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https://issues.apache.org/jira/browse/YUNIKORN-1218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weiwei Yang updated YUNIKORN-1218:
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    Attachment: stacktrace.log

> Scheduler crashed with concurrent map access error in health checker
> --------------------------------------------------------------------
>
>                 Key: YUNIKORN-1218
>                 URL: https://issues.apache.org/jira/browse/YUNIKORN-1218
>             Project: Apache YuniKorn
>          Issue Type: Bug
>          Components: core - scheduler
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>            Priority: Major
>         Attachments: reproduce.patch, stacktrace.log
>
>
> After YUNIKORN-1107, the health checker runs as a background thread in 30s 
> interval. We observed a few scheduler restarts in the past week that seems to 
> be caused by this thread, because it has an unsafe access to the partition 
> context without proper read lock. I have uploaded a patch to reproduce this 
> locally, and a file of the stack trace when crash happens. 



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