kailiu_dev created YARN-9940:
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Summary: 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
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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