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https://issues.apache.org/jira/browse/TEZ-1127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14044906#comment-14044906
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Hitesh Shah commented on TEZ-1127:
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Also, the way to turn it off is to set your own Xmx value :). The patch ( which
will be for TEZ-699 ) looks for Xmx and only adds its values if Xmx is not
found in the original java opts.
> Add TEZ_TASK_JAVA_OPTS and TEZ_ENV configs to specify values from config
> ------------------------------------------------------------------------
>
> Key: TEZ-1127
> URL: https://issues.apache.org/jira/browse/TEZ-1127
> Project: Apache Tez
> Issue Type: Sub-task
> Affects Versions: 0.4.0
> Reporter: Pala M Muthaia
> Assignee: Bikas Saha
> Fix For: 0.5.0
>
> Attachments: PIG-TEZ-1127.patch, TEZ-1127.1.patch, TEZ-1127.2.patch
>
>
> There is no global setting available to specify JVM parameters for tez tasks
> (e.g: specifying native library location with java.library.path). Yarn allows
> specifying application.classpath, but not java opts. The only option right
> now is to set mapreduce.map.java.opts in the tez job config (or
> hive.tez.java.opts for Hive on Tez).
> Suggestion from Bikas, while discussing this in tez-user group, is tez should
> have "TEZ_TASK_JAVA_OPTS so that you don’t have to specify this via mapreduce
> configuration parameters"
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