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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7272) Enable timeline collector fault tolerance
Date Fri, 06 Oct 2017 15:54:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16194763#comment-16194763
] 

Jason Lowe commented on YARN-7272:
----------------------------------

Leveldb seems like a great fit for this, IMO.  It has high performance for writes and works
quite well in the nodemanager use-case.  This case seems identical in that the collector would
write to the database and only read upon recovery.  Leveldb is already a dependency used in
multiple places, and I'd hate to see us add yet another dependency or reinvent the wheel here.


> 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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