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https://issues.apache.org/jira/browse/SPARK-4465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14253082#comment-14253082
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Apache Spark commented on SPARK-4465:
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User 'jongyoul' has created a pull request for this issue:
https://github.com/apache/spark/pull/3741
> runAsSparkUser doesn't affect TaskRunner in Mesos environment at all.
> ---------------------------------------------------------------------
>
> Key: SPARK-4465
> URL: https://issues.apache.org/jira/browse/SPARK-4465
> Project: Spark
> Issue Type: Bug
> Components: Input/Output, Mesos
> Reporter: Jongyoul Lee
> Fix For: 1.2.0, 1.3.0
>
>
> runAsSparkUser enable classes using hadoop library to change an active user
> to spark User, however in Mesos environment, because the function calls
> before running within JNI, runAsSparkUser doesn't affect anything, and
> meaningless code. fix the Appropriate scope of function and remove
> meaningless code. That's a bug because of running program incorrectly. That's
> related to SPARK-3223 but setting framework user is not perfect solution in
> my tests.
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