Billy(Yiming) Liu created KYLIN-1912:
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Summary: Create Intermediate Flat Hive Table failed when using
beeline
Key: KYLIN-1912
URL: https://issues.apache.org/jira/browse/KYLIN-1912
Project: Kylin
Issue Type: Bug
Components: Job Engine
Affects Versions: v1.5.2
Reporter: Billy(Yiming) Liu
Assignee: Dong Li
Priority: Critical
When beeline is enabled with parameters:
kylin.hive.client = beeline
kylin.hive.beeline.params=-n root --hiveconf
hive.security.authorization.sqlstd.confwhitelist.append='mapreduce.job.*|dfs.*'
-u 'jdbc:hive2://localhost:10000'
The build cube will fail with following exceptions:
{code}
java.lang.IllegalArgumentException: Map input splits are 0 bytes, something is
wrong!
at
org.apache.kylin.engine.mr.common.AbstractHadoopJob.getTotalMapInputMB(AbstractHadoopJob.java:528)
at
org.apache.kylin.engine.mr.steps.CuboidJob.setReduceTaskNum(CuboidJob.java:183)
at org.apache.kylin.engine.mr.steps.CuboidJob.run(CuboidJob.java:139)
at org.apache.kylin.engine.mr.MRUtil.runMRJob(MRUtil.java:91)
at
org.apache.kylin.engine.mr.common.MapReduceExecutable.doWork(MapReduceExecutable.java:121)
at
org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:114)
at
org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:50)
at
org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:114)
at
org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:124)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
2016-07-21 15:05:38,615 INFO [pool-5-thread-6] common.AbstractHadoopJob:479 :
tempMetaFileString is :
file:///opt/client/kylin/apache-kylin-1.5.2.1-bin/bin/./../tomcat/temp/kylin_job_meta5547890224035214519/meta
2016-07-21 15:05:38,619 ERROR [pool-5-thread-6]
execution.AbstractExecutable:128 : error execute
MapReduceExecutable{id=782765e2-5357-4cc3-8430-b4ee9ffc69de-05, name=Build Base
Cuboid Data, state=RUNNING}
java.lang.IllegalArgumentException: Map input splits are 0 bytes, something is
wrong!
at
org.apache.kylin.engine.mr.common.AbstractHadoopJob.getTotalMapInputMB(AbstractHadoopJob.java:528)
at
org.apache.kylin.engine.mr.steps.CuboidJob.setReduceTaskNum(CuboidJob.java:183)
at org.apache.kylin.engine.mr.steps.CuboidJob.run(CuboidJob.java:139)
at org.apache.kylin.engine.mr.MRUtil.runMRJob(MRUtil.java:91)
at
org.apache.kylin.engine.mr.common.MapReduceExecutable.doWork(MapReduceExecutable.java:121)
at
org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:114)
at
org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:50)
at
org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:114)
at
org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:124)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{code}
After checking the detail logs, I found the intermediate table may not create
succeed.
{code}
2016-07-21 15:15:50,361 INFO [pool-5-thread-1]
execution.AbstractExecutable:100 : Executing >>>>>>>>>>>>> Create
Intermediate Flat Hive Table <<<<<<<<<<<<<
2016-07-21 15:15:50,376 DEBUG [pool-5-thread-1] hbase.HBaseResourceStore:262 :
Update row /execute_output/8bd42c24-9fef-4d9f-887f-7de1dac57f7e-00 from oldTs:
1469085306322, to newTs: 1469085350362, operation result: true
2016-07-21 15:15:50,376 INFO [pool-5-thread-1] manager.ExecutableManager:274 :
job id:8bd42c24-9fef-4d9f-887f-7de1dac57f7e-00 from READY to RUNNING
2016-07-21 15:15:50,376 INFO [pool-5-thread-1] execution.AbstractExecutable:49
: executing:beeline -f
/opt/client/kylin/apache-kylin-1.5.2.1-bin/bin/./../tomcat/temp/beeline_346879081651464139.hql;rm
-f
/opt/client/kylin/apache-kylin-1.5.2.1-bin/bin/./../tomcat/temp/beeline_346879081651464139.hql
2016-07-21 15:15:53,999 DEBUG [pool-5-thread-1] hbase.HBaseResourceStore:262 :
Update row /execute_output/8bd42c24-9fef-4d9f-887f-7de1dac57f7e-00 from oldTs:
1469085350362, to newTs: 1469085353989, operation result: true
2016-07-21 15:15:54,028 DEBUG [pool-5-thread-1] hbase.HBaseResourceStore:262 :
Update row /execute_output/8bd42c24-9fef-4d9f-887f-7de1dac57f7e-00 from oldTs:
1469085353989, to newTs: 1469085354001, operation result: true
2016-07-21 15:15:54,062 DEBUG [pool-5-thread-1] hbase.HBaseResourceStore:262 :
Update row /execute_output/8bd42c24-9fef-4d9f-887f-7de1dac57f7e-00 from oldTs:
1469085354001, to newTs: 1469085354030, operation result: true
2016-07-21 15:15:54,062 INFO [pool-5-thread-1] manager.ExecutableManager:274 :
job id:8bd42c24-9fef-4d9f-887f-7de1dac57f7e-00 from RUNNING to SUCCEED
{code}
Now use beeline command to create the intermediate table, return SUCCEED in
only 4 seconds, normally build is 40+ seconds with Hive CLI.
Then check the code, found beeline could not process ";" properly. Beeline
execute each statement for each line, not split by ";". But Kylin has the
variable 'useDatabaseHql' with value 'USE default;" without the 'new line'.
That's the root cause. Not a difficult problem, buy may stop many new beeline
user.
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