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Posted to issues@flink.apache.org by "Till Rohrmann (Jira)" <ji...@apache.org> on 2020/01/31 11:17:00 UTC

[jira] [Updated] (FLINK-8784) Share network buffer pool among different partition operators

     [ https://issues.apache.org/jira/browse/FLINK-8784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Till Rohrmann updated FLINK-8784:
---------------------------------
    Component/s:     (was: Runtime / Coordination)
                 Runtime / Network

> Share network buffer pool among different partition operators
> -------------------------------------------------------------
>
>                 Key: FLINK-8784
>                 URL: https://issues.apache.org/jira/browse/FLINK-8784
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / Network
>            Reporter: Garrett Li
>            Priority: Major
>
> A logical network connection exists for each point-to-point exchange of data over the network, which typically happens at repartitioning- or broadcasting steps (shuffle phase). et
> Currently Flink divide the network buffer pool evenly for every partition operators. Sometimes it could waste too many network buffers since we might have a lot of repartitioning and broadcasting in the one Flink job, and NOT all of the partition operators in the same job have the same traffic.



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