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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4250) hadoop-config.sh missing variable exports, causes Yarn jobs to fail with ClassNotFoundException MRAppMaster
Date Tue, 03 Jul 2012 18:02:20 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Joseph Evans updated MAPREDUCE-4250:
-------------------------------------------

    Fix Version/s:     (was: 2.0.1-alpha)
                   0.23.3
    
> hadoop-config.sh missing variable exports, causes Yarn jobs to fail with ClassNotFoundException
MRAppMaster
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4250
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4250
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Patrick Hunt
>            Assignee: Patrick Hunt
>             Fix For: 0.23.3
>
>         Attachments: MAPREDUCE-4250.patch
>
>
> This is the MR side of HADOOP-8393
> 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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