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https://issues.apache.org/jira/browse/YARN-4061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15888979#comment-15888979
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Sangjin Lee commented on YARN-4061:
-----------------------------------

[~haibochen], is your comment a general comment on what that method is doing, 
independent of this JIRA? If so, I think that is correct. It must be a bug. 
Today there is no caller for that flavor of the {{store()}} method, but we 
should still fix it. Do you mind opening a new JIRA to fix that? Have you 
checked other {{store()}} methods to see if there is any other similar issue?

> [Fault tolerance] Fault tolerant writer for timeline v2
> -------------------------------------------------------
>
>                 Key: YARN-4061
>                 URL: https://issues.apache.org/jira/browse/YARN-4061
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Li Lu
>            Assignee: Joep Rottinghuis
>              Labels: YARN-5355, yarn-5355-merge-blocker
>         Attachments: FaulttolerantwriterforTimelinev2.pdf
>
>
> We need to build a timeline writer that can be resistant to backend storage 
> down time and timeline collector failures. 



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