[jira] [Created] (FLINK-12842) Fix invalid check released state during ResultPartition#createSubpartitionView

[Shang Yuanchun (Jira)]

zhijiang created FLINK-12842:
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             Summary: Fix invalid check released state during ResultPartition#createSubpartitionView
                 Key: FLINK-12842
                 URL: https://issues.apache.org/jira/browse/FLINK-12842
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Network
            Reporter: zhijiang
            Assignee: zhijiang


Currently in {{ResultPartition#createSubpartitionView}} it would check whether this partition is released before creating view. But this check is based on {{refCnt != -1}} which seems invalid, because the reference counter would not always reflect the released state.

In the case of {{ResultPartition#release/fail}}, the reference counter is not set to -1. Even if in the case of {{ResultPartition#onConsumedSubpartition}}, the reference counter seems also no chance to be -1.

So we could check the real {{isReleased}} state during creating view instead of reference counter.



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