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https://issues.apache.org/jira/browse/YARN-7272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16194138#comment-16194138
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Rohith Sharma K S commented on YARN-7272:
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This proposal discussed in ATS weekly call, and one of the concern from
[~varun_saxena] is impact on performance if we use FileSystem. This need to be
validated before and after WAL implementations. As a part of this discussion,
also had thoughts on using level db for storing buffered entities. This also
need to be validated. Probably, we can provide interface to WAL writer so that
any efficient libraries can be plugged in either localFS or level db!
> Enable timeline collector fault tolerance
> -----------------------------------------
>
> Key: YARN-7272
> URL: https://issues.apache.org/jira/browse/YARN-7272
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineclient, timelinereader, timelineserver
> Reporter: Vrushali C
> Assignee: Rohith Sharma K S
>
> If a NM goes down and along with it the timeline collector aux service for a
> running yarn app, we would like that yarn app to re-establish connection with
> a new timeline collector.
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