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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8393) hadoop-config.sh missing variable exports, causes Yarn jobs to fail with ClassNotFoundException MRAppMaster
Date Wed, 16 May 2012 04:28:15 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13276446#comment-13276446
] 

Hudson commented on HADOOP-8393:
--------------------------------

Integrated in Hadoop-Common-trunk-Commit #2250 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2250/])
    HADOOP-8393. hadoop-config.sh missing variable exports, causes Yarn jobs to fail with
ClassNotFoundException MRAppMaster. (phunt via tucu) (Revision 1338998)

     Result = SUCCESS
tucu : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1338998
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/bin/hadoop-config.sh

                
> hadoop-config.sh missing variable exports, causes Yarn jobs to fail with ClassNotFoundException
MRAppMaster
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8393
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8393
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: scripts
>            Reporter: Patrick Hunt
>            Assignee: Patrick Hunt
>             Fix For: 2.0.1
>
>         Attachments: HADOOP-8393.patch
>
>
> If you start a pseudo distributed yarn using "start-yarn.sh" you need to specify exports
for HADOOP_COMMON_HOME, HADOOP_HDFS_HOME, YARN_HOME, YARN_CONF_DIR, and HADOOP_MAPRED_HOME
in hadoop-env.sh (or elsewhere), otherwise the spawned node manager will be missing these
in it's environment. This is due to start-yarn using yarn-daemons. With this fix it's possible
to start yarn (etc...) with only HADOOP_CONF_DIR specified in the environment. Took some time
to track down this failure, so seems worthwhile to fix.

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