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Date: Fri, 15 Sep 2017 01:35:02 +0000 (UTC)
From: "Junping Du (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13099986.1504654116000.118889.1505439302354@Atlassian.JIRA>
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Subject: [jira] [Commented] (YARN-7162) Remove XML excludes file format
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archived-at: Fri, 15 Sep 2017 01:35:09 -0000


    [ https://issues.apache.org/jira/browse/YARN-7162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16167210#comment-16167210 ] 

Junping Du commented on YARN-7162:
----------------------------------

bq. Given that code freeze for Hadoop 3 beta 1 is tomorrow (Sept 15), perhaps we should compromise by removing this for now from branch-3.0 but leave it in trunk, and revisit this for 3.1.0?
+1. This sounds more reasonable. We may revisit this a couple of month from now to see what to do for XML format.

> Remove XML excludes file format
> -------------------------------
>
>                 Key: YARN-7162
>                 URL: https://issues.apache.org/jira/browse/YARN-7162
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: graceful
>    Affects Versions: 2.9.0, 3.0.0-beta1
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>            Priority: Blocker
>         Attachments: YARN-7162.001.patch, YARN-7162.branch-2.001.patch
>
>
> YARN-5536 aims to replace the XML format for the excludes file with a JSON format.  However, it looks like we won't have time for that for Hadoop 3 Beta 1.  The concern is that if we release it as-is, we'll now have to support the XML format as-is for all of Hadoop 3.x, which we're either planning on removing, or rewriting using a pluggable framework.  
> [This comment in YARN-5536|https://issues.apache.org/jira/browse/YARN-5536?focusedCommentId=16126194&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16126194] proposed two quick solutions to prevent this compat issue.  In this JIRA, we're going to remove the XML format.  If we later want to add it back in, YARN-5536 can add it back, rewriting it to be in the pluggable framework.


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