Github user tillrohrmann commented on the pull request:
https://github.com/apache/flink/commit/3400a87dce9940ac8da95c89ff9791ca6a687776#commitcomment-20662491
In
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java:
In
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java
on line 967:
At the moment, there is no ack being sent back to the TM. What could
however happen is that the message never receives the JM and the TM thinks that
the checkpoint has been completed. In this case, we would have state lingering
around.
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