Zhu Zhu created FLINK-21734:
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Summary: Allow BLOCKING result partition to be individually
consumable
Key: FLINK-21734
URL: https://issues.apache.org/jira/browse/FLINK-21734
Project: Flink
Issue Type: Improvement
Components: Runtime / Coordination
Affects Versions: 1.13.0
Reporter: Zhu Zhu
Currently a BLOCKING result partition is consumable only when all the
partitions of the corresponding IntermediateResult become consumable. This is
an unnecessary complication and has caused some problems (FLINK-21707).
Therefore I propose to simplify it to let BLOCKING result partitions be
consumable individually.
Note that this will result in the scheduling to become execution-vertex-wise
instead of stage-wise, with a nice side effect towards better resource
utilization. The PipelinedRegionSchedulingStrategy can be simplified along with
change to get rid of the {{correlatedResultPartitions}}.
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