Github user tnachen commented on the pull request:
https://github.com/apache/spark/pull/7966#issuecomment-128507132
Yes Mesos creates a directory for each task it runs. And if you run any
application with Mesos your current directory should be in that directory, or
else it's accessed by looking at MESOS_SANDBOX env variable.
So either we fix the code to use that as the default local dir for creating
temporary dirs in Mesos mode, or we keep the same permissions changes code
that's there for now since Standalone and Mesos mode are creating the
directories at the same place. Does that makes sense?
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