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https://issues.apache.org/jira/browse/MAPREDUCE-3068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13129139#comment-13129139
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Arun C Murthy commented on MAPREDUCE-3068:
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Chris - we should allow applications to override JAVA_HOME, HADOOP_COMMON_HOME,
HADOOP_HDFS_HOME and YARN_HOME. Thus, we want the putIfAbsent semantics when we
are setting them from either the NodeManager's environment or from the
admin.env.
Does that make sense? Thanks.
> Should set MALLOC_ARENA_MAX for all YARN daemons and AMs/Containers
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-3068
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3068
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Chris Riccomini
> Priority: Blocker
> Fix For: 0.23.0
>
> Attachments: MAPREDUCE-3068.diff, MAPREDUCE-3068.diff,
> MAPREDUCE-3068.diff, MAPREDUCE-3068.diff, MAPREDUCE-3068.diff,
> MAPREDUCE-3068.diff
>
>
> This is same as HADOOP-7154 but for yarn. RM, NM, AM and containers should
> all have this.
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