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Posted to dev@flink.apache.org by "Yingjie Cao (Jira)" <ji...@apache.org> on 2022/02/04 11:33:00 UTC

[jira] [Created] (FLINK-25960) Distribute the data read buffers more fairly among result partitions for sort-shuffle

Yingjie Cao created FLINK-25960:
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             Summary: Distribute the data read buffers more fairly among result partitions for sort-shuffle
                 Key: FLINK-25960
                 URL: https://issues.apache.org/jira/browse/FLINK-25960
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Network
            Reporter: Yingjie Cao
             Fix For: 1.15.0


Currently, the data read buffers for sort-shuffle are allocated in a random way and some result partitions may occupy too many buffers which leads to the starvation of other result partitions. This ticket aims to improve the scenario by not reading data for those result partitions which already occupy more than the average number of read buffers per result partition.



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