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https://issues.apache.org/jira/browse/HADOOP-13773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15626142#comment-15626142
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Ravi Prakash commented on HADOOP-13773:
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Thanks for your contribution Fei Hui and for your careful review Yuanbo Liu!
I've committed this to branch-2 and branch-2.8.
> wrong HADOOP_CLIENT_OPTS in hadoop-env on branch-2
> ---------------------------------------------------
>
> Key: HADOOP-13773
> URL: https://issues.apache.org/jira/browse/HADOOP-13773
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Affects Versions: 2.6.1, 2.7.3
> Reporter: Fei Hui
> Attachments: HADOOP-13773.patch
>
>
> in conf/hadoop-env.sh,
> export HADOOP_CLIENT_OPTS="-Xmx512m $HADOOP_CLIENT_OPTS"
> when i set HADOOP_HEAPSIZE ,and run 'hadoop jar ...', jvm args is not work.
> i see, in bin/hadoop,
> exec "$JAVA" $JAVA_HEAP_MAX $HADOOP_OPTS $CLASS "$@"
> HADOOP_OPTS is behind JAVA_HEAP_MAX, so HADOOP_HEAPSIZE is not work.
> for example i run 'HADOOP_HEAPSIZE=1024 hadoop jar ...' , the java process is
> 'java -Xmx1024m ... -Xmx512m...', then Xmx512m is valid， and Xmx1024m is
> invalid
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