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https://issues.apache.org/jira/browse/YARN-3942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14729917#comment-14729917
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Bikas Saha commented on YARN-3942:
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In Option 1 the latency would be the time to read the entire session file for a
session that has run many DAGs, right?
Since we know the file size to be read, could we return a message saying
something like "scanning file size FOO. Expect BAR latency"?
> 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-3942.001.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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