[jira] [Updated] (FLINK-22678) Fix Loading Changelog Statebackend with configs set in job-level and cluster-level separately

["Roman Khachatryan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-22678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Roman Khachatryan updated FLINK-22678:
--------------------------------------
        Parent: FLINK-21352
    Issue Type: Sub-task  (was: Bug)

> Fix Loading Changelog Statebackend with configs set in job-level and cluster-level separately
> ---------------------------------------------------------------------------------------------
>
>                 Key: FLINK-22678
>                 URL: https://issues.apache.org/jira/browse/FLINK-22678
>             Project: Flink
>          Issue Type: Sub-task
>            Reporter: Yuan Mei
>            Priority: Major
>
> To enable/config Changelog Statebackend, we need to set
> 1. "state.backend.changelog.enabled" and
> 2. choose the state backend to be delegated
> These two configs can be set in both Job level or cluster level; Job level configs override Cluster level's.
> If no state backend is set, a default one (Mem) is set.
> There are two problems here:
> =====
> There are totally four combinations under this set up/overrides. The other three work fine except 
> "state.backend.changelog.enabled" in Job level, but state backend is chosen in cluster level.
> The info of "state.backend.changelog.enabled" is lost.



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