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Posted to issues@drill.apache.org by "Timothy Farkas (JIRA)" <ji...@apache.org> on 2017/11/15 00:35:00 UTC
[jira] [Commented] (DRILL-5967) Memory leak by HashPartitionSender
[ https://issues.apache.org/jira/browse/DRILL-5967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16252756#comment-16252756 ]
Timothy Farkas commented on DRILL-5967:
---------------------------------------
I think I know what going on. When performing a HashPartionSend the PartitionSenderRootExec creates outgoing record batches with the HashPartionSender allocator. When a query is cancelled the PartitionSenderRootExec operator recieves a stop signal and terminates without ever releasing the outgoing record batches that were created.
> Memory leak by HashPartitionSender
> ----------------------------------
>
> Key: DRILL-5967
> URL: https://issues.apache.org/jira/browse/DRILL-5967
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Timothy Farkas
> Assignee: Timothy Farkas
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> The error found by [~cchang@maprtech.com] and [~dechanggu]
> {code}
> 2017-10-25 15:43:28,658 [260eec84-7de3-03ec-300f-7fdbc111fb7c:frag:2:9] ERROR o.a.d.e.w.fragment.FragmentExecutor - SYSTEM ERROR: IllegalStateException: Memory was leaked by query. Memory leaked: (9216)
> Allocator(op:2:9:0:HashPartitionSender) 1000000/9216/12831744/10000000000 (res/actual/peak/limit)
> Fragment 2:9
> [Error Id: 7eae6c2a-868c-49f8-aad8-b690243ffe9b on mperf113.qa.lab:31010]
> org.apache.drill.common.exceptions.UserException: SYSTEM ERROR: IllegalStateException: Memory was leaked by query. Memory leaked: (9216)
> Allocator(op:2:9:0:HashPartitionSender) 1000000/9216/12831744/10000000000 (res/actual/peak/limit)
> Fragment 2:9
> [Error Id: 7eae6c2a-868c-49f8-aad8-b690243ffe9b on mperf113.qa.lab:31010]
> at org.apache.drill.common.exceptions.UserException$Builder.build(UserException.java:586) ~[drill-common-1.11.0-mapr.jar:1.11.0-mapr]
> at org.apache.drill.exec.work.fragment.FragmentExecutor.sendFinalState(FragmentExecutor.java:301) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr]
> at org.apache.drill.exec.work.fragment.FragmentExecutor.cleanup(FragmentExecutor.java:160) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr]
> at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:267) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr]
> at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38) [drill-common-1.11.0-mapr.jar:1.11.0-mapr]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]
> Caused by: java.lang.IllegalStateException: Memory was leaked by query. Memory leaked: (9216)
> Allocator(op:2:9:0:HashPartitionSender) 1000000/9216/12831744/10000000000 (res/actual/peak/limit)
> {code}
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