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https://issues.apache.org/jira/browse/MAPREDUCE-6619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15118127#comment-15118127
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shanyu zhao commented on MAPREDUCE-6619:
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+1 This fixed the regression we've been having. Thanks Junping!
> HADOOP_CLASSPATH is overwritten in MR container
> -----------------------------------------------
>
> Key: MAPREDUCE-6619
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6619
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 2.8.0, 2.7.2
> Reporter: shanyu zhao
> Assignee: Junping Du
> Attachments: MAPREDUCE-6619-branch-2.patch
>
>
> Previously env variable HADOOP_CLASSPAH in MR containers inherit from
> defaults of the worker node. MAPREDUCE-6454 introduced change to overwrite
> HADOOP_CLASSPATH completely. This caused regression. We need to add
> additional entries to HADOOP_CLASSPATH instead of completely replacing it.
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