[jira] [Commented] (FLINK-26372) Allow to configure Changelog Storage per program

["Feifan Wang (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-26372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17562307#comment-17562307 ] 

Feifan Wang commented on FLINK-26372:
-------------------------------------

Hi [~roman] , I checked the code and not find no-op changelogStorage. If I understand correctly, changelogStorage will always be created whether or not changelog is enabled. Can you confirm that ?

> Allow to configure Changelog Storage per program
> ------------------------------------------------
>
>                 Key: FLINK-26372
>                 URL: https://issues.apache.org/jira/browse/FLINK-26372
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Configuration, Runtime / State Backends
>    Affects Versions: 1.15.0
>            Reporter: Roman Khachatryan
>            Assignee: Feifan Wang
>            Priority: Major
>             Fix For: 1.16.0
>
>
> It's currently possible to override state.backend.changelog.enabled per job, but it's not possible to override Changelog storage settings (i.e. writer settings).
> There should be 1) an API and 2) runtime support for that.
> See this [discussion|https://github.com/apache/flink/pull/16341#discussion_r663749681] and the corresponding [TODO|https://github.com/apache/flink/pull/16341/files#diff-2c21555dcab689ec27c0ab981852a2bfa787695fb2fe04b24c22b89c63d98b73R680].
>  



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