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https://issues.apache.org/jira/browse/TEZ-1127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14044824#comment-14044824
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Bikas Saha commented on TEZ-1127:
---------------------------------
[~jeagles][~rohini] The following changes are not needed and the code can be
removed completely. There is no need to use the MRHelper method anymore since
Tez will automatically use the right (existing values) as default. You need to
change that conf only if you explicitly want add some specific cmd line opts.
So the correct fix after this patch is to remove this code.
{code}- dagAMConf.setIfUnset(TezConfiguration.TEZ_AM_JAVA_OPTS,
+ dagAMConf.setIfUnset(TezConfiguration.TEZ_AM_LAUNCH_CMD_OPTS,
org.apache.tez.mapreduce.hadoop.MRHelpers
.getMRAMJavaOpts(tezConf));{code}
> 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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