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https://issues.apache.org/jira/browse/FLINK-25261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17463647#comment-17463647
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Roman Khachatryan commented on FLINK-25261:
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On checkpoint subsumption, actual state is deleted on DFS.
On materialization, in-memory data SHOULD be cleaned up in writer. This is what
is currently missing. It is safe to do by definition of materialization:
backend will no longer use these changes once materialized.
> Changelog not truncated on materialization
> ------------------------------------------
>
> Key: FLINK-25261
> URL: https://issues.apache.org/jira/browse/FLINK-25261
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends
> Affects Versions: 1.15.0
> Reporter: Roman Khachatryan
> Assignee: Roman Khachatryan
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.15.0
>
>
> [https://github.com/apache/flink/blob/dcc4d43e413b20f70036e73c61d52e2e1c5afee7/flink-state-backends/flink-statebackend-changelog/src/main/java/org/apache/flink/state/changelog/ChangelogKeyedStateBackend.java#L640]
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