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https://issues.apache.org/jira/browse/YARN-9940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16962888#comment-16962888
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Bibin Chundatt commented on YARN-9940:
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[~kailiu_dev]
Apologies i thought issue is duplicate of YARN-8436 and you have close due to
that.
Fixed and resolved is only if the changes has gone into 3.2.0. Its that is not
the case we have to keep the issue open.
Please refer :
https://cwiki.apache.org/confluence/display/HADOOP/How+To+Contribute
Reopening the issue
> 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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