[jira] [Created] (FLINK-13476) Release partitions for FINISHED or FAILED tasks if they are cancelled

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-13476:
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             Summary: Release partitions for FINISHED or FAILED tasks if they are cancelled
                 Key: FLINK-13476
                 URL: https://issues.apache.org/jira/browse/FLINK-13476
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Coordination
            Reporter: Till Rohrmann
             Fix For: 1.9.0


With FLINK-12615 we removed that partitions are being explicitly released from the JM if an {{Execution}} which is in state {{FINISHED}} or {{FAILED}} is being cancelled. In order to not have resource leak when using pipelined result partitions whose consumers fail before start consuming, we should re-introduce the deleted else branch (removed via 408f6b67aefaccfc76708b2d4772eb7f0a8fd984).

Once we properly wait that a {{Task}} does not finish until its produced results have been either persisted or sent to a consumer, then we should be able to remove this branch again.



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