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From "Omkar Vinit Joshi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-713) ResourceManager can exit unexpectedly if DNS is unavailable
Date Wed, 20 Nov 2013 21:38:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13828155#comment-13828155
] 

Omkar Vinit Joshi commented on YARN-713:
----------------------------------------

Also fixed YARN-1417 as a part of this. It is straight forward.

> ResourceManager can exit unexpectedly if DNS is unavailable
> -----------------------------------------------------------
>
>                 Key: YARN-713
>                 URL: https://issues.apache.org/jira/browse/YARN-713
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Jason Lowe
>            Assignee: Omkar Vinit Joshi
>            Priority: Critical
>             Fix For: 2.3.0
>
>         Attachments: YARN-713.09052013.1.patch, YARN-713.09062013.1.patch, YARN-713.1.patch,
YARN-713.2.patch, YARN-713.20130910.1.patch, YARN-713.patch, YARN-713.patch, YARN-713.patch,
YARN-713.patch
>
>
> As discussed in MAPREDUCE-5261, there's a possibility that a DNS outage could lead to
an unhandled exception in the ResourceManager's AsyncDispatcher, and that ultimately would
cause the RM to exit.  The RM should not exit during DNS hiccups.



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