Github user rmetzger commented on the issue:
https://github.com/apache/flink/pull/3268
Hi Patrick,
the change looks good in general (you updated the documentation as well :)
).
One thing I'm missing a bit from the change is a test case.
We have an entire package (which is, admittedly pretty ugly) for YARN tests.
Maybe you can just pass your new config option to one of the existing tests
and then check if the tag has been set.
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