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https://issues.apache.org/jira/browse/FLINK-22678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuan Mei updated FLINK-22678:
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Summary: Hide ChangelogStateBackend From Users (was: Fix Loading
Changelog Statebackend with configs set in job-level and cluster-level
separately)
> Hide ChangelogStateBackend From Users
> --------------------------------------
>
> 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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