[jira] [Created] (FLINK-12843) Refactor the pin logic in ResultPartition

[Shang Yuanchun (Jira)]

zhijiang created FLINK-12843:
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             Summary: Refactor the pin logic in ResultPartition
                 Key: FLINK-12843
                 URL: https://issues.apache.org/jira/browse/FLINK-12843
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Network
            Reporter: zhijiang
            Assignee: zhijiang


The pin logic is for adding the reference counter based on number of subpartitions in {{ResultPartition}}. It seems not necessary to do it in while loop as now, because the atomic counter would not be accessed by other threads during pin. If the `ResultPartition` is not created yet, the {{ResultPartition#createSubpartitionView}} would not be called and it would response {{ResultPartitionNotFoundException}} in {{ResultPartitionManager}}. 

So we could simple increase the reference counter in {{ResultPartition}} constructor directly.



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