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https://issues.apache.org/jira/browse/YARN-3984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14646935#comment-14646935
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Zhijie Shen commented on YARN-3984:
-----------------------------------
In fact, metric has the same problem, but it may be still okay to ignore a
metric without any data.
> Rethink event column key issue
> ------------------------------
>
> Key: YARN-3984
> URL: https://issues.apache.org/jira/browse/YARN-3984
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Zhijie Shen
> Assignee: Vrushali C
> Fix For: YARN-2928
>
>
> Currently, the event column key is event_id?info_key?timestamp, which is not
> so friendly to fetching all the events of an entity and sorting them in a
> chronologic order. IMHO, timestamp?event_id?info_key may be a better key
> schema. I open this jira to continue the discussion about it which was
> commented on YARN-3908.
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