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https://issues.apache.org/jira/browse/MAPREDUCE-6822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fei Hui reassigned MAPREDUCE-6822:
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Assignee: Fei Hui
> should set HADOOP_JOB_HISTORYSERVER_HEAPSIZE only if it's empty on branch2
> --------------------------------------------------------------------------
>
> Key: MAPREDUCE-6822
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6822
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: scripts
> Affects Versions: 2.9.0
> Reporter: Fei Hui
> Assignee: Fei Hui
> Priority: Major
> Fix For: 2.9.0
>
> Attachments: HADOOP-13898-branch-2.001.patch,
> HADOOP-13898-branch-2.002.patch
>
>
> In mapred-env, set HADOOP_JOB_HISTORYSERVER_HEAPSIZE 1000 by default, That is
> incorrect.
> We should set it 1000 by default only if it's empty.
> Because if you run 'HADOOP_JOB_HISTORYSERVER_HEAPSIZE =512
> $HADOOP_HOME/sbin/mr-jobhistory-daemon.sh start historyserver',
> HADOOP_JOB_HISTORYSERVER_HEAPSIZE will be set 1000, rather than 512.
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