[jira] [Assigned] (FLINK-25774) Restrict the maximum number of buffers can be used per result partition for sort-shuffle

["Yingjie Cao (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-25774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yingjie Cao reassigned FLINK-25774:
-----------------------------------

    Assignee: Yingjie Cao

> Restrict the maximum number of buffers can be used per result partition for sort-shuffle
> ----------------------------------------------------------------------------------------
>
>                 Key: FLINK-25774
>                 URL: https://issues.apache.org/jira/browse/FLINK-25774
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Network
>            Reporter: Yingjie Cao
>            Assignee: Yingjie Cao
>            Priority: Major
>             Fix For: 1.15.0
>
>
> Currently, for sort-shuffle, the maximum number of buffers can be used per result partition is Integer.MAX_VALUE. However, if too many buffers are taken by one result partition, other result partitions and input gates may spend too much time waiting for buffers which can influence performance. This ticket aims to restrict the maximum number of buffers can be used per result partition and the selected value is an empirical one based on the TPC-DS test results.



--
This message was sent by Atlassian Jira
(v8.20.1#820001)