Github user tzulitai commented on the issue:
https://github.com/apache/flink/pull/3776
@Rucongzhang ok, understood. I agree that in general the current
`AbstractYarnClusterDescriptor` has poor separation of concerns, as is a bit
hard to write contained tests. We should remember to add this perhaps when
refactoring it for FLIP-6.
I'll give this a test run on YARN and then merge it :)
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