[jira] [Created] (FLINK-5962) Cancel checkpoint canceller tasks in CheckpointCoordinator

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-5962:
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             Summary: Cancel checkpoint canceller tasks in CheckpointCoordinator
                 Key: FLINK-5962
                 URL: https://issues.apache.org/jira/browse/FLINK-5962
             Project: Flink
          Issue Type: Bug
          Components: State Backends, Checkpointing
    Affects Versions: 1.2.0, 1.3.0
            Reporter: Till Rohrmann
            Priority: Critical


The {{CheckpointCoordinator}} register a canceller task for each running checkpoint. The canceller task's responsibility is to cancel a checkpoint if it takes too long to complete. We should cancel this task as soon as the checkpoint has been completed, because otherwise we will keep many canceller tasks around. This can eventually lead to an OOM exception.



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