[jira] [Commented] (FLINK-17421) Backpressure new checkpoints if previous were not managed to be cleaned up yet

["Steven Zhen Wu (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-17421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17093792#comment-17093792 ] 

Steven Zhen Wu commented on FLINK-17421:
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what does "backpressure new checkpoints" mean? are we suggesting delaying the triggering of the next checkpoint.

In our setup, we only allows one concurrent checkpoint. I assume that this potential change doesn't matter to us?

 

> Backpressure new checkpoints if previous were not managed to be cleaned up yet 
> -------------------------------------------------------------------------------
>
>                 Key: FLINK-17421
>                 URL: https://issues.apache.org/jira/browse/FLINK-17421
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / Checkpointing
>    Affects Versions: 1.7.2, 1.8.3, 1.9.3, 1.10.0
>            Reporter: Piotr Nowojski
>            Priority: Major
>
> As reported in FLINK-17073, ioExecutor might not manage to clean up checkpoints quickly enough causing ever growing memory consumption. A proposed solution would be to backpressure new checkpoints in that scenario.



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