Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/938#issuecomment-125622275
Actually, the failure is not a deadlock. It just seems that the run is so
slow that the test takes more than 5 minutes. The stack trace indicates that
various tasks are still running (one is actually just being deployed when the
"deadlock" is declared).
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