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https://issues.apache.org/jira/browse/DRILL-6793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arina Ielchiieva updated DRILL-6793:
------------------------------------
Reviewer: Volodymyr Vysotskyi
> 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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