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Posted to issues@tajo.apache.org by "Jaehwa Jung (JIRA)" <ji...@apache.org> on 2014/02/26 06:16:19 UTC
[jira] [Commented] (TAJO-427) Empty table makes
IndexOutOfBoundsException at LEFT OUTER JOIN clause.
[ https://issues.apache.org/jira/browse/TAJO-427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13912530#comment-13912530 ]
Jaehwa Jung commented on TAJO-427:
----------------------------------
I think that empty table is a problem of join query.
> Empty table makes IndexOutOfBoundsException at LEFT OUTER JOIN clause.
> ----------------------------------------------------------------------
>
> Key: TAJO-427
> URL: https://issues.apache.org/jira/browse/TAJO-427
> Project: Tajo
> Issue Type: Bug
> Reporter: Jaehwa Jung
>
> If empty table use at LEFT OUTER JOIN clause, it makes IndexOutOfBoundsException as follows:
> {code:xml}
> tajo> select * from table1;
> Progress: 100%, response time: 0.146 sec
> final state: QUERY_SUCCEEDED, response time: 0.146 sec
> result: hdfs://localhost:9010/tmp/tajo-blrunner/staging/q_1387348492386_0013/RESULT, 5 rows (60 B)
> id, name, score, type
> -------------------------------
> 1, ooo, 1.1, a
> 2, ppp, 2.3, b
> 3, qqq, 3.4, c
> 4, rrr, 4.5, d
> 5, xxx, 5.6, e
> tajo> select * from table3;
> Progress: 100%, response time: 0.053 sec
> final state: QUERY_SUCCEEDED, response time: 0.053 sec
> result: hdfs://localhost:9010/tmp/tajo-blrunner/staging/q_1387348492386_0014/RESULT, 0 rows (0 B)
> id, name, score, type
> -------------------------------
> tajo> select a.id, a.name, a.score, case when b.name is null then 'zzz' else b.name end as name2 from table1 a left outer join table3 b on a.id = b.id;
> Internal error!
> {code}
> Tajo master makes log as follows:
> {code:xml}
> 2013-12-18 15:39:25,678 INFO service.AbstractService (AbstractService.java:start(94)) - Service:org.apache.tajo.worker.AbstractResourceAllocator is started.
> 2013-12-18 15:39:25,678 INFO service.AbstractService (AbstractService.java:start(94)) - Service:org.apache.tajo.master.TajoAsyncDispatcher is started.
> 2013-12-18 15:39:25,679 INFO master.TajoAsyncDispatcher (TajoAsyncDispatcher.java:start(101)) - AsyncDispatcher started:q_1387348492386_0015
> 2013-12-18 15:39:25,679 INFO service.AbstractService (AbstractService.java:start(94)) - Service:org.apache.tajo.master.querymaster.QueryMasterTask is started.
> 2013-12-18 15:39:25,679 INFO querymaster.Query (Query.java:handle(452)) - Processing q_1387348492386_0015 of type START
> 2013-12-18 15:39:25,682 INFO storage.AbstractStorageManager (AbstractStorageManager.java:listStatus(384)) - Total input paths to process : 0
> 2013-12-18 15:39:25,682 INFO storage.AbstractStorageManager (AbstractStorageManager.java:getSplits(612)) - Total # of splits: 0
> 2013-12-18 15:39:25,682 ERROR querymaster.SubQuery (SubQuery.java:transition(529)) - SubQuery (eb_1387348492386_0015_000003) ERROR:
> java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
> at java.util.ArrayList.RangeCheck(ArrayList.java:547)
> at java.util.ArrayList.get(ArrayList.java:322)
> at org.apache.tajo.master.querymaster.Repartitioner.createJoinTasks(Repartitioner.java:96)
> at org.apache.tajo.master.querymaster.SubQuery$InitAndRequestContainer.createTasks(SubQuery.java:663)
> at org.apache.tajo.master.querymaster.SubQuery$InitAndRequestContainer.transition(SubQuery.java:517)
> at org.apache.tajo.master.querymaster.SubQuery$InitAndRequestContainer.transition(SubQuery.java:499)
> at org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:382)
> at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:299)
> at org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:43)
> at org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:445)
> at org.apache.tajo.master.querymaster.SubQuery.handle(SubQuery.java:476)
> at org.apache.tajo.master.querymaster.Query$StartTransition.transition(Query.java:288)
> at org.apache.tajo.master.querymaster.Query$StartTransition.transition(Query.java:277)
> at org.apache.hadoop.yarn.state.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:359)
> at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:299)
> at org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:43)
> at org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:445)
> at org.apache.tajo.master.querymaster.Query.handle(Query.java:457)
> at org.apache.tajo.master.querymaster.Query.handle(Query.java:54)
> at org.apache.tajo.master.TajoAsyncDispatcher.dispatch(TajoAsyncDispatcher.java:137)
> at org.apache.tajo.master.TajoAsyncDispatcher$1.run(TajoAsyncDispatcher.java:79)
> at java.lang.Thread.run(Thread.java:680)
> {code}
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