Github user WangTaoTheTonic commented on the pull request:
https://github.com/apache/spark/pull/5609#issuecomment-95787561
BTW I have tested on my cluster with setting
>export SPARK_DAEMON_MEMORY=1111m
export SPARK_DAEMON_JAVA_OPTS=" -Dx=y "
in spark-env.sh.
Before this patch the jinfo shows:
>
VM Flags:
-Xms512m -Xmx512m -XX:MaxPermSize=128m
After:
>VM Flags:
-Dx=y -Xms1111m -Xmx1111m -XX:MaxPermSize=128m
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