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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