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Posted to issues@flink.apache.org by "Piotr Nowojski (Jira)" <ji...@apache.org> on 2020/05/19 13:49:00 UTC
[jira] [Updated] (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 updated FLINK-16428:
-----------------------------------
Fix Version/s: (was: 1.11.0)
1.12.0
> 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
> Assignee: Zhijiang
> Priority: Critical
> Fix For: 1.12.0
>
>
> 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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