Github user ramkrish86 commented on the issue:
https://github.com/apache/flink/pull/2342
github build shows two failure
>
org.apache.flink.test.checkpointing.EventTimeWindowCheckpointingITCase.org.apache.flink.test.checkpointing.EventTimeWindowCheckpointingITCase
org.apache.flink.test.checkpointing.StreamCheckpointingITCase.org.apache.flink.test.checkpointing.StreamCheckpointingITCase
Both seems to be unrelated.
Two travis build hung. Rest of them passed.
> https://travis-ci.org/apache/flink/jobs/151785550
https://travis-ci.org/apache/flink/jobs/151785556
Not sure of the problem.
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