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https://issues.apache.org/jira/browse/FLINK-19938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17303119#comment-17303119
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Yingjie Cao commented on FLINK-19938:
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[~dahaishuantuoba] I will update the PR this week, this PR will be merged into
1.13, you can also try it after the PR is merged, because the PR is still under
review and some implementation may be changed before merged.
> Implement shuffle data read scheduling for sort-merge blocking shuffle
> ----------------------------------------------------------------------
>
> Key: FLINK-19938
> URL: https://issues.apache.org/jira/browse/FLINK-19938
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Network
> Reporter: Yingjie Cao
> Assignee: Yingjie Cao
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.13.0
>
>
> As described in
> [https://cwiki.apache.org/confluence/display/FLINK/FLIP-148%3A+Introduce+Sort-Merge+Based+Blocking+Shuffle+to+Flink.]
> shuffle IO scheduling is important for performance. We'd like to Introduce
> it to sort-merge shuffle first.
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