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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-848) Nodemanager does not register with RM using the fully qualified hostname
Date Wed, 19 Jun 2013 10:43:25 GMT

    [ https://issues.apache.org/jira/browse/YARN-848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13687847#comment-13687847

Hudson commented on YARN-848:

Integrated in Hadoop-Yarn-trunk #245 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/245/])
    YARN-848. Fix NodeManager to register with RM using the fully qualified hostname. Contributed
by Hitesh Shah. (Revision 1494385)

     Result = FAILURE
sseth : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1494385
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/ContainerManagerImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/TestContainerManager.java

> Nodemanager does not register with RM using the fully qualified hostname
> ------------------------------------------------------------------------
>                 Key: YARN-848
>                 URL: https://issues.apache.org/jira/browse/YARN-848
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Hitesh Shah
>            Assignee: Hitesh Shah
>             Fix For: 2.1.0-beta
>         Attachments: YARN-848.1.patch, YARN-848.3.patch
> If the hostname is misconfigured to not be fully qualified ( i.e. hostname returns foo
and hostname -f returns foo.bar.xyz ), the NM ends up registering with the RM using only "foo".
This can create problems if DNS cannot resolve the hostname properly. 
> Furthermore, HDFS uses fully qualified hostnames which can end up affecting locality
matches when allocating containers based on block locations. 

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