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Date: Mon, 17 Oct 2011 02:50:11 +0000 (UTC)
From: "Hudson (Commented) (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-3190) bin/yarn should barf early if
 HADOOP_COMMON_HOME or HADOOP_HDFS_HOME are not set
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-3190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13128610#comment-13128610 ] 

Hudson commented on MAPREDUCE-3190:
-----------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #1109 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/1109/])
    MAPREDUCE-3190. Ensure bin/yarn fails early with a clear error message when HADOOP_COMMON_HOME or HADOOP_HDFS_HOME are not set. Contributed by todd & acmurthy.

acmurthy : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1184975
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/bin/yarn

                
> bin/yarn should barf early if HADOOP_COMMON_HOME or HADOOP_HDFS_HOME are not set
> --------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3190
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3190
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.23.0
>
>         Attachments: mr-3190.txt, mr-3190.txt
>
>
> Currently, if these env vars are not set when you run bin/yarn, it will crash with various ClassNotFoundExceptions, having added {{/share/hadoop/hdfs}} to the classpath. Rather, we should check for these env vars in the wrapper script and display a reasonable error message.

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