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Posted to issues@flink.apache.org by "Weijie Guo (Jira)" <ji...@apache.org> on 2023/09/20 11:13:00 UTC

[jira] [Commented] (FLINK-33044) Reduce the frequency of triggering flush for the disk tier of the tiered storage

    [ https://issues.apache.org/jira/browse/FLINK-33044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17767089#comment-17767089 ] 

Weijie Guo commented on FLINK-33044:
------------------------------------

master(1.19) via b076c52d8da914e81c3e004c0b0c7883463bb151.

> Reduce the frequency of triggering flush for the disk tier of the tiered storage
> --------------------------------------------------------------------------------
>
>                 Key: FLINK-33044
>                 URL: https://issues.apache.org/jira/browse/FLINK-33044
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Network
>    Affects Versions: 1.18.0
>            Reporter: Yuxin Tan
>            Assignee: Yuxin Tan
>            Priority: Major
>
> The disk cache of tiered storage will flush at the end of each subpartition's segment, which is too frequent and is bad for performance. We should improve it with some better flushing methods, e.g. flushing buffers with batch.



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