Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/3335
Thank you for the contribution. I see the idea behind the fix.
I am unsure whether we should let Flink manage the permissions of these
directories. My gut feeling is that this is something that the operational
setup should be taking care of. For example some setup may want to keep
whatever is the pre-defined permission, to make checkpoints accessible by other
groups for the purpose of cloning/migrating jobs to other clusters.
That is something probably worth of a mailing list discussion.
I would put this on hold until we have a decision there.
If we want this change, we still need to do it a bit different, as we are
trying to make Flink work without any dependencies to Hadoop (Hadoop is still
supported perfectly, but is an optional dependencies).
Adding new hard Hadoop dependencies (like here) is not possible due to that.
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