] - Calcite's ReduceExpressionsRule.PROJECT_INSTANCE not working as expected
[KYLIN-3168] - CubeHFileJob should use currentHBaseConfiguration but not new create hbase configuration
[KYLIN-3257] - Useless call in FuzzyValueCombination
[KYLIN-3277] - Override hiveconf settings when connecting to hive using jdbc
[KYLIN-3281] - OLAPProjectRule can't normal working with projectRel[input=sortRel]
[KYLIN-3292] - The setting config dialog will cause NPE in Kylin server
[KYLIN-3293] - FixedLenHexDimEnc return a wrong code length leads to cut bytes error.
[KYLIN-3295] - Unused method SQLDigestUtil#appendTsFilterToExecute
[KYLIN-3296] - When merge cube，get java.lang.ArrayIndexOutOfBoundsException at java.lang.System.arraycopy(Native Method)
[KYLIN-3311] - Segments overlap error (refactor write conflict exception)
[KYLIN-3324] - NegativeArraySizeException in CreateDictionaryJob$2.getDictionary()
[KYLIN-3336] - java.lang.NoSuchMethodException: org.apache.kylin.tool.HBaseUsageExtractor.execute([Ljava.lang.String;)
[KYLIN-3348] - "missing LastBuildJobID" error when building new cube segment
[KYLIN-3352] - Segment pruning bug, e.g. date_col > "max_date+1"
[KYLIN-3363] - Wrong partition condition appended in JDBC Source
[KYLIN-3367] - Add the compatibility for new version of hbase
[KYLIN-3368] - "/kylin/kylin_metadata/metadata/" has many garbage for spark cubing
[KYLIN-3388] - Data may become not correct if mappers fail during the redistribute step, "distribute by rand()"
[KYLIN-3396] - NPE throws when materialize lookup table to HBase
[KYLIN-3398] - Inaccurate arithmetic operation in LookupTableToHFileJob#calculateShardNum
[KYLIN-3400] - WipeCache and createCubeDesc causes deadlock
[KYLIN-3401] - The current using zip compress tool has an arbitrary file write vulnerability
[KYLIN-3404] - Last optimized time detail was not showing after cube optimization

Task

[KYLIN-3327] - Upgrade surefire version to 2.21.0
[KYLIN-3372] - Upgrade jackson-databind version due to security concerns
[KYLIN-3415] - Remove "external" module

Sub-task

[KYLIN-3359] - Support sum(expression) if possible
[KYLIN-3362] - Support dynamic dimension push down
[KYLIN-3364] - Make the behavior of BigDecimalSumAggregator consistent with hive
[KYLIN-3373] - Some improvements for lookup table - UI part change
[KYLIN-3374] - Some improvements for lookup table - metadata change
[KYLIN-3375] - Some improvements for lookup table - build change
[KYLIN-3376] - Some improvements for lookup table - query change
[KYLIN-3377] - Some improvements for lookup table - snapshot management

v2.3.2 - 2018-07-08

Tag: kylin-2.3.2 This is a bug fix release after 2.3.1, with 12 bug fixes and enhancement. Check How to upgrade.

Improvement

[KYLIN-3345] - Use Apache Parent POM 19
[KYLIN-3372] - Upgrade jackson-databind version due to security concerns
[KYLIN-3415] - Remove "external" module

Bug fix

[KYLIN-3115] - Incompatible RowKeySplitter initialize between build and merge job
[KYLIN-3336] - java.lang.NoSuchMethodException: org.apache.kylin.tool.HBaseUsageExtractor.execute([Ljava.lang.String;)
[KYLIN-3348] - "missing LastBuildJobID" error when building new cube segment
[KYLIN-3352] - Segment pruning bug, e.g. date_col > "max_date+1"
[KYLIN-3363] - Wrong partition condition appended in JDBC Source
[KYLIN-3388] - Data may become not correct if mappers fail during the redistribute step, "distribute by rand()"
[KYLIN-3400] - WipeCache and createCubeDesc causes deadlock
[KYLIN-3401] - The current using zip compress tool has an arbitrary file write vulnerability
[KYLIN-3404] - Last optimized time detail was not showing after cube optimization

v2.3.1 - 2018-03-28

Tag: kylin-2.3.1 This is a bug fix release after 2.3.0, with 12 bug fixes and enhancement. Check How to upgrade.

Improvement

[KYLIN-3233] - CacheController can not handle if cacheKey has "/"
[KYLIN-3278] - Kylin should not distribute hive table by random at Step1
[KYLIN-3300] - Upgrade jackson-databind to 2.6.7.1 with security issue fixed
[KYLIN-3301] - Upgrade opensaml to 2.6.6 with security issue fixed

Bug fix

[KYLIN-3270] - Fix the blocking issue in Cube optimizing job
[KYLIN-3276] - Fix the query cache bug with dynamic parameter
[KYLIN-3288] - "Sqoop To Flat Hive Table" step should specify "mapreduce.queue.name"
[KYLIN-3306] - Fix the rarely happened unit test exception of generic algorithm
[KYLIN-3287] - When a shard by column is in dict encoding, dict building error.
[KYLIN-3280] - The delete button should not be enabled without any segment in cube segment delete confirm dialog
[KYLIN-3119] - A few bugs in the function 'massageSql' of 'QueryUtil.java'
[KYLIN-3236] - The function 'reGenerateAdvancedDict()' has an error logical judgment, which will cause an exception when you edit the cube.

v2.3.0 - 2018-03-04

Tag: kylin-2.3.0 This is a major release after 2.2, with more than 250 bug fixes and enhancement. Check How to upgrade.

New Feature

[KYLIN-3125] - Support SparkSql in Cube building step "Create Intermediate Flat Hive Table"
[KYLIN-3052] - Support Redshift as data source
[KYLIN-3044] - Support SQL Server as data source
[KYLIN-2999] - One click migrate cube in web
[KYLIN-2960] - Support user/group and role authentication for LDAP
[KYLIN-2902] - Introduce project-level concurrent query number control
[KYLIN-2776] - New metric framework based on dropwizard
[KYLIN-2727] - Introduce cube planner able to select cost-effective cuboids to be built by cost-based algorithms
[KYLIN-2726] - Introduce a dashboard for showing kylin service related metrics, like query count, query latency, job count, etc
[KYLIN-1892] - Support volatile range for segments auto merge

Improvement

[KYLIN-3265] - Add "jobSearchMode" as a condition to "/kylin/api/jobs" API
[KYLIN-3245] - Searching cube support fuzzy search
[KYLIN-3243] - Optimize the code and keep the code consistent in the access.html
[KYLIN-3239] - Refactor the ACL code about "checkPermission" and "hasPermission"
[KYLIN-3215] - Remove 'drop' option when job status is stopped and error
[KYLIN-3214] - Initialize ExternalAclProvider when starting kylin
[KYLIN-3209] - Optimize job partial statistics path be consistent with existing one
[KYLIN-3196] - Replace StringUtils.containsOnly with Regex
[KYLIN-3194] - Tolerate broken job metadata caused by executable ClassNotFoundException
[KYLIN-3193] - No model clone across projects
[KYLIN-3182] - Update Kylin help menu links
[KYLIN-3181] - The submit button status of refreshing cube is not suitable when the start time is equal or more than the end time.
[KYLIN-3162] - Fix alignment problem of 'Save Query' pop-up box
[KYLIN-3159] - Remove unnecessary cube access request
[KYLIN-3158] - Metadata broadcast should only retry failed node
[KYLIN-3157] - Enhance query timeout to entire query life cycle
[KYLIN-3151] - Enable 'Query History' to show items filtered by different projects
[KYLIN-3150] - Support different compression in PercentileCounter measure
[KYLIN-3145] - Support Kafka JSON message whose property name includes "_"
[KYLIN-3144] - Adopt Collections.emptyList() for empty list values
[KYLIN-3129] - Fix the joda library conflicts during Kylin start on EMR 5.8+
[KYLIN-3128] - Configs for allowing export query results for admin/nonadmin user
[KYLIN-3127] - In the Insights tab, results section, make the list of Cubes hit by the query either scrollable or multiline
[KYLIN-3124] - Support horizontal scroll bar in 'Insight'
[KYLIN-3117] - Hide project config in cube level
[KYLIN-3114] - Enable kylin.web.query-timeout for web query request
[KYLIN-3113] - Editing Measure supports fuzzy search in web
[KYLIN-3108] - Change IT embedded Kafka broker path to /kylin/streaming_config/UUID
[KYLIN-3105] - Interface Scheduler's stop method should be removed
[KYLIN-3100] - Building empty partitioned cube with rest api supports partition_start_date
[KYLIN-3098] - Enable kylin.query.max-return-rows to limit the maximum row count returned to user
[KYLIN-3092] - Synchronize read/write operations on Managers
[KYLIN-3090] - Refactor to consolidate all caches and managers under KylinConfig
[KYLIN-3088] - Spell Error of isCubeMatch
[KYLIN-3086] - Ignore the intermediate tables when loading Hive source tables
[KYLIN-3079] - Use Docker for document build environment
[KYLIN-3078] - Optimize the estimated size of percentile measure
[KYLIN-3076] - Make kylin remember the choices we have made in the "Monitor>Jobs" page
[KYLIN-3074] - Change cube access to project access in ExternalAclProvider.java
[KYLIN-3073] - Automatically refresh the 'Saved Queries' tab page when new query saved.
[KYLIN-3070] - Enable 'kylin.source.hive.flat-table-storage-format' for flat table storage format
[KYLIN-3067] - Provide web interface for dimension capping feature
[KYLIN-3065] - Add 'First' and 'Last' button in case 'Query History' is too much
[KYLIN-3064] - Turn off Yarn timeline-service when submit mr job
[KYLIN-3048] - Give warning when merge with holes, but allow user to force proceed at the same time
[KYLIN-3043] - Don't need create materialized view for lookup tables without snapshot
[KYLIN-3039] - Unclosed hbaseAdmin in ITAclTableMigrationToolTest
[KYLIN-3036] - Allow complex column type when loading source table
[KYLIN-3024] - Input Validator for "Auto Merge Thresholds" text box
[KYLIN-3019] - The pop-up window of 'Calculate Cardinality' and 'Load Hive Table' should have the same hint
[KYLIN-3009] - Rest API to get Cube join SQL
[KYLIN-3008] - Introduce "submit-patch.py"
[KYLIN-3006] - Upgrade Spark to 2.1.2
[KYLIN-2997] - Allow change engineType even if there are segments in cube
[KYLIN-2996] - Show DeployCoprocessorCLI Log failed tables info
[KYLIN-2993] - Add special mr config for base cuboid step
[KYLIN-2992] - Avoid OOM in CubeHFileJob.Reducer
[KYLIN-2990] - Add warning window of exist model names for other project selected
[KYLIN-2987] - Add 'auto.purge=true' when creating intermediate hive table or redistribute a hive table
[KYLIN-2985] - Cache temp json file created by each Calcite Connection
[KYLIN-2984] - Only allow delete FINISHED or DISCARDED job
[KYLIN-2982] - Avoid upgrade column in OLAPTable
[KYLIN-2981] - Typo in Cube refresh setting page.
[KYLIN-2980] - Remove getKey/Value setKey/Value from Kylin's Pair.
[KYLIN-2975] - Unclosed Statement in test
[KYLIN-2966] - push down jdbc column type id mapping
[KYLIN-2965] - Keep the same cost calculation logic between RealizationChooser and CubeInstance
[KYLIN-2947] - Changed the Pop-up box when no project selected
[KYLIN-2941] - Configuration setting for SSO
[KYLIN-2940] - List job restful throw NPE when time filter not set
[KYLIN-2935] - Improve the way to deploy coprocessor
[KYLIN-2928] - PUSH DOWN query cannot use order by function
[KYLIN-2921] - Refactor DataModelDesc
[KYLIN-2918] - Table ACL needs GUI
[KYLIN-2913] - Enable job retry for configurable exceptions
[KYLIN-2912] - Remove "hfile" folder after bulk load to HBase
[KYLIN-2909] - Refine Email Template for notification by freemarker
[KYLIN-2908] - Add one option for migration tool to indicate whether to migrate segment data
[KYLIN-2905] - Refine the process of submitting a job
[KYLIN-2884] - Add delete segment function for portal
[KYLIN-2881] - Improve hbase coprocessor exception handling at kylin server side
[KYLIN-2875] - Cube e-mail notification Validation
[KYLIN-2867] - split large fuzzy Key set
[KYLIN-2866] - Enlarge the reducer number for hyperloglog statistics calculation at step FactDistinctColumnsJob
[KYLIN-2847] - Avoid doing useless work by checking query deadline
[KYLIN-2846] - Add a config of hbase namespace for cube storage
[KYLIN-2809] - Support operator "+" as string concat operator
[KYLIN-2801] - Make default precision and scale in DataType (for hive) configurable
[KYLIN-2764] - Build the dict for UHC column with MR
[KYLIN-2736] - Use multiple threads to calculate HyperLogLogPlusCounter in FactDistinctColumnsMapper
[KYLIN-2672] - Only clean necessary cache for CubeMigrationCLI
[KYLIN-2656] - Support Zookeeper ACL
[KYLIN-2649] - Tableau could send "select *" on a big table
[KYLIN-2645] - Upgrade Kafka version to 0.11.0.1
[KYLIN-2556] - Switch Findbugs to Spotbugs
[KYLIN-2363] - Prune cuboids by capping number of dimensions
[KYLIN-1925] - Do not allow cross project clone for cube
[KYLIN-1872] - Make query visible and interruptible, improve server's stablility

Bug fix

[KYLIN-3268] - Tomcat Security Vulnerability Alert. The version of the tomcat for kylin should upgrade to 7.0.85.
[KYLIN-3263] - AbstractExecutable's retry has problem
[KYLIN-3247] - REST API GET /api/cubes/{cubeName}/segs/{segmentName}/sql should return a cube segment sql
[KYLIN-3242] - export result should use alias too
[KYLIN-3241] - When refresh on 'Add Cube Page', a blank page will appear.
[KYLIN-3228] - Should remove the related segment when deleting a job
[KYLIN-3227] - Automatically remove the blank at the end of lines in properties files
[KYLIN-3226] - When user logs in with only query permission, 'N/A' is displayed in the cube's action list.
[KYLIN-3224] - data can't show when use kylin pushdown model
[KYLIN-3223] - Query for the list of hybrid cubes results in NPE
[KYLIN-3222] - The function of editing 'Advanced Dictionaries' in cube is unavailable.
[KYLIN-3219] - Fix NPE when updating metrics during Spark CubingJob
[KYLIN-3216] - Remove the hard-code of spark-history path in 'check-env.sh'
[KYLIN-3213] - Kylin help has duplicate items
[KYLIN-3211] - Class IntegerDimEnc shuould give more exception information when the length is exceed the max or less than the min
[KYLIN-3210] - The project shows '_null' in result page.
[KYLIN-3205] - Allow one column is used for both dimension and precisely count distinct measure
[KYLIN-3204] - Potentially unclosed resources in JdbcExplorer#evalQueryMetadata
[KYLIN-3199] - The login dialog should be closed when ldap user with no permission login correctly
[KYLIN-3190] - Fix wrong parameter in revoke access API
[KYLIN-3184] - Fix '_null' project on the query page
[KYLIN-3183] - Fix the bug of the 'Remove' button in 'Query History'
[KYLIN-3178] - Delete table acl failed will cause the wabpage awalys shows "Please wait..."
[KYLIN-3177] - Merged Streaming cube segment has no start/end time
[KYLIN-3175] - Streaming segment lost TSRange after merge
[KYLIN-3173] - DefaultScheduler shutdown didn't reset field initialized.
[KYLIN-3172] - No such file or directory error with CreateLookupHiveViewMaterializationStep
[KYLIN-3167] - Datatype lost precision when using beeline
[KYLIN-3165] - Fix the IllegalArgumentException during segments auto merge
[KYLIN-3164] - HBase connection must be closed when clearing connection pool
[KYLIN-3143] - Wrong use of Preconditions.checkNotNull() in ManagedUser#removeAuthoritie
[KYLIN-3139] - Failure in map-reduce job due to undefined hdp.version variable when using HDP stack and remote HBase cluster
[KYLIN-3136] - Endless status while subtask happens to be the illegal RUNNING
[KYLIN-3135] - Fix regular expression bug in SQL comments
[KYLIN-3131] - After refresh the page,the cubes can't sort by 'create_time'
[KYLIN-3130] - If we add new cube then refresh the page,the page is blank
[KYLIN-3116] - Fix cardinality caculate checkbox issue when loading tables
[KYLIN-3112] - The job 'Pause' operation has logic bug in the kylin server.
[KYLIN-3111] - Close of HBaseAdmin instance should be placed in finally block
[KYLIN-3110] - The dashboard page has some display problems.
[KYLIN-3106] - DefaultScheduler.shutdown should use ExecutorService.shutdownNow instead of ExecutorService.shutdown
[KYLIN-3104] - When the user log out from "Monitor" page, an alert dialog will pop up warning "Failed to load query."
[KYLIN-3102] - Solve the problems for incomplete display of Hive Table tree.
[KYLIN-3101] - The "search" icon will separate from the "Filter" textbox when click the "showSteps" button of a job in the jobList
[KYLIN-3097] - A few spell error in partials directory
[KYLIN-3087] - Fix the DistributedLock release bug in GlobalDictionaryBuilder
[KYLIN-3085] - CubeManager.updateCube() must not update the cached CubeInstance
[KYLIN-3084] - File not found Exception when processing union-all in TEZ mode
[KYLIN-3083] - potential overflow in CubeHBaseRPC#getCoprocessorTimeoutMillis
[KYLIN-3082] - Close of GTBuilder should be placed in finally block in InMemCubeBuilder
[KYLIN-3081] - Ineffective null check in CubeController#cuboidsExport
[KYLIN-3077] - EDW.TEST_SELLER_TYPE_DIM_TABLE is not being created by the integration test, but it's presence in the Hive is expected
[KYLIN-3069] - Add proper time zone support to the WebUI instead of GMT/PST kludge
[KYLIN-3063] - load-hive-conf.sh should not get the commented configuration item
[KYLIN-3061] - When we cancel the Topic modification for 'Kafka Setting' of streaming table, the 'Cancel' operation will make a mistake.
[KYLIN-3060] - The logical processing of creating or updating streaming table has a bug in server, which will cause a NullPointerException.
[KYLIN-3058] - We should limit the integer type ID and Port for "Kafka Setting" in "Streaming Cluster" page
[KYLIN-3056] - Fix 'Cannot find segment null' bug when click 'SQL' in the cube view page
[KYLIN-3055] - Fix NullPointerException for intersect_count
[KYLIN-3054] - The drop-down menu in the grid column of query results missing a little bit.
[KYLIN-3053] - When aggregation group verification failed, the error message about aggregation group number does not match with the actual on the Advanced Setting page
[KYLIN-3049] - Filter the invalid zero value of "Auto Merge Thresholds" parameter when you create or upate a cube.
[KYLIN-3047] - Wrong column type when sync hive table via beeline
[KYLIN-3042] - In query results page, the results data table should resize when click "fullScreen" button
[KYLIN-3040] - Refresh a non-partitioned cube changes the segment name to "19700101000000_2922789940817071255"
[KYLIN-3038] - cannot support sum of type-converted column SQL
[KYLIN-3034] - In the models tree, the "Edit(JSON)" option is missing partly.
[KYLIN-3032] - Cube size shows 0 but actually it isn't empty
[KYLIN-3031] - KeywordDefaultDirtyHack should ignore case of default like other database does
[KYLIN-3030] - In the cubes table, the options of last column action are missing partly.
[KYLIN-3029] - The warning window of existing cube name does not work
[KYLIN-3028] - Build cube error when set S3 as working-dir
[KYLIN-3026] - Can not see full cube names on insight page
[KYLIN-3020] - Improve org.apache.hadoop.util.ToolRunner to be threadsafe
[KYLIN-3017] - Footer covers the selection box and some options can not be selected
[KYLIN-3016] - StorageCleanup job doesn't clean up all the legacy fiels in a in Read/Write seperation environment
[KYLIN-3004] - Update validation when deleting segment
[KYLIN-3001] - Fix the wrong Cache key issue
[KYLIN-2995] - Set SparkContext.hadoopConfiguration to HadoopUtil in Spark Cubing
[KYLIN-2994] - Handle NPE when load dict in DictionaryManager
[KYLIN-2991] - Query hit NumberFormatException if partitionDateFormat is not yyyy-MM-dd
[KYLIN-2989] - Close of BufferedWriter should be placed in finally block in SCCreator
[KYLIN-2974] - zero joint group can lead to query error
[KYLIN-2971] - Fix the wrong "Realization Names" in logQuery when hit cache
[KYLIN-2969] - Fix the wrong NumberBytesCodec cache in Number2BytesConverter
[KYLIN-2968] - misspelled word in table_load.html
[KYLIN-2967] - Add the dependency check when deleting a project
[KYLIN-2962] - drop error job not delete segment
[KYLIN-2959] - SAML logout issue
[KYLIN-2956] - building trie dictionary blocked on value of length over 4095
[KYLIN-2953] - List readable project not correct if add limit and offset
[KYLIN-2939] - Get config properties not correct in UI
[KYLIN-2933] - Fix compilation against the Kafka 1.0.0 release
[KYLIN-2930] - Selecting one column in union causes compile error
[KYLIN-2929] - speed up Dump file performance
[KYLIN-2922] - Query fails when a column is used as dimension and sum(column) at the same time
[KYLIN-2917] - Dup alias on OLAPTableScan
[KYLIN-2907] - Check if a number is a positive integer
[KYLIN-2901] - Update correct cardinality for empty table
[KYLIN-2887] - Subquery columns not exported in OLAPContext allColumns
[KYLIN-2876] - Ineffective check in ExternalAclProvider
[KYLIN-2874] - Ineffective check in CubeDesc#getInitialCuboidScheduler
[KYLIN-2849] - duplicate segmentÔºåcannot be deleted and data cannot be refreshed and merged
[KYLIN-2837] - Ineffective call to toUpperCase() in MetadataManager
[KYLIN-2836] - Lack of synchronization in CodahaleMetrics#close
[KYLIN-2835] - Unclosed resources in JdbcExplorer
[KYLIN-2794] - MultipleDictionaryValueEnumerator should output values in sorted order
[KYLIN-2756] - Let "LIMIT" be optional in "Inspect" page
[KYLIN-2470] - cube build failed when 0 bytes input for non-partition fact table
[KYLIN-1664] - Harden security check for '/kylin/api/admin/config' API

Task

[KYLIN-3207] - Blog for Kylin Superset Integration
[KYLIN-3200] - Enable SonarCloud for Code Analysis
[KYLIN-3198] - More Chinese Howto Documents
[KYLIN-3195] - Kylin v2.3.0 Release
[KYLIN-3191] - Remove the deprecated configuration item kylin.security.acl.default-role
[KYLIN-3189] - Documents for kylin python client
[KYLIN-3080] - Kylin Qlik Sense Integration Documentation
[KYLIN-3068] - Rename deprecated parameter for HDFS block size in HiveColumnCardinalityJob
[KYLIN-3062] - Hide RAW measure
[KYLIN-3010] - Remove v1 Spark engine code
[KYLIN-2843] - Upgrade nvd3 version
[KYLIN-2797] - Remove MR engine V1
[KYLIN-2796] - Remove the legacy "statisticsenabled" codes in FactDistinctColumnsJob

Sub-Task

[KYLIN-3235] - add null check for SQL
[KYLIN-3202] - Doc directory for 2.3
[KYLIN-3155] - Create a document for how to use dashboard
[KYLIN-3154] - Create a document for cube planner
[KYLIN-3153] - Create a document for system cube creation
[KYLIN-3018] - Change maxLevel for layered cubing
[KYLIN-2946] - Introduce a tool for batch incremental building of system cubes
[KYLIN-2934] - Provide user guide for KYLIN-2656(Support Zookeeper ACL)
[KYLIN-2822] - Introduce sunburst chart to show cuboid tree
[KYLIN-2746] - Separate filter row count & aggregated row count for metrics collection returned by coprocessor
[KYLIN-2735] - Introduce an option to make job scheduler consider job priority
[KYLIN-2734] - Introduce hot cuboids export & import
[KYLIN-2733] - Introduce optimize job for adjusting cuboid set
[KYLIN-2732] - Introduce base cuboid as a new input for cubing job
[KYLIN-2731] - Introduce checkpoint executable
[KYLIN-2725] - Introduce a tool for creating system cubes relating to query & job metrics
[KYLIN-2723] - Introduce metrics collector for query & job metrics
[KYLIN-2722] - Introduce a new measure, called active reservoir, for actively pushing metrics to reporters

v2.2.0 - 2017-11-03

Tag: kylin-2.2.0 This is a major release after 2.1, with more than 70 bug fixes and enhancements. Check How to upgrade.

New Feature

[KYLIN-2703] - Manage ACL through Apache Ranger
[KYLIN-2752] - Make HTable name prefix configurable
[KYLIN-2761] - Table Level ACL
[KYLIN-2775] - Streaming Cube Sample

Improvement

[KYLIN-2535] - Use ResourceStore to manage ACL files
[KYLIN-2604] - Use global dict as the default encoding for precise distinct count in web
[KYLIN-2606] - Only return counter for precise count_distinct if query is exactAggregate
[KYLIN-2622] - AppendTrieDictionary support not global
[KYLIN-2623] - Move output(Hbase) related code from MR engine to outputside
[KYLIN-2653] - Spark Cubing read metadata from HDFS
[KYLIN-2717] - Move concept Table under Project
[KYLIN-2790] - Add an extending point to support other types of column family
[KYLIN-2795] - Improve REST API document, add get/list jobs
[KYLIN-2803] - Pushdown non "select" query
[KYLIN-2818] - Refactor dateRange & sourceOffset on CubeSegment
[KYLIN-2819] - Add "kylin.env.zookeeper-base-path" for zk path
[KYLIN-2823] - Trim TupleFilter after dictionary-based filter optimization
[KYLIN-2844] - Override "max-visit-scanrange" and "max-fuzzykey-scan" at cube level
[KYLIN-2854] - Remove duplicated controllers
[KYLIN-2856] - Log pushdown query as a kind of BadQuery
[KYLIN-2857] - MR configuration should be overwritten by user specified parameters when resuming MR jobs
[KYLIN-2858] - Add retry in cache sync
[KYLIN-2879] - Upgrade Spring & Spring Security to fix potential vulnerability
[KYLIN-2891] - Upgrade Tomcat to 7.0.82.
[KYLIN-2963] - Remove Beta for Spark Cubing

Bug

[KYLIN-1794] - Enable job list even some job metadata parsing failed
[KYLIN-2600] - Incorrectly set the range start when filtering by the minimum value
[KYLIN-2705] - Allow removing model's "partition_date_column" on web
[KYLIN-2706] - Fix the bug for the comparator in SortedIteratorMergerWithLimit
[KYLIN-2707] - Fix NPE in JobInfoConverter
[KYLIN-2716] - Non-thread-safe WeakHashMap leading to high CPU
[KYLIN-2718] - Overflow when calculating combination amount based on static rules
[KYLIN-2753] - Job duration may become negative
[KYLIN-2766] - Kylin uses default FS to put the coprocessor jar, instead of the working dir
[KYLIN-2773] - Should not push down join condition related columns are compatible while not consistent
[KYLIN-2781] - Make 'find-hadoop-conf-dir.sh' executable
[KYLIN-2786] - Miss "org.apache.kylin.source.kafka.DateTimeParser"
[KYLIN-2788] - HFile is not written to S3
[KYLIN-2789] - Cube's last build time is wrong
[KYLIN-2791] - Fix bug in readLong function in BytesUtil
[KYLIN-2798] - Can't rearrange the order of rowkey columns though web UI
[KYLIN-2799] - Building cube with percentile measure encounter with NullPointerException
[KYLIN-2800] - All dictionaries should be built based on the flat hive table
[KYLIN-2806] - Empty results from JDBC with Date filter in prepareStatement
[KYLIN-2812] - Save to wrong database when loading Kafka Topic
[KYLIN-2814] - HTTP connection may not be released in RestClient
[KYLIN-2815] - Empty results with prepareStatement but OK with KylinStatement
[KYLIN-2824] - Parse Boolean type in JDBC driver
[KYLIN-2832] - Table meta missing from system diagnosis
[KYLIN-2833] - Storage cleanup job could delete the intermediate hive table used by running jobs
[KYLIN-2834] - Bug in metadata sync, Broadcaster lost listener after cache wipe
[KYLIN-2838] - Should get storageType in changeHtableHost of CubeMigrationCLI
[KYLIN-2862] - BasicClientConnManager in RestClient can't do well with syncing many query severs
[KYLIN-2863] - Double caret bug in sample.sh for old version bash
[KYLIN-2865] - Wrong fs when use two cluster
[KYLIN-2868] - Include and exclude filters not work on ResourceTool
[KYLIN-2870] - Shortcut key description is error at Kylin-Web
[KYLIN-2871] - Ineffective null check in SegmentRange
[KYLIN-2877] - Unclosed PreparedStatement in QueryService#execute()
[KYLIN-2906] - Check model/cube name is duplicated when creating model/cube
[KYLIN-2915] - Exception during query on lookup table
[KYLIN-2920] - Failed to get streaming config on WebUI
[KYLIN-2944] - HLLCSerializer, RawSerializer, PercentileSerializer returns shared object in serialize()
[KYLIN-2949] - Couldn't get authorities with LDAP in RedHat Linux

Task

[KYLIN-2782] - Replace DailyRollingFileAppender with RollingFileAppender to allow log retention
[KYLIN-2925] - Provide document for Ranger security integration
[KYLIN-2549] - Modify tools that related to Acl
[KYLIN-2728] - Introduce a new cuboid scheduler based on cuboid tree rather than static rules
[KYLIN-2729] - Introduce greedy algorithm for cube planner
[KYLIN-2730] - Introduce genetic algorithm for cube planner
[KYLIN-2802] - Enable cube planner phase one
[KYLIN-2826] - Add basic support classes for cube planner algorithms
[KYLIN-2961] - Provide user guide for Ranger Kylin Plugin

v2.1.0 - 2017-08-17

Tag: kylin-2.1.0 This is a major release after 2.0, with more than 100 bug fixes and enhancements. Check How to upgrade.

New Feature

[KYLIN-1351] - Support RDBMS as data source
[KYLIN-2515] - Route unsupported query back to source
[KYLIN-2646] - Project level query authorization
[KYLIN-2665] - Add model JSON edit in web

Improvement

[KYLIN-2506] - Refactor Global Dictionary
[KYLIN-2562] - Allow configuring yarn app tracking URL pattern
[KYLIN-2578] - Refactor DistributedLock
[KYLIN-2579] - Improvement on subqueries: reorder subqueries joins with RelOptRule
[KYLIN-2580] - Improvement on subqueries: allow grouping by columns from subquery
[KYLIN-2586] - use random port for CacheServiceTest as fixed port 7777 might have been occupied
[KYLIN-2596] - Enable generating multiple streaming messages with one input message in streaming parser
[KYLIN-2597] - Deal with trivial expression in filters like x = 1 + 2
[KYLIN-2598] - Should not translate filter to a in-clause filter with too many elements
[KYLIN-2599] - select * in subquery fail due to bug in hackSelectStar
[KYLIN-2602] - Add optional job threshold arg for MetadataCleanupJob
[KYLIN-2603] - Push 'having' filter down to storage
[KYLIN-2607] - Add http timeout for RestClient
[KYLIN-2610] - Optimize BuiltInFunctionTransformer performance
[KYLIN-2616] - GUI for multiple column count distinct measure
[KYLIN-2624] - Correct reporting of HBase errors
[KYLIN-2627] - ResourceStore to support simple rollback
[KYLIN-2628] - Remove synchronized modifier for reloadCubeLocalAt
[KYLIN-2633] - Upgrade Spark to 2.1
[KYLIN-2642] - Relax check in RowKeyColDesc to keep backward compatibility
[KYLIN-2667] - Ignore whitespace when caching query
[KYLIN-2668] - Support Calcites Properties in JDBC URL
[KYLIN-2673] - Support change the fact table when the cube is disable
[KYLIN-2676] - Keep UUID in metadata constant
[KYLIN-2677] - Add project configuration view page
[KYLIN-2689] - Only dimension columns can join when create a model
[KYLIN-2691] - Support delete broken cube
[KYLIN-2695] - Allow override spark conf in cube
[KYLIN-2696] - Check SQL injection in model filter condition
[KYLIN-2700] - Allow override Kafka conf at cube level
[KYLIN-2704] - StorageCleanupJob should deal with a new metadata path
[KYLIN-2742] - Specify login page for Spring security 4.x
[KYLIN-2757] - Get cube size when using Azure Data Lake Store
[KYLIN-2783] - Refactor CuboidScheduler to be extensible
[KYLIN-2784] - Set User-Agent for ODBC/JDBC Drivers
[KYLIN-2793] - ODBC Driver - Bypass cert validation when connect to SSL service

Bug fix

[KYLIN-1668] - Rowkey column shouldn't allow delete and add
[KYLIN-1683] - Row key could drag and drop in view state of cube - advanced settings tabpage
[KYLIN-2472] - Support Unicode chars in kylin.properties
[KYLIN-2493] - Fix BufferOverflowException in FactDistinctColumnsMapper when value exceeds 4096 bytes
[KYLIN-2540] - concat cascading is not supported
[KYLIN-2544] - Fix wrong left join type when editing lookup table
[KYLIN-2557] - Fix creating HBase table conflict when multiple kylin instances are starting concurrently
[KYLIN-2559] - Enhance check-env.sh to check 'kylin.env.hdfs-working-dir' to be mandatory
[KYLIN-2563] - Fix preauthorize-annotation bugs in query authorization
[KYLIN-2568] - 'kylin_port_replace_util.sh' should only modify the kylin port and keep other properties unchanged.
[KYLIN-2571] - Return correct driver version from kylin jdbc driver
[KYLIN-2572] - Fix parsing 'hive_home' error in 'find-hive-dependency.sh'
[KYLIN-2573] - Enhance 'kylin.sh stop' to terminate kylin process finally
[KYLIN-2574] - RawQueryLastHacker should group by all possible dimensions
[KYLIN-2581] - Fix deadlock bugs in broadcast sync
[KYLIN-2582] - 'Server Config' should be refreshed automatically in web page 'System', after we update it successfully.
[KYLIN-2588] - Query failed when two top-n measure with order by count(*) exists in one cube
[KYLIN-2589] - Enhance thread-safe in Authentication
[KYLIN-2592] - Fix distinct count measure build failed issue with spark cubing
[KYLIN-2593] - Fix NPE issue when querying with Ton-N by count(*)
[KYLIN-2594] - After reloading metadata, the project list should refresh
[KYLIN-2595] - Display column alias name when query with keyword 'As'
[KYLIN-2601] - The return type of tinyint for sum measure should be bigint
[KYLIN-2605] - Remove the hard-code sample data path in 'sample.sh'
[KYLIN-2608] - Bubble sort bug in JoinDesc
[KYLIN-2609] - Fix grant role access issue on project page.
[KYLIN-2611] - Unclosed HBaseAdmin in AclTableMigrationTool#checkTableExist
[KYLIN-2612] - Potential NPE accessing familyMap in AclTableMigrationTool#getAllAceInfo
[KYLIN-2613] - Wrong variable is used in DimensionDesc#hashCode
[KYLIN-2621] - Fix issue on mapping LDAP group to the admin group
[KYLIN-2637] - Show tips after creating project successfully
[KYLIN-2641] - The current selected project is incorrect after we delete a project.
[KYLIN-2643] - PreparedStatement should be closed in QueryServiceV2#execute()
[KYLIN-2644] - Fix "Add Project" after refreshing Insight page
[KYLIN-2647] - Should get FileSystem from HBaseConfiguration in HBaseResourceStore
[KYLIN-2648] - kylin.env.hdfs-working-dir should be qualified and absolute path
[KYLIN-2652] - Make KylinConfig threadsafe in CubeVisitService
[KYLIN-2655] - Fix wrong job duration issue when resuming the error or stopped job.
[KYLIN-2657] - Fix Cube merge NPE whose TopN dictionary not found
[KYLIN-2658] - Unclosed ResultSet in JdbcExplorer#loadTableMetadata()
[KYLIN-2660] - Show error tips if load hive error occurs and can not be connected.
[KYLIN-2661] - Fix Cube list page display issue when using MODELER or ANALYST
[KYLIN-2664] - Fix Extended column bug in web
[KYLIN-2670] - Fix CASE WHEN issue in orderby clause
[KYLIN-2674] - Should not catch OutOfMemoryError in coprocessor
[KYLIN-2678] - Fix minor issues in KylinConfigCLITest
[KYLIN-2684] - Fix Object.class not registered in Kyro issue with spark cubing
[KYLIN-2687] - When the model has a ready cube, should not allow user to edit model JSON in web.
[KYLIN-2688] - When the model has a ready cube, should not allow user to edit model JSON in web.
[KYLIN-2693] - Should use overrideHiveConfig for LookupHiveViewMaterialization and RedistributeFlatHiveTable
[KYLIN-2694] - Fix ArrayIndexOutOfBoundsException in SparkCubingByLayer
[KYLIN-2699] - Tomcat LinkageError for curator-client jar file conflict
[KYLIN-2701] - Unclosed PreparedStatement in QueryService#getPrepareOnlySqlResponse
[KYLIN-2702] - Ineffective null check in DataModelDesc#initComputedColumns()
[KYLIN-2707] - Fix NPE in JobInfoConverter
[KYLIN-2708] - cube merge operations can not execute success
[KYLIN-2711] - NPE if job output is lost
[KYLIN-2713] - Fix ITJdbcSourceTableLoaderTest.java and ITJdbcTableReaderTest.java missing license header
[KYLIN-2719] - serviceStartTime of CubeVisitService should not be an attribute which may be shared by multi-thread
[KYLIN-2743] - Potential corrupt TableDesc when loading an existing Hive table
[KYLIN-2748] - Calcite code generation can not gc cause OOM
[KYLIN-2754] - Fix Sync issue when reload existing hive table
[KYLIN-2758] - Query pushdown should be able to skip database prefix
[KYLIN-2762] - Get "Owner required" error on saving data model
[KYLIN-2767] - 404 error on click "System" tab
[KYLIN-2768] - Wrong UI for count distinct measure
[KYLIN-2769] - Non-partitioned cube doesn't need show start/end time
[KYLIN-2778] - Sample cube doesn't have ACL info
[KYLIN-2780] - QueryController.getMetadata and CacheController.wipeCache may be deadlock
[KYLIN-2548] - Keep ACL information backward compatibile

v2.0.0 - 2017-04-30

Tag: kylin-2.0.0 This is a major release with Spark Cubing, Snowflake Data Model and runs TPC-H Benchmark. Check out the download and the how to upgrade guide.

New Feature

[KYLIN-744] - Spark Cube Build Engine
[KYLIN-2006] - Make job engine distributed and HA
[KYLIN-2031] - New Fix_length_Hex encoding to support hash value and better Integer encoding to support negative value
[KYLIN-2180] - Add project config and make config priority become "cube > project > server"
[KYLIN-2240] - Add a toggle to ignore all cube signature inconsistency temporally
[KYLIN-2317] - Hybrid Cube CLI Tools
[KYLIN-2331] - By layer Spark cubing
[KYLIN-2351] - Support Cloud DFS as kylin.env.hdfs-working-dir
[KYLIN-2388] - Hot load kylin config from web
[KYLIN-2394] - Upgrade Calcite to 1.11 and Avatica to 1.9
[KYLIN-2396] - Percentile pre-aggregation implementation

Improvements

[KYLIN-227] - Support "Pause" on Kylin Job
[KYLIN-490] - Support multiple column distinct count
[KYLIN-995] - Enable kylin to support joining the same lookup table more than once
[KYLIN-1832] - HyperLogLog codec performance improvement
[KYLIN-1875] - Snowflake schema support
[KYLIN-1971] - Cannot support columns with same name under different table
[KYLIN-2029] - lookup table support count(distinct column)
[KYLIN-2030] - lookup table support group by primary key when no derived dimension
[KYLIN-2096] - Support "select version()" SQL statement
[KYLIN-2131] - Load Kafka client configuration from properties files
[KYLIN-2133] - Check web server port availability when startup
[KYLIN-2135] - Enlarge FactDistinctColumns reducer number
[KYLIN-2136] - Enhance cubing algorithm selection
[KYLIN-2141] - Add include/exclude interface for ResourceTool
[KYLIN-2144] - move useful operation tools to org.apache.kylin.tool
[KYLIN-2163] - Refine kylin scripts, less verbose during start up
[KYLIN-2165] - Use hive table statistics data to get the total count
[KYLIN-2169] - Refactor AbstractExecutable to respect KylinConfig
[KYLIN-2170] - Mapper/Reducer cleanup() exception handling
[KYLIN-2175] - cubestatsreader support reading unfinished segments
[KYLIN-2181] - remove integer as fixed_length in test_kylin_cube_with_slr_empty desc
[KYLIN-2187] - Enhance TableExt metadata
[KYLIN-2192] - More Robust Global Dictionary
[KYLIN-2193] - parameterise org.apache.kylin.storage.translate.DerivedFilterTranslator#IN_THRESHOLD
[KYLIN-2195] - Setup naming convention for kylin properties
[KYLIN-2196] - Update Tomcat clas loader to parallel loader
[KYLIN-2198] - Add a framework to allow major changes in DimensionEncoding
[KYLIN-2205] - Use column name as the default dimension name
[KYLIN-2215] - Refactor DimensionEncoding.encode(byte[]) to encode(String)
[KYLIN-2217] - Reducers build dictionaries locally
[KYLIN-2220] - Enforce same name between Cube & CubeDesc
[KYLIN-2222] - web ui uses rest api to decide which dim encoding is valid for different typed columns
[KYLIN-2227] - rename kylin-log4j.properties to kylin-tools-log4j.properties and move it to global conf folder
[KYLIN-2238] - Add query server scan threshold
[KYLIN-2244] - "kylin.job.cuboid.size.memhungry.ratio" shouldn't be applied on measures like TopN
[KYLIN-2246] - redesign the way to decide layer cubing reducer count
[KYLIN-2248] - TopN merge further optimization after KYLIN-1917
[KYLIN-2252] - Enhance project/model/cube name check
[KYLIN-2255] - Drop v1 CubeStorageQuery, Storage Engine ID=0
[KYLIN-2263] - Display reasonable exception message if could not find kafka dependency for streaming build
[KYLIN-2266] - Reduce memory usage for building global dict
[KYLIN-2269] - Reduce MR memory usage for global dict
[KYLIN-2280] - A easier way to change all the conflict ports when start multi kylin instance in the same server
[KYLIN-2283] - Have a general purpose data generation tool
[KYLIN-2287] - Speed up model and cube list load in Web
[KYLIN-2290] - minor improvements on limit
[KYLIN-2294] - Refactor CI, merge with_slr and without_slr cubes
[KYLIN-2295] - Refactor CI, blend view cubes into the rest
[KYLIN-2296] - Allow cube to override kafka configuration
[KYLIN-2304] - Only copy latest version dict for global dict
[KYLIN-2306] - Tolerate Class missing when loading job list
[KYLIN-2307] - Make HBase 1.x the default of master
[KYLIN-2308] - Allow user to set more columnFamily in web
[KYLIN-2310] - Refactor CI, add IT for date/time encoding & extended column
[KYLIN-2312] - Display Server Config/Environment by order in system tab
[KYLIN-2314] - Add Integration Test (IT) for snowflake
[KYLIN-2323] - Refine Table load/unload error message
[KYLIN-2328] - Reduce the size of metadata uploaded to distributed cache
[KYLIN-2338] - refactor BitmapCounter.DataInputByteBuffer
[KYLIN-2349] - Serialize BitmapCounter with peekLength
[KYLIN-2353] - Serialize BitmapCounter with distinct count
[KYLIN-2358] - CuboidReducer has too many "if (aggrMask[i])" checks
[KYLIN-2359] - Update job build step name
[KYLIN-2364] - Output table name to error info in LookupTable
[KYLIN-2375] - Default cache size (10M) is too small
[KYLIN-2377] - Add kylin client query timeout
[KYLIN-2378] - Set job thread name with job uuid
[KYLIN-2379] - Add UseCMSInitiatingOccupancyOnly to KYLIN_JVM_SETTINGS
[KYLIN-2380] - Refactor DbUnit assertions
[KYLIN-2387] - A new BitmapCounter with better performance
[KYLIN-2389] - Improve resource utilization for DistributedScheduler
[KYLIN-2393] - Add "hive.auto.convert.join" and "hive.stats.autogather" to kylin_hive_conf.xml
[KYLIN-2400] - Simplify Dictionary interface
[KYLIN-2404] - Add "hive.merge.mapfiles" and "hive.merge.mapredfiles" to kylin_hive_conf.xml
[KYLIN-2409] - Performance tunning for in-mem cubing
[KYLIN-2411] - Kill MR job on pause
[KYLIN-2414] - Distinguish UHC columns from normal columns in KYLIN-2217
[KYLIN-2415] - Change back default metadata name to "kylin_metadata"
[KYLIN-2418] - Refactor pom.xml, drop unused parameter
[KYLIN-2422] - NumberDictionary support for decimal with extra 0 after "."
[KYLIN-2423] - Model should always include PK/FK as dimensions
[KYLIN-2424] - Optimize the integration test's performance
[KYLIN-2428] - Cleanup unnecessary shaded libraries for job/coprocessor/jdbc/server
[KYLIN-2436] - add a configuration knob to disable spilling of aggregation cache
[KYLIN-2437] - collect number of bytes scanned to query metrics
[KYLIN-2438] - replace scan threshold with max scan bytes
[KYLIN-2442] - Re-calculate expansion rate, count raw data size regardless of flat table compression
[KYLIN-2443] - Report coprocessor error information back to client
[KYLIN-2446] - Support project names filter in DeployCoprocessorCLI
[KYLIN-2451] - Set HBASE_RPC_TIMEOUT according to kylin.storage.hbase.coprocessor-timeout-seconds
[KYLIN-2489] - Upgrade zookeeper dependency to 3.4.8
[KYLIN-2494] - Model has no dup column on dimensions and measures
[KYLIN-2501] - Stream Aggregate GTRecords at Query Server
[KYLIN-2503] - Spark cubing step should show YARN app link
[KYLIN-2518] - Improve the sampling performance of FactDistinctColumns step
[KYLIN-2525] - Smooth upgrade to 2.0.0 from older metadata
[KYLIN-2527] - Speedup LookupStringTable, use HashMap instead of ConcurrentHashMap
[KYLIN-2528] - refine job email notification to support starttls and customized port
[KYLIN-2529] - Allow thread-local override of KylinConfig
[KYLIN-2545] - Number2BytesConverter could tolerate malformed numbers
[KYLIN-2560] - Fix license headers for 2.0.0 release

Bug fix

[KYLIN-1603] - Building job still finished even MR job error happened.
[KYLIN-1770] - Upgrade Calcite dependency (v1.10)
[KYLIN-1793] - Job couldn't stop when hive commands got error with beeline
[KYLIN-1945] - Cuboid.translateToValidCuboid method throw exception while cube building or query execute
[KYLIN-2077] - Inconsistent cube desc signature for CubeDesc
[KYLIN-2153] - Allow user to skip the check in CubeMetaIngester
[KYLIN-2155] - get-properties.sh doesn't support parameters starting with "-n"
[KYLIN-2166] - Unclosed HBaseAdmin in StorageCleanupJob#cleanUnusedHBaseTables
[KYLIN-2172] - Potential NPE in ExecutableManager#updateJobOutput
[KYLIN-2174] - partitoin column format visibility issue
[KYLIN-2176] - org.apache.kylin.rest.service.JobService#submitJob will leave orphan NEW segment in cube when exception is met
[KYLIN-2191] - Integer encoding error for width from 5 to 7
[KYLIN-2197] - Has only base cuboid for some cube desc
[KYLIN-2202] - Fix the conflict between KYLIN-1851 and KYLIN-2135
[KYLIN-2207] - Ineffective null check in ExtendCubeToHybridCLI#createFromCube()
[KYLIN-2208] - Unclosed FileReader in HiveCmdBuilder#build()
[KYLIN-2209] - Potential NPE in StreamingController#deserializeTableDesc()
[KYLIN-2211] - IDictionaryValueEnumerator should return String instead of byte[]
[KYLIN-2212] - 'NOT' operator in filter on derived column may get incorrect result
[KYLIN-2213] - UnsupportedOperationException when excute 'not like' query on cube v1
[KYLIN-2216] - Potential NPE in model#findTable() call
[KYLIN-2224] - "select * from fact inner join lookup " does not return values for look up columns
[KYLIN-2232] - cannot set partition date column pattern when edit a model
[KYLIN-2236] - JDBC statement.setMaxRows(10) is not working
[KYLIN-2237] - Ensure dimensions and measures of model don't have null column
[KYLIN-2242] - Directly write hdfs file in reducer is dangerous
[KYLIN-2243] - TopN memory estimation is inaccurate in some cases
[KYLIN-2251] - JDBC Driver httpcore dependency conflict
[KYLIN-2254] - A kind of sub-query does not work
[KYLIN-2262] - Get "null" error when trigger a build with wrong cube name
[KYLIN-2268] - Potential NPE in ModelDimensionDesc#init()
[KYLIN-2271] - Purge cube may delete building segments
[KYLIN-2275] - Remove dimensions cause wrong remove in advance settings
[KYLIN-2277] - SELECT * query returns a "COUNT__" column, which is not expected
[KYLIN-2282] - Step name "Build N-Dimension Cuboid Data : N-Dimension" is inaccurate
[KYLIN-2284] - intersect_count function error
[KYLIN-2288] - Kylin treat empty string as error measure which is inconsistent with hive
[KYLIN-2292] - workaround for CALCITE-1540
[KYLIN-2297] - Manually edit cube segment start/end time will throw error in UI
[KYLIN-2298] - timer component get wrong seconds
[KYLIN-2300] - Show MapReduce waiting time for each build step
[KYLIN-2301] - ERROR when executing query with subquery in "NOT IN" clause.
[KYLIN-2305] - Unable to use long searchBase/Pattern for LDAP
[KYLIN-2313] - Cannot find a cube in a subquery case with count distinct
[KYLIN-2316] - Build Base Cuboid Data ERROR
[KYLIN-2320] - TrieDictionaryForest incorrect getSizeOfId() when empty dictionary
[KYLIN-2326] - ERROR: ArrayIndexOutOfBoundsException: -1
[KYLIN-2329] - Between 0.06 - 0.01 and 0.06 + 0.01, returns incorrect result
[KYLIN-2330] - CubeDesc returns redundant DerivedInfo
[KYLIN-2337] - Remove expensive toString in SortedIteratorMergerWithLimit
[KYLIN-2340] - Some subquery returns incorrect result
[KYLIN-2341] - sum(case .. when ..) is not supported
[KYLIN-2342] - When NoClassDefFoundError occurred in building cube, no error in kylin.log
[KYLIN-2343] - When syn hive table, got error but actually the table is synced
[KYLIN-2347] - TPC-H query 13, too many HLLC objects exceed memory budget
[KYLIN-2348] - TPC-H query 20, requires multiple models in one query
[KYLIN-2356] - Incorrect result when filter on numeric columns
[KYLIN-2357] - Make ERROR_RECORD_LOG_THRESHOLD configurable
[KYLIN-2362] - Unify shell interpreter in scripts to avoid syntax diversity
[KYLIN-2367] - raw query like select * where ... returns empty columns
[KYLIN-2376] - Upgrade checkstyle plugin
[KYLIN-2382] - The column order of "select *" is not as defined in the table
[KYLIN-2383] - count distinct should not include NULL
[KYLIN-2390] - Wrong argument order for WinAggResetContextImpl()
[KYLIN-2391] - Unclosed FileInputStream in KylinConfig#getConfigAsString()
[KYLIN-2395] - Lots of warning messages about failing to scan jars in kylin.out
[KYLIN-2406] - TPC-H query 20, prevent NPE and give error hint
[KYLIN-2407] - TPC-H query 20, routing bug in lookup query and cube query
[KYLIN-2410] - Global dictionary does not respect the Hadoop configuration in mapper & reducer
[KYLIN-2416] - Max LDAP password length is 15 chars
[KYLIN-2419] - Rollback KYLIN-2292 workaround
[KYLIN-2426] - Tests will fail if env not satisfy hardcoded path in ITHDFSResourceStoreTest
[KYLIN-2429] - Variable initialized should be declared volatile in SparkCubingByLayer#execute()
[KYLIN-2430] - Unnecessary exception catching in BulkLoadJob
[KYLIN-2432] - Couldn't select partition column in some old browser (such as Google Chrome 18.0.1025.162)
[KYLIN-2433] - Handle the column that all records is null in MergeCuboidMapper
[KYLIN-2434] - Spark cubing does not respect config kylin.source.hive.database-for-flat-table
[KYLIN-2440] - Query failed if join condition columns not appear on cube
[KYLIN-2448] - Cloning a Model with a '-' in the name
[KYLIN-2449] - Rewrite should not run on OLAPAggregateRel if has no OLAPTable
[KYLIN-2452] - Throw NoSuchElementException when AggregationGroup size is 0
[KYLIN-2454] - Data generation tool will fail if column name is hive reserved keyword
[KYLIN-2457] - Should copy the latest dictionaries on dimension tables in a batch merge job
[KYLIN-2462] - PK and FK both as dimensions causes save cube failure
[KYLIN-2464] - Use ConcurrentMap instead of ConcurrentHashMap to avoid runtime errors
[KYLIN-2465] - Web page still has "Streaming cube build is not supported on UI" statements
[KYLIN-2474] - Build snapshot should check lookup PK uniqueness
[KYLIN-2481] - NoRealizationFoundException when there are similar cubes and models
[KYLIN-2487] - IN condition will convert to subquery join when its elements number exceeds 20
[KYLIN-2490] - Couldn't get cube size on Azure HDInsight
[KYLIN-2491] - Cube with error job can be dropped
[KYLIN-2502] - "Create flat table" and "redistribute table" steps don't show YARN application link
[KYLIN-2504] - Clone cube didn't keep the "engine_type" property
[KYLIN-2508] - Trans the time to UTC time when set the range of building cube
[KYLIN-2510] - Unintended NPE in CubeMetaExtractor#requireProject()
[KYLIN-2514] - Joins in data model fail to save when they disorder
[KYLIN-2516] - a table field can not be used as both dimension and measure in kylin 2.0
[KYLIN-2530] - Build cube failed with NoSuchObjectException, hive table not found 'default.kylin_intermediate_xxxx'
[KYLIN-2536] - Replace the use of org.codehaus.jackson
[KYLIN-2537] - HBase Read/Write separation bug introduced by KYLIN-2351
[KYLIN-2539] - Useless filter dimension will impact cuboid selection.
[KYLIN-2541] - Beeline SQL not printed in logs
[KYLIN-2543] - Still build dictionary for TopN group by column even using non-dict encoding
[KYLIN-2555] - minor issues about acl and granted autority

Tasks

[KYLIN-1799] - Add a document to setup kylin on spark engine?
[KYLIN-2293] - Refactor KylinConfig to remove test related code
[KYLIN-2327] - Enable check-style for test code
[KYLIN-2344] - Package spark into Kylin binary package
[KYLIN-2368] - Enable Findbugs plugin
[KYLIN-2386] - Revert KYLIN-2349 and KYLIN-2353
[KYLIN-2521] - upgrade to calcite 1.12.0

v1.6.0 - 2016-11-26

Tag: kylin-1.6.0 This is a major release with better support for using Apache Kafka as data source. Check how to upgrade to do the upgrading.

New Feature

[KYLIN-1726] - Scalable streaming cubing
[KYLIN-1919] - Support Embedded Structure when Parsing Streaming Message
[KYLIN-2055] - Add an encoder for Boolean type
[KYLIN-2067] - Add API to check and fill segment holes
[KYLIN-2079] - add explicit configuration knob for coprocessor timeout
[KYLIN-2088] - Support intersect count for calculation of retention or conversion rates
[KYLIN-2125] - Support using beeline to load hive table metadata

Bug fix

[KYLIN-1565] - Read the kv max size from HBase config
[KYLIN-1820] - Column autocomplete should remove the user input in model designer
[KYLIN-1828] - java.lang.StringIndexOutOfBoundsException in org.apache.kylin.storage.hbase.util.StorageCleanupJob
[KYLIN-1967] - Dictionary rounding can cause IllegalArgumentException in GTScanRangePlanner
[KYLIN-1978] - kylin.sh compatible issue on Ubuntu
[KYLIN-1990] - The SweetAlert at the front page may out of the page if the content is too long.
[KYLIN-2007] - CUBOID_CACHE is not cleared when rebuilding ALL cache
[KYLIN-2012] - more robust approach to hive schema changes
[KYLIN-2024] - kylin TopN only support the first measure
[KYLIN-2027] - Error "connection timed out" occurs when zookeeper's port is set in hbase.zookeeper.quorum of hbase-site.xml
[KYLIN-2028] - find-*-dependency script fail on Mac OS
[KYLIN-2035] - Auto Merge Submit Continuously
[KYLIN-2041] - Wrong parameter definition in Get Hive Tables REST API
[KYLIN-2043] - Rollback httpclient to 4.2.5 to align with Hadoop 2.6/2.7
[KYLIN-2044] - Unclosed DataInputByteBuffer in BitmapCounter#peekLength
[KYLIN-2045] - Wrong argument order in JobInstanceExtractor#executeExtract()
[KYLIN-2047] - Ineffective null check in MetadataManager
[KYLIN-2050] - Potentially ineffective call to close() in QueryCli
[KYLIN-2051] - Potentially ineffective call to IOUtils.closeQuietly()
[KYLIN-2052] - Edit "Top N" measure, the "group by" column wasn't displayed
[KYLIN-2059] - Concurrent build issue in CubeManager.calculateToBeSegments()
[KYLIN-2069] - NPE in LookupStringTable
[KYLIN-2078] - Can't see generated SQL at Web UI
[KYLIN-2084] - Unload sample table failed
[KYLIN-2085] - PrepareStatement return incorrect result in some cases
[KYLIN-2086] - Still report error when there is more than 12 dimensions in one agg group
[KYLIN-2093] - Clear cache in CubeMetaIngester
[KYLIN-2097] - Get 'Column does not exist in row key desc" on cube has TopN measure
[KYLIN-2099] - Import table error of sample table KYLIN_CAL_DT
[KYLIN-2106] - UI bug - Advanced Settings - Rowkeys - new Integer dictionary encoding - could possibly impact also cube metadata
[KYLIN-2109] - Deploy coprocessor only this server own the table
[KYLIN-2110] - Ineffective comparison in BooleanDimEnc#equals()
[KYLIN-2114] - WEB-Global-Dictionary bug fix and improve
[KYLIN-2115] - some extended column query returns wrong answer
[KYLIN-2116] - when hive field delimitor exists in table field values, fields order is wrong
[KYLIN-2119] - Wrong chart value and sort when process scientific notation
[KYLIN-2120] - kylin1.5.4.1 with cdh5.7 cube sql Oops Faild to take action
[KYLIN-2121] - Failed to pull data to PowerBI or Excel on some query
[KYLIN-2127] - UI bug fix for Extend Column
[KYLIN-2130] - QueryMetrics concurrent bug fix
[KYLIN-2132] - Unable to pull data from Kylin Cube ( learn_kylin cube ) to Excel or Power BI for Visualization and some dimensions are not showing up.
[KYLIN-2134] - Kylin will treat empty string as NULL by mistake
[KYLIN-2137] - Failed to run mr job when user put a kafka jar in hive's lib folder
[KYLIN-2138] - Unclosed ResultSet in BeelineHiveClient
[KYLIN-2146] - "Streaming Cluster" page should remove "Margin" inputbox
[KYLIN-2152] - TopN group by column does not distinguish between NULL and ""
[KYLIN-2154] - source table rows will be skipped if TOPN's group column contains NULL values
[KYLIN-2158] - Delete joint dimension not right
[KYLIN-2159] - Redistribution Hive Table Step always requires row_count filename as 000000_0
[KYLIN-2167] - FactDistinctColumnsReducer may get wrong max/min partition col value
[KYLIN-2173] - push down limit leads to wrong answer when filter is loosened
[KYLIN-2178] - CubeDescTest is unstable
[KYLIN-2201] - Cube desc and aggregation group rule combination max check fail
[KYLIN-2226] - Build Dimension Dictionary Error

Improvement

[KYLIN-1042] - Horizontal scalable solution for streaming cubing
[KYLIN-1827] - Send mail notification when runtime exception throws during build/merge cube
[KYLIN-1839] - improvement set classpath before submitting mr job
[KYLIN-1917] - TopN counter merge performance improvement
[KYLIN-1962] - Split kylin.properties into two files
[KYLIN-1999] - Use some compression at UT/IT
[KYLIN-2019] - Add license checker into checkstyle rule
[KYLIN-2033] - Refactor broadcast of metadata change
[KYLIN-2042] - QueryController puts entry in Cache w/o checking QueryCacheEnabled
[KYLIN-2054] - TimedJsonStreamParser should support other time format
[KYLIN-2068] - Import hive comment when sync tables
[KYLIN-2070] - UI changes for allowing concurrent build/refresh/merge
[KYLIN-2073] - Need timestamp info for diagnose
[KYLIN-2075] - TopN measure: need select "constant" + "1" as the SUM|ORDER parameter
[KYLIN-2076] - Improve sample cube and data
[KYLIN-2080] - UI: allow multiple building jobs for the same cube
[KYLIN-2082] - Support to change streaming configuration
[KYLIN-2089] - Make update HBase coprocessor concurrent
[KYLIN-2090] - Allow updating cube level config even the cube is ready
[KYLIN-2091] - Add API to init the start-point (of each parition) for streaming cube
[KYLIN-2095] - Hive mr job use overrided MR job configuration by cube properties
[KYLIN-2098] - TopN support query UHC column without sorting by sum value
[KYLIN-2100] - Allow cube to override HIVE job configuration by properties
[KYLIN-2108] - Support usage of schema name "default" in SQL
[KYLIN-2111] - only allow columns from Model dimensions when add group by column to TOP_N
[KYLIN-2112] - Allow a column be a dimension as well as "group by" column in TopN measure
[KYLIN-2113] - Need sort by columns in SQLDigest
[KYLIN-2118] - allow user view CubeInstance json even cube is ready
[KYLIN-2122] - Move the partition offset calculation before submitting job
[KYLIN-2126] - use column name as default dimension name when auto generate dimension for lookup table
[KYLIN-2140] - rename packaged js with different name when build
[KYLIN-2143] - allow more options from Extended Columns,COUNT_DISTINCT,RAW_TABLE
[KYLIN-2162] - Improve the cube validation error message
[KYLIN-2221] - rethink on KYLIN-1684
[KYLIN-2083] - more RAM estimation test for MeasureAggregator and GTAggregateScanner
[KYLIN-2105] - add QueryId
[KYLIN-1321] - Add derived checkbox for lookup table columns on Auto Generate Dimensions panel
[KYLIN-1995] - Upgrade MapReduce properties which are deprecated

Task

[KYLIN-2072] - Cleanup old streaming code
[KYLIN-2081] - UI change to support embeded streaming message
[KYLIN-2171] - Release 1.6.0

v1.5.4.1 - 2016-09-28

Tag: kylin-1.5.4.1 This version fixes two major bugs introduced in 1.5.4; The metadata and HBase coprocessor is compatible with 1.5.4.

Bug fix

[KYLIN-2010] - Date dictionary return wrong SQL result
[KYLIN-2026] - NPE occurs when build a cube without partition column
[KYLIN-2032] - Cube build failed when partition column isn't in dimension list

v1.5.4 - 2016-09-15

Tag: kylin-1.5.4 This version includes bug fixs/enhancements as well as new features; It is backward compatiple with v1.5.3; While after upgrade, you still need update coprocessor, refer to How to update coprocessor.

New Feature

[KYLIN-1732] - Support Window Function
[KYLIN-1767] - UI for TopN: specify encoding and multiple "group by"
[KYLIN-1849] - Search cube by name in Web UI
[KYLIN-1908] - Collect Metrics to JMX
[KYLIN-1921] - Support Grouping Funtions
[KYLIN-1964] - Add a companion tool of CubeMetaExtractor for cube importing

Bug

[KYLIN-962] - [UI] Cube Designer can't drag rowkey normally
[KYLIN-1194] - Filter(CubeName) on Jobs/Monitor page works only once
[KYLIN-1488] - When modifying a model, Save after deleting a lookup table. The internal error will pop up.
[KYLIN-1760] - Save query hits org.apache.hadoop.hbase.TableNotFoundException: kylin_metadata_user
[KYLIN-1808] - unload non existing table cause NPE
[KYLIN-1834] - java.lang.IllegalArgumentException: Value not exists! - in Step 4 - Build Dimension Dictionary
[KYLIN-1883] - Consensus Problem when running the tool, MetadataCleanupJob
[KYLIN-1889] - Didn't deal with the failure of renaming folder in hdfs when running the tool CubeMigrationCLI
[KYLIN-1929] - Error to load slow query in "Monitor" page for non-admin user
[KYLIN-1933] - Deploy in cluster mode, the "query" node report "scheduler has not been started" every second
[KYLIN-1934] - 'Value not exist' During Cube Merging Caused by Empty Dict
[KYLIN-1939] - Linkage error while executing any queries
[KYLIN-1942] - Models are missing after change project's name
[KYLIN-1953] - Error handling for diagnosis
[KYLIN-1956] - Can't query from child cube of a hybrid cube after its status changed from disabled to enabled
[KYLIN-1961] - Project name is always constant instead of real project name in email notification
[KYLIN-1970] - System Menu UI ACL issue
[KYLIN-1972] - Access denied when query seek to hybrid
[KYLIN-1973] - java.lang.NegativeArraySizeException when Build Dimension Dictionary
[KYLIN-1982] - CubeMigrationCLI: associate model with project
[KYLIN-1986] - CubeMigrationCLI: make global dictionary unique
[KYLIN-1992] - Clear ThreadLocal Contexts when query failed before scaning HBase
[KYLIN-1996] - Keep original column order when designing cube
[KYLIN-1998] - Job engine lock is not release at shutdown
[KYLIN-2003] - error start time at query result page
[KYLIN-2005] - Move all storage side behavior hints to GTScanRequest

Improvement

[KYLIN-672] - Add Env and Project Info in job email notification
[KYLIN-1702] - The Key of the Snapshot to the related lookup table may be not informative
[KYLIN-1855] - Should exclude those joins in whose related lookup tables no dimensions are used in cube
[KYLIN-1858] - Remove all InvertedIndex(Streaming purpose) related codes and tests
[KYLIN-1866] - Add tip for field at 'Add Streaming' table page.
[KYLIN-1867] - Upgrade dependency libraries
[KYLIN-1874] - Make roaring bitmap version determined
[KYLIN-1898] - Upgrade to Avatica 1.8 or higher
[KYLIN-1904] - WebUI for GlobalDictionary
[KYLIN-1906] - Add more comments and default value for kylin.properties
[KYLIN-1910] - Support Separate HBase Cluster with NN HA and Kerberos Authentication
[KYLIN-1920] - Add view CubeInstance json function
[KYLIN-1922] - Improve the logic to decide whether to pre aggregate on Region server
[KYLIN-1923] - Add access controller to query
[KYLIN-1924] - Region server metrics: replace int type for long type for scanned row count
[KYLIN-1925] - Do not allow cross project clone for cube
[KYLIN-1926] - Loosen the constraint on FK-PK data type matching
[KYLIN-1936] - Improve enable limit logic (exactAggregation is too strict)
[KYLIN-1940] - Add owner for DataModel
[KYLIN-1941] - Show submitter for slow query
[KYLIN-1954] - BuildInFunctionTransformer should be executed per CubeSegmentScanner
[KYLIN-1963] - Delegate the loading of certain package (like slf4j) to tomcat's parent classloader
[KYLIN-1965] - Check duplicated measure name
[KYLIN-1966] - Refactor IJoinedFlatTableDesc
[KYLIN-1979] - Move hackNoGroupByAggregation to cube-based storage implementations
[KYLIN-1984] - Don't use compression in packaging configuration
[KYLIN-1985] - SnapshotTable should only keep the columns described in tableDesc
[KYLIN-1997] - Add pivot feature back in query result page
[KYLIN-2004] - Make the creating intermediate hive table steps configurable (two options)

v1.5.3 - 2016-07-28

Tag: kylin-1.5.3 This version includes many bug fixs/enhancements as well as new features; It is backward compatiple with v1.5.2; But after upgrade, you need to update coprocessor, refer to How to update coprocessor.

New Feature

[KYLIN-1478] - TopN measure should support non-dictionary encoding for ultra high cardinality
[KYLIN-1693] - Support multiple group-by columns for TOP_N meausre
[KYLIN-1752] - Add an option to fail cube build job when source table is empty
[KYLIN-1756] - Allow user to run MR jobs against different Hadoop queues

Bug fix

[KYLIN-1499] - Couldn't save query, error in backend
[KYLIN-1568] - Calculate row value buffer size instead of hard coded ROWVALUE_BUFFER_SIZE
[KYLIN-1645] - Exception inside coprocessor should report back to the query thread
[KYLIN-1646] - Column appeared twice if it was declared as both dimension and measure
[KYLIN-1676] - High CPU in TrieDictionary due to incorrect use of HashMap
[KYLIN-1679] - bin/get-properties.sh cannot get property which contains space or equals sign
[KYLIN-1684] - query on table "kylin_sales" return empty resultset after cube "kylin_sales_cube" which generated by sample.sh is ready
[KYLIN-1694] - make multiply coefficient configurable when estimating cuboid size
[KYLIN-1695] - Skip cardinality calculation job when loading hive table
[KYLIN-1703] - The not-thread-safe ToolRunner.run() will cause concurrency issue in job engine
[KYLIN-1704] - When load empty snapshot, NULL Pointer Exception occurs
[KYLIN-1723] - GTAggregateScanner$Dump.flush() must not write the WHOLE metrics buffer
[KYLIN-1738] - MRJob Id is not saved to kylin jobs if MR job is killed
[KYLIN-1742] - kylin.sh should always set KYLIN_HOME to an absolute path
[KYLIN-1755] - TopN Measure IndexOutOfBoundsException
[KYLIN-1760] - Save query hits org.apache.hadoop.hbase.TableNotFoundException: kylin_metadata_user
[KYLIN-1762] - Query threw NPE with 3 or more join conditions
[KYLIN-1769] - There is no response when click "Property" button at Cube Designer
[KYLIN-1777] - Streaming cube build shouldn't check working segment
[KYLIN-1780] - Potential issue in SnapshotTable.equals()
[KYLIN-1781] - kylin.properties encoding error while contain chinese prop key or value
[KYLIN-1783] - Can't add override property at cube design 'Configuration Overwrites' step.
[KYLIN-1785] - NoSuchElementException when Mandatory Dimensions contains all Dimensions
[KYLIN-1787] - Properly deal with limit clause in CubeHBaseEndpointRPC (SELECT * problem)
[KYLIN-1788] - Allow arbitrary number of mandatory dimensions in one aggregation group
[KYLIN-1789] - Couldn't use View as Lookup when join type is "inner"
[KYLIN-1795] - bin/sample.sh doesn't work when configured hive client is beeline
[KYLIN-1800] - IllegalArgumentExceptio: Too many digits for NumberDictionary: -0.009999999999877218. Expect 19 digits before decimal point at max.
[KYLIN-1803] - ExtendedColumn Measure Encoding with Non-ascii Characters
[KYLIN-1811] - Error step may be skipped sometimes when resume a cube job
[KYLIN-1816] - More than one base KylinConfig exist in spring JVM
[KYLIN-1817] - No result from JDBC with Date filter in prepareStatement
[KYLIN-1838] - Fix sample cube definition
[KYLIN-1848] - Can't sort cubes by any field in Web UI
[KYLIN-1862] - "table not found" in "Build Dimension Dictionary" step
[KYLIN-1879] - RestAPI /api/jobs always returns 0 for exec_start_time and exec_end_time fields
[KYLIN-1882] - it report can't find the intermediate table in '#4 Step Name: Build Dimension Dictionary' when use hive view as lookup table
[KYLIN-1896] - JDBC support mybatis
[KYLIN-1905] - Wrong Default Date in Cube Build Web UI
[KYLIN-1909] - Wrong access control to rest get cubes
[KYLIN-1911] - NPE when extended column has NULL value
[KYLIN-1912] - Create Intermediate Flat Hive Table failed when using beeline
[KYLIN-1913] - query log printed abnormally if the query contains "\r" (not "\r\n")
[KYLIN-1918] - java.lang.UnsupportedOperationException when unload hive table

Improvement

[KYLIN-1319] - Find a better way to check hadoop job status
[KYLIN-1379] - More stable and functional precise count distinct implements after KYLIN-1186
[KYLIN-1656] - Improve performance of MRv2 engine by making each mapper handles a configured number of records
[KYLIN-1657] - Add new configuration kylin.job.mapreduce.min.reducer.number
[KYLIN-1669] - Deprecate the "Capacity" field from DataModel
[KYLIN-1677] - Distribute source data by certain columns when creating flat table
[KYLIN-1705] - Global (and more scalable) dictionary
[KYLIN-1706] - Allow cube to override MR job configuration by properties
[KYLIN-1714] - Make job/source/storage engines configurable from kylin.properties
[KYLIN-1717] - Make job engine scheduler configurable
[KYLIN-1718] - Grow ByteBuffer Dynamically in Cube Building and Query
[KYLIN-1719] - Add config in scan request to control compress the query result or not
[KYLIN-1724] - Support Amazon EMR
[KYLIN-1725] - Use KylinConfig inside coprocessor
[KYLIN-1728] - Introduce dictionary metadata
[KYLIN-1731] - allow non-admin user to edit 'Advenced Setting' step in CubeDesigner
[KYLIN-1747] - Calculate all 0 (except mandatory) cuboids
[KYLIN-1749] - Allow mandatory only cuboid
[KYLIN-1751] - Make kylin log configurable
[KYLIN-1766] - CubeTupleConverter.translateResult() is slow due to date conversion
[KYLIN-1775] - Add Cube Migrate Support for Global Dictionary
[KYLIN-1782] - API redesign for CubeDesc
[KYLIN-1786] - Frontend work for KYLIN-1313 (extended columns as measure)
[KYLIN-1792] - behaviours for non-aggregated queries
[KYLIN-1805] - It's easily got stuck when deleting HTables during running the StorageCleanupJob
[KYLIN-1815] - Cleanup package size
[KYLIN-1818] - change kafka dependency to provided
[KYLIN-1821] - Reformat all of the java files and enable checkstyle to enforce code formatting
[KYLIN-1823] - refactor kylin-server packaging
[KYLIN-1846] - minimize dependencies of JDBC driver
[KYLIN-1884] - Reload metadata automatically after migrating cube
[KYLIN-1894] - GlobalDictionary may corrupt when server suddenly crash
[KYLIN-1744] - Separate concepts of source offset and date range on cube segments
[KYLIN-1654] - Upgrade httpclient dependency
[KYLIN-1774] - Update Kylin's tomcat version to 7.0.69
[KYLIN-1861] - Hive may fail to create flat table with "GC overhead error"

v1.5.2.1 - 2016-06-07

Tag: kylin-1.5.2.1

This is a hot-fix version on v1.5.2, no new feature introduced, please upgrade to this version;

Bug fix

[KYLIN-1758] - createLookupHiveViewMaterializationStep will create intermediate table for fact table
[KYLIN-1739] - kylin_job_conf_inmem.xml can impact non-inmem MR job

v1.5.2 - 2016-05-26

Tag: kylin-1.5.2

This version is backward compatiple with v1.5.1. But after upgrade to v1.5.2 from v1.5.1, you need to update coprocessor, refer to How to update coprocessor.

Highlights

[KYLIN-1077] - Support Hive View as Lookup Table
[KYLIN-1515] - Make Kylin run on MapR
[KYLIN-1600] - Download diagnosis zip from GUI
[KYLIN-1672] - support kylin on cdh 5.7

New Feature

[KYLIN-1016] - Count distinct on any dimension should work even not a predefined measure
[KYLIN-1077] - Support Hive View as Lookup Table
[KYLIN-1441] - Display time column as partition column
[KYLIN-1515] - Make Kylin run on MapR
[KYLIN-1600] - Download diagnosis zip from GUI
[KYLIN-1672] - support kylin on cdh 5.7

Improvement

[KYLIN-869] - Enhance mail notification
[KYLIN-955] - HiveColumnCardinalityJob should use configurations in conf/kylin_job_conf.xml
[KYLIN-1313] - Enable deriving dimensions on non PK/FK
[KYLIN-1323] - Improve performance of converting data to hfile
[KYLIN-1340] - Tools to extract all cube/hybrid/project related metadata to facilitate diagnosing/debugging/* sharing
[KYLIN-1381] - change RealizationCapacity from three profiles to specific numbers
[KYLIN-1391] - quicker and better response to v2 storage engine's rpc timeout exception
[KYLIN-1418] - Memory hungry cube should select LAYER and INMEM cubing smartly
[KYLIN-1432] - For GUI, to add one option "yyyy-MM-dd HH:MM:ss" for Partition Date Column
[KYLIN-1453] - cuboid sharding based on specific column
[KYLIN-1487] - attach a hyperlink to introduce new aggregation group
[KYLIN-1526] - Move query cache back to query controller level
[KYLIN-1542] - Hfile owner is not hbase
[KYLIN-1544] - Make hbase encoding and block size configurable just like hbase compression
[KYLIN-1561] - Refactor storage engine(v2) to be extension friendly
[KYLIN-1566] - Add and use a separate kylin_job_conf.xml for in-mem cubing
[KYLIN-1567] - Front-end work for KYLIN-1557
[KYLIN-1578] - Coprocessor thread voluntarily stop itself when it reaches timeout
[KYLIN-1579] - IT preparation classes like BuildCubeWithEngine should exit with status code upon build * exception
[KYLIN-1580] - Use 1 byte instead of 8 bytes as column indicator in fact distinct MR job
[KYLIN-1584] - Specify region cut size in cubedesc and leave the RealizationCapacity in model as a hint
[KYLIN-1585] - make MAX_HBASE_FUZZY_KEYS in GTScanRangePlanner configurable
[KYLIN-1587] - show cube level configuration overwrites properties in CubeDesigner
[KYLIN-1591] - enabling different block size setting for small column families
[KYLIN-1599] - Add "isShardBy" flag in rowkey panel
[KYLIN-1601] - Need not to shrink scan cache when hbase rows can be large
[KYLIN-1602] - User could dump hbase usage for diagnosis
[KYLIN-1614] - Bring more information in diagnosis tool
[KYLIN-1621] - Use deflate level 1 to enable compression "on the fly"
[KYLIN-1623] - Make the hll precision for data samping configurable
[KYLIN-1624] - HyperLogLogPlusCounter will become inaccurate when there're billions of entries
[KYLIN-1625] - GC log overwrites old one after restart Kylin service
[KYLIN-1627] - add backdoor toggle to dump binary cube storage response for further analysis
[KYLIN-1731] - allow non-admin user to edit 'Advenced Setting' step in CubeDesigner

Bug fix

[KYLIN-989] - column width is too narrow for timestamp field
[KYLIN-1197] - cube data not updated after purge
[KYLIN-1305] - Can not get more than one system admin email in config
[KYLIN-1551] - Should check and ensure TopN measure has two parameters specified
[KYLIN-1563] - Unsafe check of initiated in HybridInstance#init()
[KYLIN-1569] - Select any column when adding a custom aggregation in GUI
[KYLIN-1574] - Unclosed ResultSet in QueryService#getMetadata()
[KYLIN-1581] - NPE in Job engine when execute MR job
[KYLIN-1593] - Agg group info will be blank when trying to edit cube
[KYLIN-1595] - columns in metric could also be in filter/groupby
[KYLIN-1596] - UT fail, due to String encoding CharsetEncoder mismatch
[KYLIN-1598] - cannot run complete UT at windows dev machine
[KYLIN-1604] - Concurrent write issue on hdfs when deploy coprocessor
[KYLIN-1612] - Cube is ready but insight tables not result
[KYLIN-1615] - UT 'HiveCmdBuilderTest' fail on 'testBeeline'
[KYLIN-1619] - Can't find any realization coursed by Top-N measure
[KYLIN-1622] - sql not executed and report topN error
[KYLIN-1631] - Web UI of TopN, "group by" column couldn't be a dimension column
[KYLIN-1634] - Unclosed OutputStream in SSHClient#scpFileToLocal()
[KYLIN-1637] - Sample cube build error
[KYLIN-1638] - Unclosed HBaseAdmin in ToolUtil#getHBaseMetaStoreId()
[KYLIN-1639] - Wrong logging of JobID in MapReduceExecutable.java
[KYLIN-1643] - Kylin's hll counter count "NULL" as a value
[KYLIN-1647] - Purge a cube, and then build again, the start date is not updated
[KYLIN-1650] - java.io.IOException: Filesystem closed - in Cube Build Step 2 (MapR)
[KYLIN-1655] - function name 'getKylinPropertiesAsInputSteam' misspelt
[KYLIN-1660] - Streaming/kafka config not match with table name
[KYLIN-1662] - tableName got truncated during request mapping for /tables/tableName
[KYLIN-1666] - Should check project selection before add a stream table
[KYLIN-1667] - Streaming table name should allow enter "DB.TABLE" format
[KYLIN-1673] - make sure metadata in 1.5.2 compatible with 1.5.1
[KYLIN-1678] - MetaData clean just clean FINISHED and DISCARD jobs,but job correct status is SUCCEED
[KYLIN-1685] - error happens while execute a sql contains '?' using Statement
[KYLIN-1688] - Illegal char on result dataset table
[KYLIN-1721] - KylinConfigExt lost base properties when store into file
[KYLIN-1722] - IntegerDimEnc serialization exception inside coprocessor

v1.5.1 - 2016-04-13

Tag: kylin-1.5.1

This version is backward compatiple with v1.5.0. But after upgrade to v1.5.1 from v1.5.0, you need to update coprocessor, refer to How to update coprocessor.

Highlights

[KYLIN-1122] - Kylin support detail data query from fact table
[KYLIN-1492] - Custom dimension encoding
[KYLIN-1495] - Metadata upgrade from 1.0~1.3 to 1.5, including metadata correction, relevant tools, etc.
[KYLIN-1534] - Cube specific config, override global kylin.properties
[KYLIN-1546] - Tool to dump information for diagnosis

New Feature

[KYLIN-1122] - Kylin support detail data query from fact table
[KYLIN-1378] - Add UI for TopN measure
[KYLIN-1492] - Custom dimension encoding
[KYLIN-1495] - Metadata upgrade from 1.0~1.3 to 1.5, including metadata correction, relevant tools, etc.
[KYLIN-1501] - Run some classes at the beginning of kylin server startup
[KYLIN-1503] - Print version information with kylin.sh
[KYLIN-1531] - Add smoke test scripts
[KYLIN-1534] - Cube specific config, override global kylin.properties
[KYLIN-1540] - REST API for deleting segment
[KYLIN-1541] - IntegerDimEnc, custom dimension encoding for integers
[KYLIN-1546] - Tool to dump information for diagnosis
[KYLIN-1550] - Persist some recent bad query

Improvement

[KYLIN-1490] - Use InstallShield 2015 to generate ODBC Driver setup files
[KYLIN-1498] - cube desc signature not calculated correctly
[KYLIN-1500] - streaming_fillgap cause out of memory
[KYLIN-1502] - When cube is not empty, only signature consistent cube desc updates are allowed
[KYLIN-1504] - Use NavigableSet to store rowkey and use prefix filter to check resource path prefix instead String comparison on tomcat side
[KYLIN-1505] - Combine guava filters with Predicates.and
[KYLIN-1543] - GTFilterScanner performance tuning
[KYLIN-1557] - Enhance the check on aggregation group dimension number

Bug fix

[KYLIN-1373] - need to encode export query url to get right result in query page
[KYLIN-1434] - Kylin Job Monitor API: /kylin/api/jobs is too slow in large kylin deployment
[KYLIN-1472] - Export csv get error when there is a plus sign in the sql
[KYLIN-1486] - java.lang.IllegalArgumentException: Too many digits for NumberDictionary
[KYLIN-1491] - Should return base cuboid as valid cuboid if no aggregation group matches
[KYLIN-1493] - make ExecutableManager.getInstance thread safe
[KYLIN-1497] - Make three getInstance thread safe
[KYLIN-1507] - Couldn't find hive dependency jar on some platform like CDH
[KYLIN-1513] - Time partitioning doesn't work across multiple days
[KYLIN-1514] - MD5 validation of Tomcat does not work when package tar
[KYLIN-1521] - Couldn't refresh a cube segment whose start time is before 1970-01-01
[KYLIN-1522] - HLLC is incorrect when result is feed from cache
[KYLIN-1524] - Get "java.lang.Double cannot be cast to java.lang.Long" error when Top-N metris data type is BigInt
[KYLIN-1527] - Columns with all NULL values can't be queried
[KYLIN-1537] - Failed to create flat hive table, when name is too long
[KYLIN-1538] - DoubleDeltaSerializer cause obvious error after deserialize and serialize
[KYLIN-1553] - Cannot find rowkey column "COL_NAME" in cube CubeDesc
[KYLIN-1564] - Unclosed table in BuildCubeWithEngine#checkHFilesInHBase()
[KYLIN-1569] - Select any column when adding a custom aggregation in GUI

v1.5.0 - 2016-03-12

Tag: kylin-1.5.0

This version is not backward compatible. The format of cube and metadata has been refactored in order to get times of performance improvement. We recommend this version, but does not suggest upgrade from previous deployment directly. A clean and new deployment of this version is strongly recommended. If you have to upgrade from previous deployment, an upgrade guide will be provided by community later.

Highlights

[KYLIN-875] - A plugin-able architecture, to allow alternative cube engine / storage engine / data source.
[KYLIN-1245] - A better MR cubing algorithm, about 1.5 times faster by comparing hundreds of jobs.
[KYLIN-942] - A better storage engine, makes query roughly 2 times faster (especially for slow queries) by comparing tens of thousands sqls.
[KYLIN-738] - Streaming cubing EXPERIMENTAL support, source from kafka, build cube in-mem at minutes interval.
[KYLIN-242] - Redesign aggregation group, support of 20+ dimensions made easy.
[KYLIN-976] - Custom aggregation types (or UDF in other words).
[KYLIN-943] - TopN aggregation type.
[KYLIN-1065] - ODBC compatible with Tableau 9.1, MS Excel, MS PowerBI.
[KYLIN-1219] - Kylin support SSO with Spring SAML.

New Feature

[KYLIN-528] - Build job flow for Inverted Index building
[KYLIN-579] - Unload table from Kylin
[KYLIN-596] - Support Excel and Power BI
[KYLIN-599] - Near real-time support
[KYLIN-607] - More efficient cube building
[KYLIN-609] - Add Hybrid as a federation of Cube and Inverted-index realization
[KYLIN-625] - Create GridTable, a data structure that abstracts vertical and horizontal partition of a table
[KYLIN-728] - IGTStore implementation which use disk when memory runs short
[KYLIN-738] - StreamingOLAP
[KYLIN-749] - support timestamp type in II and cube
[KYLIN-774] - Automatically merge cube segments
[KYLIN-868] - add a metadata backup/restore script in bin folder
[KYLIN-886] - Data Retention for streaming data
[KYLIN-906] - cube retention
[KYLIN-943] - Approximate TopN supported by Cube
[KYLIN-986] - Generalize Streaming scripts and put them into code repository
[KYLIN-1219] - Kylin support SSO with Spring SAML
[KYLIN-1277] - Upgrade tool to put old-version cube and new-version cube into a hybrid model
[KYLIN-1458] - Checking the consistency of cube segment host with the environment after cube migration
[KYLIN-976] - Support Custom Aggregation Types
[KYLIN-1054] - Support Hive client Beeline
[KYLIN-1128] - Clone Cube Metadata
[KYLIN-1186] - Support precise Count Distinct using bitmap (under limited conditions)
[KYLIN-1458] - Checking the consistency of cube segment host with the environment after cube migration
[KYLIN-1483] - Command tool to visualize all cuboids in a cube/segment

Improvement

[KYLIN-225] - Support edit "cost" of cube
[KYLIN-410] - table schema not expand when clicking the database text
[KYLIN-589] - Cleanup Intermediate hive table after cube build
[KYLIN-623] - update Kylin UI Style to latest AdminLTE
[KYLIN-633] - Support Timestamp for cube partition
[KYLIN-649] - move the cache layer from service tier back to storage tier
[KYLIN-655] - Migrate cube storage (query side) to use GridTable API
[KYLIN-663] - Push time condition down to ii endpoint
[KYLIN-668] - Out of memory in mapper when building cube in mem
[KYLIN-671] - Implement fine grained cache for cube and ii
[KYLIN-674] - IIEndpoint return metrics as well
[KYLIN-675] - cube&model designer refactor
[KYLIN-678] - optimize RowKeyColumnIO
[KYLIN-697] - Reorganize all test cases to unit test and integration tests
[KYLIN-702] - When Kylin create the flat hive table, it generates large number of small files in HDFS
[KYLIN-708] - replace BitSet for AggrKey
[KYLIN-712] - some enhancement after code review
[KYLIN-717] - optimize OLAPEnumerator.convertCurrentRow()
[KYLIN-718] - replace aliasMap in storage context with a clear specified return column list
[KYLIN-719] - bundle statistics info in endpoint response
[KYLIN-720] - Optimize endpoint's response structure to suit with no-dictionary data
[KYLIN-721] - streaming cli support third-party streammessage parser
[KYLIN-726] - add remote cli port configuration for KylinConfig
[KYLIN-729] - IIEndpoint eliminate the non-aggregate routine
[KYLIN-734] - Push cache layer to each storage engine
[KYLIN-752] - Improved IN clause performance
[KYLIN-753] - Make the dependency on hbase-common to "provided"
[KYLIN-755] - extract copying libs from prepare.sh so that it can be reused
[KYLIN-760] - Improve the hasing performance in Sampling cuboid size
[KYLIN-772] - Continue cube job when hive query return empty resultset
[KYLIN-773] - performance is slow list jobs
[KYLIN-783] - update hdp version in test cases to 2.2.4
[KYLIN-796] - Add REST API to trigger storage cleanup/GC
[KYLIN-809] - Streaming cubing allow multiple kafka clusters/topics
[KYLIN-816] - Allow gap in cube segments, for streaming case
[KYLIN-822] - list cube overview in one page
[KYLIN-823] - replace fk on fact table on rowkey & aggregation group generate
[KYLIN-838] - improve performance of job query
[KYLIN-844] - add backdoor toggles to control query behavior
[KYLIN-845] - Enable coprocessor even when there is memory hungry distinct count
[KYLIN-858] - add snappy compression support
[KYLIN-866] - Confirm with user when he selects empty segments to merge
[KYLIN-869] - Enhance mail notification
[KYLIN-870] - Speed up hbase segments info by caching
[KYLIN-871] - growing dictionary for streaming case
[KYLIN-874] - script for fill streaming gap automatically
[KYLIN-875] - Decouple with Hadoop to allow alternative Input / Build Engine / Storage
[KYLIN-879] - add a tool to collect orphan hbases
[KYLIN-880] - Kylin should change the default folder from /tmp to user configurable destination
[KYLIN-881] - Upgrade Calcite to 1.3.0
[KYLIN-882] - check access to kylin.hdfs.working.dir
[KYLIN-883] - Using configurable option for Hive intermediate tables created by Kylin job
[KYLIN-893] - Remove the dependency on quartz and metrics
[KYLIN-895] - Add "retention_range" attribute for cube instance, and automatically drop the oldest segment when exceeds retention
[KYLIN-896] - Clean ODBC code, add them into main repository and write docs to help compiling
[KYLIN-901] - Add tool for cleanup Kylin metadata storage
[KYLIN-902] - move streaming related parameters into StreamingConfig
[KYLIN-909] - Adapt GTStore to hbase endpoint
[KYLIN-919] - more friendly UI for 0.8
[KYLIN-922] - Enforce same code style for both intellij and eclipse user
[KYLIN-926] - Make sure Kylin leaves no garbage files in local OS and HDFS/HBASE
[KYLIN-927] - Real time cubes merging skipping gaps
[KYLIN-933] - friendly UI to use data model
[KYLIN-938] - add friendly tip to page when rest request failed
[KYLIN-942] - Cube parallel scan on Hbase
[KYLIN-956] - Allow users to configure hbase compression algorithm in kylin.properties
[KYLIN-957] - Support HBase in a separate cluster
[KYLIN-960] - Split storage module to core-storage and storage-hbase
[KYLIN-973] - add a tool to analyse streaming output logs
[KYLIN-984] - Behavior change in streaming data consuming
[KYLIN-987] - Rename 0.7-staging and 0.8 branch
[KYLIN-1014] - Support kerberos authentication while getting status from RM
[KYLIN-1018] - make TimedJsonStreamParser default parser
[KYLIN-1019] - Remove v1 cube model classes from code repository
[KYLIN-1021] - upload dependent jars of kylin to HDFS and set tmpjars
[KYLIN-1025] - Save cube change is very slow
[KYLIN-1036] - Code Clean, remove code which never used at front end
[KYLIN-1041] - ADD Streaming UI
[KYLIN-1048] - CPU and memory killer in Cuboid.findById()
[KYLIN-1058] - Remove "right join" during model creation
[KYLIN-1061] - "kylin.sh start" should check whether kylin has already been running
[KYLIN-1064] - restore disabled queries in KylinQueryTest.testVerifyQuery
[KYLIN-1065] - ODBC driver support tableau 9.1
[KYLIN-1068] - Optimize the memory footprint for TopN counter
[KYLIN-1069] - update tip for 'Partition Column' on UI
[KYLIN-1074] - Load hive tables with selecting mode
[KYLIN-1095] - Update AdminLTE to latest version
[KYLIN-1096] - Deprecate minicluster
[KYLIN-1099] - Support dictionary of cardinality over 10 millions
[KYLIN-1101] - Allow "YYYYMMDD" as a date partition column
[KYLIN-1105] - Cache in AbstractRowKeyEncoder.createInstance() is useless
[KYLIN-1116] - Use local dictionary for InvertedIndex batch building
[KYLIN-1119] - refine find-hive-dependency.sh to correctly get hcatalog path
[KYLIN-1126] - v2 storage(for parallel scan) backward compatibility with v1 storage
[KYLIN-1135] - Pscan use share thread pool
[KYLIN-1136] - Distinguish fast build mode and complete build mode
[KYLIN-1139] - Hive job not starting due to error "conflicting lock present for default mode EXCLUSIVE "
[KYLIN-1149] - When yarn return an incomplete job tracking URL, Kylin will fail to get job status
[KYLIN-1154] - Load job page is very slow when there are a lot of history job
[KYLIN-1157] - CubeMigrationCLI doesn't copy ACL
[KYLIN-1160] - Set default logger appender of log4j for JDBC
[KYLIN-1161] - Rest API /api/cubes?cubeName= is doing fuzzy match instead of exact match
[KYLIN-1162] - Enhance HadoopStatusGetter to be compatible with YARN-2605
[KYLIN-1190] - Make memory budget per query configurable
[KYLIN-1211] - Add 'Enable Cache' button in System page
[KYLIN-1234] - Cube ACL does not work
[KYLIN-1235] - allow user to select dimension column as options when edit COUNT_DISTINCT measure
[KYLIN-1237] - Revisit on cube size estimation
[KYLIN-1239] - attribute each htable with team contact and owner name
[KYLIN-1244] - In query window, enable fast copy&paste by double clicking tables/columns' names.
[KYLIN-1245] - Switch between layer cubing and in-mem cubing according to stats
[KYLIN-1246] - get cubes API update - offset,limit not required
[KYLIN-1251] - add toggle event for tree label
[KYLIN-1259] - Change font/background color of job progress
[KYLIN-1265] - Make sure 1.4-rc query is no slower than 1.0
[KYLIN-1266] - Tune release package size
[KYLIN-1267] - Check Kryo performance when spilling aggregation cache
[KYLIN-1268] - Fix 2 kylin logs
[KYLIN-1270] - improve TimedJsonStreamParser to support month_start,quarter_start,year_start
[KYLIN-1281] - Add "partition_date_end", and move "partition_date_start" into cube descriptor
[KYLIN-1283] - Replace GTScanRequest's SerDer form Kryo to manual
[KYLIN-1287] - UI update for streaming build action
[KYLIN-1297] - Diagnose query performance issues in 1.4 branch
[KYLIN-1301] - fix segment pruning failure
[KYLIN-1308] - query storage v2 enable parallel cube visiting
[KYLIN-1312] - Enhance DeployCoprocessorCLI to support Cube level filter
[KYLIN-1317] - Kill underlying running hadoop job while discard a job
[KYLIN-1318] - enable gc log for kylin server instance
[KYLIN-1323] - Improve performance of converting data to hfile
[KYLIN-1327] - Tool for batch updating host information of htables
[KYLIN-1333] - Kylin Entity Permission Control
[KYLIN-1334] - allow truncating string for fixed length dimensions
[KYLIN-1341] - Display JSON of Data Model in the dialog
[KYLIN-1350] - hbase Result.binarySearch is found to be problematic in concurrent environments
[KYLIN-1365] - Kylin ACL enhancement
[KYLIN-1368] - JDBC Driver is not generic to restAPI json result
[KYLIN-1424] - Should support multiple selection in picking up dimension/measure column step in data model wizard
[KYLIN-1438] - auto generate aggregation group
[KYLIN-1474] - expose list, remove and cat in metastore.sh
[KYLIN-1475] - Inject ehcache manager for any test case that will touch ehcache manager
[KYLIN-242] - Redesign aggregation group
[KYLIN-770] - optimize memory usage for GTSimpleMemStore GTAggregationScanner
[KYLIN-955] - HiveColumnCardinalityJob should use configurations in conf/kylin_job_conf.xml
[KYLIN-980] - FactDistinctColumnsJob to support high cardinality columns
[KYLIN-1079] - Manager large number of entries in metadata store
[KYLIN-1082] - Hive dependencies should be add to tmpjars
[KYLIN-1201] - Enhance project level ACL
[KYLIN-1222] - restore testing v1 query engine in case need it as a fallback for v2
[KYLIN-1232] - Refine ODBC Connection UI
[KYLIN-1237] - Revisit on cube size estimation
[KYLIN-1239] - attribute each htable with team contact and owner name
[KYLIN-1245] - Switch between layer cubing and in-mem cubing according to stats
[KYLIN-1265] - Make sure 1.4-rc query is no slower than 1.0
[KYLIN-1266] - Tune release package size
[KYLIN-1270] - improve TimedJsonStreamParser to support month_start,quarter_start,year_start
[KYLIN-1283] - Replace GTScanRequest's SerDer form Kryo to manual
[KYLIN-1297] - Diagnose query performance issues in 1.4 branch
[KYLIN-1301] - fix segment pruning failure
[KYLIN-1308] - query storage v2 enable parallel cube visiting
[KYLIN-1318] - enable gc log for kylin server instance
[KYLIN-1327] - Tool for batch updating host information of htables
[KYLIN-1343] - Upgrade calcite version to 1.6
[KYLIN-1350] - hbase Result.binarySearch is found to be problematic in concurrent environments
[KYLIN-1366] - Bind metadata version with release version
[KYLIN-1389] - Formatting ODBC Drive C++ code
[KYLIN-1405] - Aggregation group validation
[KYLIN-1465] - Beautify kylin log to convenience both production trouble shooting and CI debuging
[KYLIN-1475] - Inject ehcache manager for any test case that will touch ehcache manager

Bug

[KYLIN-404] - Can't get cube source record size.
[KYLIN-457] - log4j error and dup lines in kylin.log
[KYLIN-521] - No verification even if join condition is invalid
[KYLIN-632] - "kylin.sh stop" doesn't check whether KYLIN_HOME was set
[KYLIN-635] - IN clause within CASE when is not working
[KYLIN-656] - REST API get cube desc NullPointerException when cube is not exists
[KYLIN-660] - Make configurable of dictionary cardinality cap
[KYLIN-665] - buffer error while in mem cubing
[KYLIN-688] - possible memory leak for segmentIterator
[KYLIN-731] - Parallel stream build will throw OOM
[KYLIN-740] - Slowness with many IN() values
[KYLIN-747] - bad query performance when IN clause contains a value doesn't exist in the dictionary
[KYLIN-748] - II returned result not correct when decimal omits precision and scal
[KYLIN-751] - Max on negative double values is not working
[KYLIN-766] - round BigDecimal according to the DataType scale
[KYLIN-769] - empty segment build fail due to no dictionary
[KYLIN-771] - query cache is not evicted when metadata changes
[KYLIN-778] - can't build cube after package to binary
[KYLIN-780] - Upgrade Calcite to 1.0
[KYLIN-797] - Cuboid cache will cache massive invalid cuboid if existed many cubes which already be deleted
[KYLIN-801] - fix remaining issues on query cache and storage cache
[KYLIN-805] - Drop useless Hive intermediate table and HBase tables in the last step of cube build/merge
[KYLIN-807] - Avoid write conflict between job engine and stream cube builder
[KYLIN-817] - Support Extract() on timestamp column
[KYLIN-824] - Cube Build fails if lookup table doesn't have any files under HDFS location
[KYLIN-828] - kylin still use ldap profile when comment the line "kylin.sandbox=false" in kylin.properties
[KYLIN-834] - optimize StreamingUtil binary search perf
[KYLIN-837] - fix submit build type when refresh cube
[KYLIN-873] - cancel button does not work when [resume][discard] job
[KYLIN-889] - Support more than one HDFS files of lookup table
[KYLIN-897] - Update CubeMigrationCLI to copy data model info
[KYLIN-898] - "CUBOID_CACHE" in Cuboid.java never flushes
[KYLIN-905] - Boolean type not supported
[KYLIN-911] - NEW segments not DELETED when cancel BuildAndMerge Job
[KYLIN-912] - $KYLIN_HOME/tomcat/temp folder takes much disk space after long run
[KYLIN-913] - Cannot find rowkey column XXX in cube CubeDesc
[KYLIN-914] - Scripts shebang should use /bin/bash
[KYLIN-918] - Calcite throws "java.lang.Float cannot be cast to java.lang.Double" error while executing SQL
[KYLIN-929] - can not sort cubes by [Source Records] at cubes list page
[KYLIN-930] - can't see realizations under each project at project list page
[KYLIN-934] - Negative number in SUM result and Kylin results not matching exactly Hive results
[KYLIN-935] - always loading when try to view the log of the sub-step of cube build job
[KYLIN-936] - can not see job step log
[KYLIN-944] - update doc about how to consume kylin API in javascript
[KYLIN-946] - [UI] refresh page show no results when Project selected as [--Select All--]
[KYLIN-950] - Web UI "Jobs" tab view the job reduplicated
[KYLIN-951] - Drop RowBlock concept from GridTable general API
[KYLIN-952] - User can trigger a Refresh job on an non-existing cube segment via REST API
[KYLIN-967] - Dump running queries on memory shortage
[KYLIN-975] - change kylin.job.hive.database.for.intermediatetable cause job to fail
[KYLIN-978] - GarbageCollectionStep dropped Hive Intermediate Table but didn't drop external hdfs path
[KYLIN-982] - package.sh should grep out "Download*" messages when determining version
[KYLIN-983] - Query sql offset keyword bug
[KYLIN-985] - Don't suppoprt aggregation AVG while executing SQL
[KYLIN-991] - StorageCleanupJob may clean a newly created HTable in streaming cube building
[KYLIN-992] - ConcurrentModificationException when initializing ResourceStore
[KYLIN-993] - implement substr support in kylin
[KYLIN-1001] - Kylin generates wrong HDFS path in creating intermediate table
[KYLIN-1004] - Dictionary with '' value cause cube merge to fail
[KYLIN-1020] - Although "kylin.query.scan.threshold" is set, it still be restricted to less than 4 million
[KYLIN-1026] - Error message for git check is not correct in package.sh
[KYLIN-1027] - HBase Token not added after KYLIN-1007
[KYLIN-1033] - Error when joining two sub-queries
[KYLIN-1039] - Filter like (A or false) yields wrong result
[KYLIN-1047] - Upgrade to Calcite 1.4
[KYLIN-1066] - Only 1 reducer is started in the "Build cube" step of MR_Engine_V2
[KYLIN-1067] - Support get MapReduce Job status for ResourceManager HA Env
[KYLIN-1075] - select [MeasureCol] from [FactTbl] is not supported
[KYLIN-1093] - Consolidate getCurrentHBaseConfiguration() and newHBaseConfiguration() in HadoopUtil
[KYLIN-1106] - Can not send email caused by Build Base Cuboid Data step failed
[KYLIN-1108] - Return Type Empty When Measure-> Count In Cube Design
[KYLIN-1113] - Support TopN query in v2/CubeStorageQuery.java
[KYLIN-1115] - Clean up ODBC driver code
[KYLIN-1121] - ResourceTool download/upload does not work in binary package
[KYLIN-1127] - Refactor CacheService
[KYLIN-1137] - TopN measure need support dictionary merge
[KYLIN-1138] - Bad CubeDesc signature cause segment be delete when enable a cube
[KYLIN-1140] - Kylin's sample cube "kylin_sales_cube" couldn't be saved.
[KYLIN-1151] - Menu items should be aligned when create new model
[KYLIN-1152] - ResourceStore should read content and timestamp in one go
[KYLIN-1153] - Upgrade is needed for cubedesc metadata from 1.3 to 1.4
[KYLIN-1171] - KylinConfig truncate bug
[KYLIN-1179] - Cannot use String as partition column
[KYLIN-1180] - Some NPE in Dictionary
[KYLIN-1181] - Split metadata size exceeded when data got huge in one segment
[KYLIN-1182] - DataModelDesc needs to be updated from v1.x to v2.0
[KYLIN-1192] - Cannot edit data model desc without name change
[KYLIN-1205] - hbase RpcClient java.io.IOException: Unexpected closed connection
[KYLIN-1216] - Can't parse DateFormat like 'YYYYMMDD' correctly in query
[KYLIN-1218] - java.lang.NullPointerException in MeasureTypeFactory when sync hive table
[KYLIN-1220] - JsonMappingException: Can not deserialize instance of java.lang.String out of START_ARRAY
[KYLIN-1225] - Only 15 cubes listed in the /models page
[KYLIN-1226] - InMemCubeBuilder throw OOM for multiple HLLC measures
[KYLIN-1230] - When CubeMigrationCLI copied ACL from one env to another, it may not work
[KYLIN-1236] - redirect to home page when input invalid url
[KYLIN-1250] - Got NPE when discarding a job
[KYLIN-1260] - Job status labels are not in same style
[KYLIN-1269] - Can not get last error message in email
[KYLIN-1271] - Create streaming table layer will disappear if click on outside
[KYLIN-1274] - Query from JDBC is partial results by default
[KYLIN-1282] - Comparison filter on Date/Time column not work for query
[KYLIN-1289] - Click on subsequent wizard steps doesn't work when editing existing cube or model
[KYLIN-1303] - Error when in-mem cubing on empty data source which has boolean columns
[KYLIN-1306] - Null strings are not applied during fast cubing
[KYLIN-1314] - Display issue for aggression groups
[KYLIN-1315] - UI: Cannot add normal dimension when creating new cube
[KYLIN-1316] - Wrong label in Dialog CUBE REFRESH CONFIRM
[KYLIN-1328] - "UnsupportedOperationException" is thrown when remove a data model
[KYLIN-1330] - UI create model: Press enter will go back to pre step
[KYLIN-1336] - 404 errors of model page and api 'access/DataModelDesc' in console
[KYLIN-1337] - Sort cube name doesn't work well
[KYLIN-1346] - IllegalStateException happens in SparkCubing
[KYLIN-1347] - UI: cannot place cursor in front of the last dimension
[KYLIN-1349] - 'undefined' is logged in console when adding lookup table
[KYLIN-1352] - 'Cache already exists' exception in high-concurrency query situation
[KYLIN-1356] - use exec-maven-plugin for IT environment provision
[KYLIN-1357] - Cloned cube has build time information
[KYLIN-1372] - Query using PrepareStatement failed with multi OR clause
[KYLIN-1382] - CubeMigrationCLI reports error when migrate cube
[KYLIN-1387] - Streaming cubing doesn't generate cuboids files on HDFS, cause cube merge failure
[KYLIN-1396] - minor bug in BigDecimalSerializer - avoidVerbose should be incremented each time when input scale is larger than given scale
[KYLIN-1400] - kylin.metadata.url with hbase namespace problem
[KYLIN-1402] - StringIndexOutOfBoundsException in Kylin Hive Column Cardinality Job
[KYLIN-1412] - Widget width of "Partition date column" is too small to select
[KYLIN-1413] - Row key column's sequence is wrong after saving the cube
[KYLIN-1414] - Couldn't drag and drop rowkey, js error is thrown in browser console
[KYLIN-1417] - TimedJsonStreamParser is case sensitive for message's property name
[KYLIN-1419] - NullPointerException occurs when query from subqueries with order by
[KYLIN-1420] - Query returns empty result on partition column's boundary condition
[KYLIN-1421] - Cube "source record" is always zero for streaming
[KYLIN-1423] - HBase size precision issue
[KYLIN-1430] - Not add "STREAMING_" prefix when import a streaming table
[KYLIN-1443] - For setting Auto Merge Time Ranges, before sending them to backend, the related time ranges should be sorted increasingly
[KYLIN-1456] - Shouldn't use "1970-01-01" as the default end date
[KYLIN-1471] - LIMIT after having clause should not be pushed down to storage context
[KYLIN-1104] - Long dimension value cause ArrayIndexOutOfBoundsException
[KYLIN-1331] - UI Delete Aggregation Groups: cursor disappeared after delete 1 dimension
[KYLIN-1344] - Bitmap measure defined after TopN measure can cause merge to fail
[KYLIN-1356] - use exec-maven-plugin for IT environment provision
[KYLIN-1386] - Duplicated projects appear in connection dialog after clicking CONNECT button multiple times
[KYLIN-1396] - minor bug in BigDecimalSerializer - avoidVerbose should be incremented each time when input scale is larger than given scale
[KYLIN-1419] - NullPointerException occurs when query from subqueries with order by
[KYLIN-1445] - Kylin should throw error if HIVE_CONF dir cannot be found
[KYLIN-1466] - Some environment variables are not used in bin/kylin.sh <RUNNABLE_CLASS_NAME>
[KYLIN-1469] - Hive dependency jars are hard coded in test
[KYLIN-1471] - LIMIT after having clause should not be pushed down to storage context
[KYLIN-1473] - Cannot have comments in the end of New Query textbox

Task

[KYLIN-529] - Migrate ODBC source code to Apache Git
[KYLIN-650] - Move all document from github wiki to code repository (using md file)
[KYLIN-762] - remove quartz dependency
[KYLIN-763] - remove author name
[KYLIN-820] - support streaming cube of exact timestamp range
[KYLIN-907] - Improve Kylin community development experience
[KYLIN-1112] - Reorganize InvertedIndex source codes into plug-in architecture
[KYLIN-808] - streaming cubing support split by data timestamp
[KYLIN-1427] - Enable partition date column to support date and hour as separate columns for increment cube build

Test

[KYLIN-677] - benchmark for Endpoint without dictionary
[KYLIN-826] - create new test case for streaming building & queries

v1.3.0 - 2016-03-14

Tag: kylin-1.3.0

New Feature

[KYLIN-579] - Unload table from Kylin
[KYLIN-976] - Support Custom Aggregation Types
[KYLIN-1054] - Support Hive client Beeline
[KYLIN-1128] - Clone Cube Metadata
[KYLIN-1186] - Support precise Count Distinct using bitmap (under limited conditions)

Improvement

[KYLIN-955] - HiveColumnCardinalityJob should use configurations in conf/kylin_job_conf.xml
[KYLIN-1014] - Support kerberos authentication while getting status from RM
[KYLIN-1074] - Load hive tables with selecting mode
[KYLIN-1082] - Hive dependencies should be add to tmpjars
[KYLIN-1132] - make filtering input easier in creating cube
[KYLIN-1201] - Enhance project level ACL
[KYLIN-1211] - Add 'Enable Cache' button in System page
[KYLIN-1234] - Cube ACL does not work
[KYLIN-1240] - Fix link and typo in README
[KYLIN-1244] - In query window, enable fast copy&paste by double clicking tables/columns' names.
[KYLIN-1246] - get cubes API update - offset,limit not required
[KYLIN-1251] - add toggle event for tree label
[KYLIN-1259] - Change font/background color of job progress
[KYLIN-1312] - Enhance DeployCoprocessorCLI to support Cube level filter
[KYLIN-1317] - Kill underlying running hadoop job while discard a job
[KYLIN-1323] - Improve performance of converting data to hfile
[KYLIN-1333] - Kylin Entity Permission Control
[KYLIN-1343] - Upgrade calcite version to 1.6
[KYLIN-1365] - Kylin ACL enhancement
[KYLIN-1368] - JDBC Driver is not generic to restAPI json result

Bug fix

[KYLIN-918] - Calcite throws "java.lang.Float cannot be cast to java.lang.Double" error while executing SQL
[KYLIN-1075] - select [MeasureCol] from [FactTbl] is not supported
[KYLIN-1078] - Cannot have comments in the end of New Query textbox
[KYLIN-1104] - Long dimension value cause ArrayIndexOutOfBoundsException
[KYLIN-1110] - can not see project options after clear brower cookie and cache
[KYLIN-1159] - problem about kylin web UI
[KYLIN-1214] - Remove "Back to My Cubes" link in non-edit mode
[KYLIN-1215] - minor, update website member's info on community page
[KYLIN-1230] - When CubeMigrationCLI copied ACL from one env to another, it may not work
[KYLIN-1236] - redirect to home page when input invalid url
[KYLIN-1250] - Got NPE when discarding a job
[KYLIN-1254] - cube model will be overridden while creating a new cube with the same name
[KYLIN-1260] - Job status labels are not in same style
[KYLIN-1274] - Query from JDBC is partial results by default
[KYLIN-1316] - Wrong label in Dialog CUBE REFRESH CONFIRM
[KYLIN-1330] - UI create model: Press enter will go back to pre step
[KYLIN-1331] - UI Delete Aggregation Groups: cursor disappeared after delete 1 dimension
[KYLIN-1342] - Typo in doc
[KYLIN-1354] - Couldn't edit a cube if it has no "partition date" set
[KYLIN-1372] - Query using PrepareStatement failed with multi OR clause
[KYLIN-1396] - minor bug in BigDecimalSerializer - avoidVerbose should be incremented each time when input scale is larger than given scale
[KYLIN-1400] - kylin.metadata.url with hbase namespace problem
[KYLIN-1402] - StringIndexOutOfBoundsException in Kylin Hive Column Cardinality Job
[KYLIN-1412] - Widget width of "Partition date column" is too small to select
[KYLIN-1419] - NullPointerException occurs when query from subqueries with order by
[KYLIN-1423] - HBase size precision issue
[KYLIN-1443] - For setting Auto Merge Time Ranges, before sending them to backend, the related time ranges should be sorted increasingly
[KYLIN-1445] - Kylin should throw error if HIVE_CONF dir cannot be found
[KYLIN-1456] - Shouldn't use "1970-01-01" as the default end date
[KYLIN-1466] - Some environment variables are not used in bin/kylin.sh <RUNNABLE_CLASS_NAME>
[KYLIN-1469] - Hive dependency jars are hard coded in test

Test

[KYLIN-1335] - Disable PrintResult in KylinQueryTest

v1.2 - 2015-12-15

Tag: kylin-1.2

New Feature

[KYLIN-596] - Support Excel and Power BI

Improvement

[KYLIN-389] - Can't edit cube name for existing cubes
[KYLIN-702] - When Kylin create the flat hive table, it generates large number of small files in HDFS
[KYLIN-1021] - upload dependent jars of kylin to HDFS and set tmpjars
[KYLIN-1058] - Remove "right join" during model creation
[KYLIN-1064] - restore disabled queries in KylinQueryTest.testVerifyQuery
[KYLIN-1065] - ODBC driver support tableau 9.1
[KYLIN-1069] - update tip for 'Partition Column' on UI
[KYLIN-1081] - ./bin/find-hive-dependency.sh may not find hive-hcatalog-core.jar
[KYLIN-1095] - Update AdminLTE to latest version
[KYLIN-1099] - Support dictionary of cardinality over 10 millions
[KYLIN-1101] - Allow "YYYYMMDD" as a date partition column
[KYLIN-1105] - Cache in AbstractRowKeyEncoder.createInstance() is useless
[KYLIN-1119] - refine find-hive-dependency.sh to correctly get hcatalog path
[KYLIN-1139] - Hive job not starting due to error "conflicting lock present for default mode EXCLUSIVE "
[KYLIN-1149] - When yarn return an incomplete job tracking URL, Kylin will fail to get job status
[KYLIN-1154] - Load job page is very slow when there are a lot of history job
[KYLIN-1157] - CubeMigrationCLI doesn't copy ACL
[KYLIN-1160] - Set default logger appender of log4j for JDBC
[KYLIN-1161] - Rest API /api/cubes?cubeName= is doing fuzzy match instead of exact match
[KYLIN-1162] - Enhance HadoopStatusGetter to be compatible with YARN-2605
[KYLIN-1166] - CubeMigrationCLI should disable and purge the cube in source store after be migrated
[KYLIN-1168] - Couldn't save cube after doing some modification, get "Update data model is not allowed! Please create a new cube if needed" error
[KYLIN-1190] - Make memory budget per query configurable

Bug fix

[KYLIN-693] - Couldn't change a cube's name after it be created
[KYLIN-930] - can't see realizations under each project at project list page
[KYLIN-966] - When user creates a cube, if enter a name which already exists, Kylin will thrown expection on last step
[KYLIN-1033] - Error when joining two sub-queries
[KYLIN-1039] - Filter like (A or false) yields wrong result
[KYLIN-1067] - Support get MapReduce Job status for ResourceManager HA Env
[KYLIN-1070] - changing case in table name in model desc
[KYLIN-1093] - Consolidate getCurrentHBaseConfiguration() and newHBaseConfiguration() in HadoopUtil
[KYLIN-1098] - two "kylin.hbase.region.count.min" in conf/kylin.properties
[KYLIN-1106] - Can not send email caused by Build Base Cuboid Data step failed
[KYLIN-1108] - Return Type Empty When Measure-> Count In Cube Design
[KYLIN-1120] - MapReduce job read local meta issue
[KYLIN-1121] - ResourceTool download/upload does not work in binary package
[KYLIN-1140] - Kylin's sample cube "kylin_sales_cube" couldn't be saved.
[KYLIN-1148] - Edit project's name and cancel edit, project's name still modified
[KYLIN-1152] - ResourceStore should read content and timestamp in one go
[KYLIN-1155] - unit test with minicluster doesn't work on 1.x
[KYLIN-1203] - Cannot save cube after correcting the configuration mistake
[KYLIN-1205] - hbase RpcClient java.io.IOException: Unexpected closed connection
[KYLIN-1216] - Can't parse DateFormat like 'YYYYMMDD' correctly in query

Task

[KYLIN-1170] - Update website and status files to TLP

v1.1.1-incubating - 2015-11-04

Tag: kylin-1.1.1-incubating

Improvement

[KYLIN-999] - License check and cleanup for release

v1.1-incubating - 2015-10-25

Tag: kylin-1.1-incubating

New Feature

[KYLIN-222] - Web UI to Display CubeInstance Information
[KYLIN-906] - cube retention
[KYLIN-910] - Allow user to enter "retention range" in days on Cube UI

Bug fix

[KYLIN-457] - log4j error and dup lines in kylin.log
[KYLIN-632] - "kylin.sh stop" doesn't check whether KYLIN_HOME was set
[KYLIN-740] - Slowness with many IN() values
[KYLIN-747] - bad query performance when IN clause contains a value doesn't exist in the dictionary
[KYLIN-771] - query cache is not evicted when metadata changes
[KYLIN-797] - Cuboid cache will cache massive invalid cuboid if existed many cubes which already be deleted
[KYLIN-847] - "select * from fact" does not work on 0.7 branch
[KYLIN-913] - Cannot find rowkey column XXX in cube CubeDesc
[KYLIN-918] - Calcite throws "java.lang.Float cannot be cast to java.lang.Double" error while executing SQL
[KYLIN-944] - update doc about how to consume kylin API in javascript
[KYLIN-950] - Web UI "Jobs" tab view the job reduplicated
[KYLIN-952] - User can trigger a Refresh job on an non-existing cube segment via REST API
[KYLIN-958] - update cube data model may fail and leave metadata in inconsistent state
[KYLIN-961] - Can't get cube source record count.
[KYLIN-967] - Dump running queries on memory shortage
[KYLIN-968] - CubeSegment.lastBuildJobID is null in new instance but used for rowkey_stats path
[KYLIN-975] - change kylin.job.hive.database.for.intermediatetable cause job to fail
[KYLIN-978] - GarbageCollectionStep dropped Hive Intermediate Table but didn't drop external hdfs path
[KYLIN-982] - package.sh should grep out "Download*" messages when determining version
[KYLIN-983] - Query sql offset keyword bug
[KYLIN-985] - Don't suppoprt aggregation AVG while executing SQL
[KYLIN-1001] - Kylin generates wrong HDFS path in creating intermediate table
[KYLIN-1004] - Dictionary with '' value cause cube merge to fail
[KYLIN-1005] - fail to acquire ZookeeperJobLock when hbase.zookeeper.property.clientPort is configured other than 2181
[KYLIN-1015] - Hive dependency jars appeared twice on job configuration
[KYLIN-1020] - Although "kylin.query.scan.threshold" is set, it still be restricted to less than 4 million
[KYLIN-1026] - Error message for git check is not correct in package.sh

Improvement

[KYLIN-343] - Enable timeout on query
[KYLIN-367] - automatically backup metadata everyday
[KYLIN-589] - Cleanup Intermediate hive table after cube build
[KYLIN-772] - Continue cube job when hive query return empty resultset
[KYLIN-858] - add snappy compression support
[KYLIN-882] - check access to kylin.hdfs.working.dir
[KYLIN-895] - Add "retention_range" attribute for cube instance, and automatically drop the oldest segment when exceeds retention
[KYLIN-901] - Add tool for cleanup Kylin metadata storage
[KYLIN-956] - Allow users to configure hbase compression algorithm in kylin.properties
[KYLIN-957] - Support HBase in a separate cluster
[KYLIN-965] - Allow user to configure the region split size for cube
[KYLIN-971] - kylin display timezone on UI
[KYLIN-987] - Rename 0.7-staging and 0.8 branch
[KYLIN-998] - Finish the hive intermediate table clean up job in org.apache.kylin.job.hadoop.cube.StorageCleanupJob
[KYLIN-999] - License check and cleanup for release
[KYLIN-1013] - Make hbase client configurations like timeout configurable
[KYLIN-1025] - Save cube change is very slow
[KYLIN-1034] - Faster bitmap indexes with Roaring bitmaps
[KYLIN-1035] - Validate [Project] before create Cube on UI
[KYLIN-1037] - Remove hardcoded "hdp.version" from regression tests
[KYLIN-1047] - Upgrade to Calcite 1.4
[KYLIN-1048] - CPU and memory killer in Cuboid.findById()
[KYLIN-1061] - "kylin.sh start" should check whether kylin has already been running
[KYLIN-1048] - CPU and memory killer in Cuboid.findById()
[KYLIN-1061] - "kylin.sh start" should check whether kylin has already been running

v1.0-incubating - 2015-09-06

Tag: kylin-1.0-incubating

New Feature

[KYLIN-591] - Leverage Zeppelin to interactive with Kylin

Bug fix

[KYLIN-404] - Can't get cube source record size.
[KYLIN-626] - JDBC error for float and double values
[KYLIN-751] - Max on negative double values is not working
[KYLIN-757] - Cache wasn't flushed in cluster mode
[KYLIN-780] - Upgrade Calcite to 1.0
[KYLIN-805] - Drop useless Hive intermediate table and HBase tables in the last step of cube build/merge
[KYLIN-889] - Support more than one HDFS files of lookup table
[KYLIN-897] - Update CubeMigrationCLI to copy data model info
[KYLIN-898] - "CUBOID_CACHE" in Cuboid.java never flushes
[KYLIN-911] - NEW segments not DELETED when cancel BuildAndMerge Job
[KYLIN-912] - $KYLIN_HOME/tomcat/temp folder takes much disk space after long run
[KYLIN-914] - Scripts shebang should use /bin/bash
[KYLIN-915] - appendDBName in CubeMetadataUpgrade will return null
[KYLIN-921] - Dimension with all nulls cause BuildDimensionDictionary failed due to FileNotFoundException
[KYLIN-923] - FetcherRunner will never run again if encountered exception during running
[KYLIN-929] - can not sort cubes by [Source Records] at cubes list page
[KYLIN-934] - Negative number in SUM result and Kylin results not matching exactly Hive results
[KYLIN-935] - always loading when try to view the log of the sub-step of cube build job
[KYLIN-936] - can not see job step log
[KYLIN-940] - NPE when close the null resouce
[KYLIN-945] - Kylin JDBC - Get Connection from DataSource results in NullPointerException
[KYLIN-946] - [UI] refresh page show no results when Project selected as [--Select All--]
[KYLIN-949] - Query cache doesn't work properly for prepareStatement queries

Improvement

[KYLIN-568] - job support stop/suspend function so that users can manually resume a job
[KYLIN-717] - optimize OLAPEnumerator.convertCurrentRow()
[KYLIN-792] - kylin performance insight [dashboard]
[KYLIN-838] - improve performance of job query
[KYLIN-842] - Add version and commit id into binary package
[KYLIN-844] - add backdoor toggles to control query behavior
[KYLIN-857] - backport coprocessor improvement in 0.8 to 0.7
[KYLIN-866] - Confirm with user when he selects empty segments to merge
[KYLIN-867] - Hybrid model for multiple realizations/cubes
[KYLIN-880] - Kylin should change the default folder from /tmp to user configurable destination
[KYLIN-881] - Upgrade Calcite to 1.3.0
[KYLIN-883] - Using configurable option for Hive intermediate tables created by Kylin job
[KYLIN-893] - Remove the dependency on quartz and metrics
[KYLIN-922] - Enforce same code style for both intellij and eclipse user
[KYLIN-926] - Make sure Kylin leaves no garbage files in local OS and HDFS/HBASE
[KYLIN-933] - friendly UI to use data model
[KYLIN-938] - add friendly tip to page when rest request failed

Task

[KYLIN-884] - Restructure docs and website
[KYLIN-907] - Improve Kylin community development experience
[KYLIN-954] - Release v1.0 (formerly v0.7.3)
[KYLIN-863] - create empty segment when there is no data in one single streaming batch
[KYLIN-908] - Help community developer to setup develop/debug environment
[KYLIN-931] - Port KYLIN-921 to 0.8 branch

v0.7.2-incubating - 2015-07-21

Tag: kylin-0.7.2-incubating

Main Changes:
Critical bug fixes after v0.7.1 release, please go with this version directly for new case and upgrade to this version for existing deployment.

Bug

[KYLIN-514] - Error message is not helpful to user when doing something in Jason Editor window
[KYLIN-598] - Kylin detecting hive table delim failure
[KYLIN-660] - Make configurable of dictionary cardinality cap
[KYLIN-765] - When a cube job is failed, still be possible to submit a new job
[KYLIN-814] - Duplicate columns error for subqueries on fact table
[KYLIN-819] - Fix necessary ColumnMetaData order for Calcite (Optic)
[KYLIN-824] - Cube Build fails if lookup table doesn't have any files under HDFS location
[KYLIN-829] - Cube "Actions" shows "NA"; but after expand the "access" tab, the button shows up
[KYLIN-830] - Cube merge failed after migrating from v0.6 to v0.7
[KYLIN-831] - Kylin report "Column 'ABC' not found in table 'TABLE' while executing SQL", when that column is FK but not define as a dimension
[KYLIN-840] - HBase table compress not enabled even LZO is installed
[KYLIN-848] - Couldn't resume or discard a cube job
[KYLIN-849] - Couldn't query metrics on lookup table PK
[KYLIN-865] - Cube has been built but couldn't query; In log it said "Realization 'CUBE.CUBE_NAME' defined under project PROJECT_NAME is not found
[KYLIN-873] - cancel button does not work when [resume][discard] job
[KYLIN-888] - "Jobs" page only shows 15 job at max, the "Load more" button was disappeared

Improvement

[KYLIN-159] - Metadata migrate tool
[KYLIN-199] - Validation Rule: Unique value of Lookup table's key columns
[KYLIN-207] - Support SQL pagination
[KYLIN-209] - Merge tail small MR jobs into one
[KYLIN-210] - Split heavy MR job to more small jobs
[KYLIN-221] - Convert cleanup and GC to job
[KYLIN-284] - add log for all Rest API Request
[KYLIN-488] - Increase HDFS block size 1GB
[KYLIN-600] - measure return type update
[KYLIN-611] - Allow Implicit Joins
[KYLIN-623] - update Kylin UI Style to latest AdminLTE
[KYLIN-727] - Cube build in BuildCubeWithEngine does not cover incremental build/cube merge
[KYLIN-752] - Improved IN clause performance
[KYLIN-773] - performance is slow list jobs
[KYLIN-839] - Optimize Snapshot table memory usage

New Feature

[KYLIN-211] - Bitmap Inverted Index
[KYLIN-285] - Enhance alert program for whole system
[KYLIN-467] - Validataion Rule: Check duplicate rows in lookup table
[KYLIN-471] - Support "Copy" on grid result

Task

[KYLIN-7] - Enable maven checkstyle plugin
[KYLIN-885] - Release v0.7.2
[KYLIN-812] - Upgrade to Calcite 0.9.2

v0.7.1-incubating (First Apache Release) - 2015-06-10

Tag: kylin-0.7.1-incubating

Apache Kylin v0.7.1-incubating has rolled out on June 10, 2015. This is also the first Apache release after join incubating.

Main Changes:

Package renamed from com.kylinolap to org.apache.kylin
Code cleaned up to apply Apache License policy
Easy install and setup with bunch of scripts and automation
Job engine refactor to be generic job manager for all jobs, and improved efficiency
Support Hive database other than 'default'
JDBC driver avaliable for client to interactive with Kylin server
Binary pacakge avaliable download

New Feature

[KYLIN-327] - Binary distribution
[KYLIN-368] - Move MailService to Common module
[KYLIN-540] - Data model upgrade for legacy cube descs
[KYLIN-576] - Refactor expansion rate expression

Task

[KYLIN-361] - Rename package name with Apache Kylin
[KYLIN-531] - Rename package name to org.apache.kylin
[KYLIN-533] - Job Engine Refactoring
[KYLIN-585] - Simplify deployment
[KYLIN-586] - Add Apache License header in each source file
[KYLIN-587] - Remove hard copy of javascript libraries
[KYLIN-624] - Add dimension and metric info into DataModel
[KYLIN-650] - Move all document from github wiki to code repository (using md file)
[KYLIN-669] - Release v0.7.1 as first apache release
[KYLIN-670] - Update pom with "incubating" in version number
[KYLIN-737] - Generate and sign release package for review and vote
[KYLIN-795] - Release after success vote

Bug

[KYLIN-132] - Job framework
[KYLIN-194] - Dict & ColumnValueContainer does not support number comparison, they do string comparison right now
[KYLIN-220] - Enable swap column of Rowkeys in Cube Designer
[KYLIN-230] - Error when create HTable
[KYLIN-255] - Error when a aggregated function appear twice in select clause
[KYLIN-383] - Sample Hive EDW database name should be replaced by "default" in the sample
[KYLIN-399] - refreshed segment not correctly published to cube
[KYLIN-412] - No exception or message when sync up table which can't access
[KYLIN-421] - Hive table metadata issue
[KYLIN-436] - Can't sync Hive table metadata from other database rather than "default"
[KYLIN-508] - Too high cardinality is not suitable for dictionary!
[KYLIN-509] - Order by on fact table not works correctly
[KYLIN-517] - Always delete the last one of Add Lookup page buttom even if deleting the first join condition
[KYLIN-524] - Exception will throw out if dimension is created on a lookup table, then deleting the lookup table.
[KYLIN-547] - Create cube failed if column dictionary sets false and column length value greater than 0
[KYLIN-556] - error tip enhance when cube detail return empty
[KYLIN-570] - Need not to call API before sending login request
[KYLIN-571] - Dimensions lost when creating cube though Joson Editor
[KYLIN-572] - HTable size is wrong
[KYLIN-581] - unable to build cube
[KYLIN-583] - Dependency of Hive conf/jar in II branch will affect auto deploy
[KYLIN-588] - Error when run package.sh
[KYLIN-593] - angular.min.js.map and angular-resource.min.js.map are missing in kylin.war
[KYLIN-594] - Making changes in build and packaging with respect to apache release process
[KYLIN-595] - Kylin JDBC driver should not assume Kylin server listen on either 80 or 443
[KYLIN-605] - Issue when install Kylin on a CLI which does not have yarn Resource Manager
[KYLIN-614] - find hive dependency shell fine is unable to set the hive dependency correctly
[KYLIN-615] - Unable add measures in Kylin web UI
[KYLIN-619] - Cube build fails with hive+tez
[KYLIN-620] - Wrong duration number
[KYLIN-621] - SecurityException when running MR job
[KYLIN-627] - Hive tables' partition column was not sync into Kylin
[KYLIN-628] - Couldn't build a new created cube
[KYLIN-629] - Kylin failed to run mapreduce job if there is no mapreduce.application.classpath in mapred-site.xml
[KYLIN-630] - ArrayIndexOutOfBoundsException when merge cube segments
[KYLIN-638] - kylin.sh stop not working
[KYLIN-639] - Get "Table 'xxxx' not found while executing SQL" error after a cube be successfully built
[KYLIN-640] - sum of float not working
[KYLIN-642] - Couldn't refresh cube segment
[KYLIN-643] - JDBC couldn't connect to Kylin: "java.sql.SQLException: Authentication Failed"
[KYLIN-644] - join table as null error when build the cube
[KYLIN-652] - Lookup table alias will be set to null
[KYLIN-657] - JDBC Driver not register into DriverManager
[KYLIN-658] - java.lang.IllegalArgumentException: Cannot find rowkey column XXX in cube CubeDesc
[KYLIN-659] - Couldn't adjust the rowkey sequence when create cube
[KYLIN-666] - Select float type column got class cast exception
[KYLIN-681] - Failed to build dictionary if the rowkey's dictionary property is "date(yyyy-mm-dd)"
[KYLIN-682] - Got "No aggregator for func 'MIN' and return type 'decimal(19,4)'" error when build cube
[KYLIN-684] - Remove holistic distinct count and multiple column distinct count from sample cube
[KYLIN-691] - update tomcat download address in download-tomcat.sh
[KYLIN-696] - Dictionary couldn't recognize a value and throw IllegalArgumentException: "Not a valid value"
[KYLIN-703] - UT failed due to unknown host issue
[KYLIN-711] - UT failure in REST module
[KYLIN-739] - Dimension as metrics does not work with PK-FK derived column
[KYLIN-761] - Tables are not shown in the "Query" tab, and couldn't run SQL query after cube be built

Improvement

[KYLIN-168] - Installation fails if multiple ZK
[KYLIN-182] - Validation Rule: columns used in Join condition should have same datatype
[KYLIN-204] - Kylin web not works properly in IE
[KYLIN-217] - Enhance coprocessor with endpoints
[KYLIN-251] - job engine refactoring
[KYLIN-261] - derived column validate when create cube
[KYLIN-317] - note: grunt.json need to be configured when add new javascript or css file
[KYLIN-324] - Refactor metadata to support InvertedIndex
[KYLIN-407] - Validation: There's should no Hive table column using "binary" data type
[KYLIN-445] - Rename cube_desc/cube folder
[KYLIN-452] - Automatically create local cluster for running tests
[KYLIN-498] - Merge metadata tables
[KYLIN-532] - Refactor data model in kylin front end
[KYLIN-539] - use hbase command to launch tomcat
[KYLIN-542] - add project property feature for cube
[KYLIN-553] - From cube instance, couldn't easily find the project instance that it belongs to
[KYLIN-563] - Wrap kylin start and stop with a script
[KYLIN-567] - More flexible validation of new segments
[KYLIN-569] - Support increment+merge job
[KYLIN-578] - add more generic configuration for ssh
[KYLIN-601] - Extract content from kylin.tgz to "kylin" folder
[KYLIN-616] - Validation Rule: partition date column should be in dimension columns
[KYLIN-634] - Script to import sample data and cube metadata
[KYLIN-636] - wiki/On-Hadoop-CLI-installation is not up to date
[KYLIN-637] - add start&end date for hbase info in cubeDesigner
[KYLIN-714] - Add Apache RAT to pom.xml
[KYLIN-753] - Make the dependency on hbase-common to "provided"
[KYLIN-758] - Updating port forwarding issue Hadoop Installation on Hortonworks Sandbox.
[KYLIN-779] - [UI] jump to cube list after create cube
[KYLIN-796] - Add REST API to trigger storage cleanup/GC

v4.0.1 - 2022-01-05​

v3.1.3 - 2022-01-05​

v3.1.2 - 2021-04-26​

v4.0.0-beta - 2021-02-07​

v3.1.1 - 2020-10-18​

v4.0.0-alpha - 2020-09-13​

v3.1.0 - 2020-07-02​

v3.0.2 - 2020-05-19​

v3.0.1 - 2020-02-20​

v3.0.0 - 2019-12-20​

v3.0.0-beta - 2019-10-25​

v3.0.0-alpha2 - 2019-07-31​

v3.0.0-alpha - 2019-04-12​

v2.6.6 - 2020-05-19​

v2.6.5 - 2020-02-20​

v2.6.4 - 2019-10-12​

v2.6.3 - 2019-07-06​

v2.6.2 - 2019-05-19​

v2.6.1 - 2019-03-08​

v2.6.0 - 2019-01-12​

v2.5.2 - 2018-12-04​

v2.5.1 - 2018-11-06​

v2.5.0 - 2018-09-16​

v2.4.1 - 2018-09-09​

v2.4.0 - 2018-06-23​

v2.3.2 - 2018-07-08​

v2.3.1 - 2018-03-28​

v2.3.0 - 2018-03-04​

v2.2.0 - 2017-11-03​

v2.1.0 - 2017-08-17​

v2.0.0 - 2017-04-30​

v1.6.0 - 2016-11-26​

v1.5.4.1 - 2016-09-28​

v1.5.4 - 2016-09-15​

v1.5.3 - 2016-07-28​

v1.5.2.1 - 2016-06-07​

v1.5.2 - 2016-05-26​

v1.5.1 - 2016-04-13​

v1.5.0 - 2016-03-12​

v1.3.0 - 2016-03-14​

v1.2 - 2015-12-15​

v1.1.1-incubating - 2015-11-04​

v1.1-incubating - 2015-10-25​

v1.0-incubating - 2015-09-06​

v0.7.2-incubating - 2015-07-21​

v0.7.1-incubating (First Apache Release) - 2015-06-10​

v4.0.1 - 2022-01-05

v3.1.3 - 2022-01-05

v3.1.2 - 2021-04-26

v4.0.0-beta - 2021-02-07

v3.1.1 - 2020-10-18

v4.0.0-alpha - 2020-09-13

v3.1.0 - 2020-07-02

v3.0.2 - 2020-05-19

v3.0.1 - 2020-02-20

v3.0.0 - 2019-12-20

v3.0.0-beta - 2019-10-25

v3.0.0-alpha2 - 2019-07-31

v3.0.0-alpha - 2019-04-12

v2.6.6 - 2020-05-19

v2.6.5 - 2020-02-20

v2.6.4 - 2019-10-12

v2.6.3 - 2019-07-06

v2.6.2 - 2019-05-19

v2.6.1 - 2019-03-08

v2.6.0 - 2019-01-12

v2.5.2 - 2018-12-04

v2.5.1 - 2018-11-06

v2.5.0 - 2018-09-16

v2.4.1 - 2018-09-09

v2.4.0 - 2018-06-23

v2.3.2 - 2018-07-08

v2.3.1 - 2018-03-28

v2.3.0 - 2018-03-04

v2.2.0 - 2017-11-03

v2.1.0 - 2017-08-17

v2.0.0 - 2017-04-30

v1.6.0 - 2016-11-26

v1.5.4.1 - 2016-09-28

v1.5.4 - 2016-09-15

v1.5.3 - 2016-07-28

v1.5.2.1 - 2016-06-07

v1.5.2 - 2016-05-26

v1.5.1 - 2016-04-13

v1.5.0 - 2016-03-12

v1.3.0 - 2016-03-14

v1.2 - 2015-12-15

v1.1.1-incubating - 2015-11-04

v1.1-incubating - 2015-10-25

v1.0-incubating - 2015-09-06

v0.7.2-incubating - 2015-07-21

v0.7.1-incubating (First Apache Release) - 2015-06-10