[GitHub] flink issue #4583: [FLINK-7506] Fence JobMaster

[tillrohrmann]

Github user tillrohrmann commented on the issue:

    https://github.com/apache/flink/pull/4583
  
    Failing test case 
`JobManagerCleanupITCase.testBlobServerCleanupCancelledJo` is unrelated. 
Merging this PR.


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