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https://issues.apache.org/jira/browse/YARN-4987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Li Lu updated YARN-4987:
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Summary: Read cache concurrency issue between read and evict in
EntityGroupFS timeline store (was: EntityGroupFS timeline store needs to
handle null storage gracefully)
> Read cache concurrency issue between read and evict in EntityGroupFS timeline
> store
> ------------------------------------------------------------------------------------
>
> Key: YARN-4987
> URL: https://issues.apache.org/jira/browse/YARN-4987
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Li Lu
> Assignee: Li Lu
> Priority: Critical
>
> To handle concurrency issues, key value based timeline storage may return
> null on reads that are concurrent to service stop. EntityGroupFS timeline
> store needs to handle this case gracefully.
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