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Posted to yarn-issues@hadoop.apache.org by "kailiu_dev (Jira)" <ji...@apache.org> on 2019/10/29 12:38:00 UTC
[jira] [Reopened] (YARN-9940) avoid continuous scheduling thread
crashes while sorting nodes get 'Comparison method violates its general
contract'
[ https://issues.apache.org/jira/browse/YARN-9940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
kailiu_dev reopened YARN-9940:
------------------------------
> avoid continuous scheduling thread crashes while sorting nodes get 'Comparison method violates its general contract'
> --------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-9940
> URL: https://issues.apache.org/jira/browse/YARN-9940
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 2.7.2
> Reporter: kailiu_dev
> Priority: Major
> Fix For: 3.2.0
>
> Attachments: 0001.patch
>
>
> 2019-10-16 09:14:51,215 ERROR org.apache.hadoop.yarn.YarnUncaughtExceptionHandler: Thread Thread[FairSchedulerContinuousScheduling,5,main] threw an Exception.
> java.lang.IllegalArgumentException: Comparison method violates its general contract!
> at java.util.TimSort.mergeHi(TimSort.java:868)
> at java.util.TimSort.mergeAt(TimSort.java:485)
> at java.util.TimSort.mergeForceCollapse(TimSort.java:426)
> at java.util.TimSort.sort(TimSort.java:223)
> at java.util.TimSort.sort(TimSort.java:173)
> at java.util.Arrays.sort(Arrays.java:659)
> at java.util.Collections.sort(Collections.java:217)
> at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.continuousSchedulingAttempt(FairScheduler.java:1117)
> at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler$ContinuousSchedulingThread.run(FairScheduler.java:296)
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