[jira] [Resolved] (YARN-11642) Fix Flaky Test TestTimelineAuthFilterForV2#testPutTimelineEntities

["Shilun Fan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-11642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan resolved YARN-11642.
-------------------------------
       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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