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Posted to issues@flink.apache.org by "Piotr Nowojski (Jira)" <ji...@apache.org> on 2021/07/13 08:00:06 UTC

[jira] [Closed] (FLINK-16428) Fine-grained network buffer management for backpressure

     [ https://issues.apache.org/jira/browse/FLINK-16428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Piotr Nowojski closed FLINK-16428.
----------------------------------
    Resolution: Fixed

> Fine-grained network buffer management for backpressure
> -------------------------------------------------------
>
>                 Key: FLINK-16428
>                 URL: https://issues.apache.org/jira/browse/FLINK-16428
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / Network
>            Reporter: Zhijiang
>            Priority: Critical
>             Fix For: 1.14.0
>
>
> It is an umbrella ticket for tracing the progress of this improvement.
> This is the second ingredient to solve the “checkpoints under backpressure” problem (together with unaligned checkpoints). It consists of two steps:
>  * See if we can use less network memory in general for streaming jobs (with potentially different distribution of floating buffers in the input side)
>  * Under backpressure, reduce network memory to have less in-flight data (needs specification of algorithm and experiments)



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