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https://issues.apache.org/jira/browse/FLINK-25786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17482953#comment-17482953
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Yun Gao commented on FLINK-25786:
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Fix on master via 8bd62ec0819d73b7b42d74835b3077f7f25ab48d
> Adjust the generation of subpartition data storage order for sort-shuffle
> from random shuffle to random shift
> -------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-25786
> URL: https://issues.apache.org/jira/browse/FLINK-25786
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Network
> Reporter: Yingjie Cao
> Assignee: Yingjie Cao
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.15.0
>
>
> Currently, for sort-shuffle the generation of subpartition data storage order
> is random shuffle. However, if there is no enough resources to run the
> downstream consumer tasks in parallel, the performance can be influenced
> because of the random disk IO caused by the random subpartition data storage
> order. This ticket aims to improve this scenario.
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