[jira] [Closed] (FLINK-30902) Partition reuse does not take effect on edges of hybrid selective type

["Xintong Song (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-30902?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xintong Song closed FLINK-30902.
--------------------------------
    Resolution: Done

- master (1.18): 4fb5f5e48aeeedba724dd1b44f2b819b40011944
- release-1.17: e35c97e45ba2bbeeb36c0947ad09533e362dc0c8

> Partition reuse does not take effect on edges of hybrid selective type
> ----------------------------------------------------------------------
>
>                 Key: FLINK-30902
>                 URL: https://issues.apache.org/jira/browse/FLINK-30902
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Coordination
>    Affects Versions: 1.17.0
>            Reporter: Weijie Guo
>            Assignee: Weijie Guo
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.17.0
>
>
> Partition reuse only take effect for re-consumable edge, but hybrid selective result partition is not re-consumable. This optimization is very important to reduce the cost of the shuffle write phase. In the previous implementation, we will only force the broadcast edge to be of hybrid full(re-consumable) in the 'ResultPartitionTypeFactory'. As a result, for ALL_ EXCHANGE_HYBRID_SELECTIVE job, partition reuse cannot take effect for non-broadcast edges.
> In fact, we expected to replace all the edges that can be reused with hybrid full result partition.



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