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https://issues.apache.org/jira/browse/YARN-11642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shilun Fan resolved YARN-11642.
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Fix Version/s: 3.4.0
Hadoop Flags: Reviewed
Target Version/s: 3.4.0
Resolution: Fixed
> Fix Flaky Test TestTimelineAuthFilterForV2#testPutTimelineEntities
> ------------------------------------------------------------------
>
> Key: YARN-11642
> URL: https://issues.apache.org/jira/browse/YARN-11642
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: timelineservice
> Affects Versions: 3.5.0
> Reporter: Shilun Fan
> Assignee: Shilun Fan
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
>
> Our current unit tests are all executed in parallel.
> TestTimelineAuthFilterForV2#testPutTimelineEntities will report an error
> during execution:
> {code:java}
> [main] collector.PerNodeTimelineCollectorsAuxService
> (StringUtils.java:startupShutdownMessage(755)) - failed to register any UNIX
> signal loggers:
> java.lang.IllegalStateException: Can't re-install the signal handlers.
> {code}
> We can solve this problem by changing static initialization to new Object.
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