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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-713) ResourceManager can exit unexpectedly if DNS is unavailable
Date Wed, 19 Feb 2014 23:01:24 GMT

    [ https://issues.apache.org/jira/browse/YARN-713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13906248#comment-13906248
] 

Hadoop QA commented on YARN-713:
--------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12629893/YARN-713.6.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 2 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/3124//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/3124//console

This message is automatically generated.

> 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: Jian He
>            Priority: Critical
>         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-713.3.patch, YARN-713.4.patch, YARN-713.5.patch,
YARN-713.6.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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