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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3942) Timeline store to read events from HDFS
Date Tue, 28 Jul 2015 02:46:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643790#comment-14643790
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Zhijie Shen commented on YARN-3942:
-----------------------------------

Thanks for this work. Agree it's a good interim step between v1 and v2. I have a first scan
of this patch, and am fine with the idea overall. As far as I can tell, the unsupported case
is to get entities of the same type across applications. Other than that, the HDFS data path
seems to work fine. [~jlowe], if you'd like to elaborate the drawback a bit, it will be helpful.

Will continue to review the patch, and post more detailed comments.

> 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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