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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7272) Enable timeline collector fault tolerance
Date Tue, 10 Oct 2017 05:48:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16198201#comment-16198201
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Rohith Sharma K S commented on YARN-7272:
-----------------------------------------

thanks for clarifying doubts!
bq. Is there a specific concern about using leveldb to implement the WAL for transient persistence?

We don't have any concerns for using leveldb. Given delete operation can be performed, I would
also highly recommend for using 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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