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From "weijie.tong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5967) Memory leak by HashPartitionSender
Date Wed, 15 Nov 2017 13:18:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16253427#comment-16253427
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weijie.tong commented on DRILL-5967:
------------------------------------

[~timothyfarkas] could you please show the codes that need to be updated firstly ? then I
can fix this bug at our own recent release. I found the PartionSenderRootExec's close method
was called when the corresponding FragmentExcecutor receives a cancel signal. I want to know
the exact code parts which caused the memory leaks. 

> 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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