[
https://issues.apache.org/jira/browse/YARN-4987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15261240#comment-15261240
]
Li Lu commented on YARN-4987:
-----------------------------
I just notice there is a caching/concurrency bug hidden behind this issue. The
cache item being reclaimed may actually be reading by some other concurrent
readers. Will fix the problem in this JIRA.
> EntityGroupFS timeline store needs to handle null storage gracefully
> --------------------------------------------------------------------
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
