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https://issues.apache.org/jira/browse/YARN-3942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14940307#comment-14940307
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Jason Lowe commented on YARN-3942:
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I think the best way forward is to get the original patch cleaned up and
integrated, as a number of people are already using them as-is. Then we can
address extensions like the leveldb cache enhancement and finer granularity
caching in subsequent JIRAs which will help keep the patches more reasonably
sized. I'll be putting up a patch to address Jonathan's recent comment soon,
and hopefully I'll have time to add some unit tests shortly afterwards.
> Timeline store to read events from HDFS
> ---------------------------------------
>
> Key: YARN-3942
> URL: https://issues.apache.org/jira/browse/YARN-3942
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: timelineserver
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Attachments: YARN-3942-leveldb.001.patch,
> YARN-3942-leveldb.002.patch, YARN-3942.001.patch
>
>
> This adds a new timeline store plugin that is intended as a stop-gap measure
> to mitigate some of the issues we've seen with ATS v1 while waiting for ATS
> v2. The intent of this plugin is to provide a workable solution for running
> the Tez UI against the timeline server on a large-scale clusters running many
> thousands of jobs per day.
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