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Posted to issues@drill.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/10/17 08:53:00 UTC
[jira] [Commented] (DRILL-6793) FragmentExecutor cannot send its
final state for the case when RootExec root wasn't initialized
[ https://issues.apache.org/jira/browse/DRILL-6793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16653207#comment-16653207 ]
ASF GitHub Bot commented on DRILL-6793:
---------------------------------------
KazydubB opened a new pull request #1506: DRILL-6793: FragmentExecutor cannot send its final state for the case…
URL: https://github.com/apache/drill/pull/1506
… when RootExec root wasn't initialized
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> FragmentExecutor cannot send its final state for the case when RootExec root wasn't initialized
> -----------------------------------------------------------------------------------------------
>
> Key: DRILL-6793
> URL: https://issues.apache.org/jira/browse/DRILL-6793
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.15.0
> Reporter: Volodymyr Vysotskyi
> Assignee: Bohdan Kazydub
> Priority: Major
> Fix For: 1.15.0
>
>
> *Problem description*
> For the case when the exception was thrown during [initializing {{RootExec root}}|https://github.com/apache/drill/blob/master/exec/java-exec/src/main/java/org/apache/drill/exec/work/fragment/FragmentExecutor.java#L264], after that {{root.dumpBatches()}} is called in {{FragmentExecutor.cleanup()}} method, so NPE will be thrown before releasing the resources and sending the final state.
> {noformat}
> 20:11:22.910 [243f2a45-cd8a-b3f8-3d5d-36fdbe8fb446:frag:0:0] ERROR o.a.d.exec.server.BootStrapContext - org.apache.drill.exec.work.WorkManager$WorkerBee$2.run() leaked an exception.
> Exception in thread "243f2a45-cd8a-b3f8-3d5d-36fdbe8fb446:frag:0:0" java.lang.NullPointerException
> at org.apache.drill.exec.work.fragment.FragmentExecutor.cleanup(FragmentExecutor.java:211)
> at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:330)
> at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> java.lang.NullPointerException: null
> at org.apache.drill.exec.work.fragment.FragmentExecutor.cleanup(FragmentExecutor.java:211) ~[classes/:na]
> at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:330) ~[classes/:na]
> at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38) ~[classes/:na]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_181]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_181]
> at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
> {noformat}
> *Simple reproduce*
> Throw the exception in the constructor of {{ParquetRecordReader}} and run any parquet test, for example {{TestParquetMetadataCache.testPartitionPruningWithMetadataCache_1()}}
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