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https://issues.apache.org/jira/browse/FLINK-6984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jiayi Liao updated FLINK-6984:
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Fix Version/s: 1.12.0
> Do not recover CompletedCheckpointStore on every restore
> --------------------------------------------------------
>
> Key: FLINK-6984
> URL: https://issues.apache.org/jira/browse/FLINK-6984
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / State Backends
> Affects Versions: 1.2.1, 1.3.0, 1.4.0
> Reporter: Stefan Richter
> Assignee: Jiayi Liao
> Priority: Major
> Fix For: 1.12.0
>
>
> Currently, restoring the latest checkpoint always recovers the
> {{CompletedCheckpointStore}} in
> {{CheckpointCoordinator::restoreLatestCheckpointedState(...)}} by calling
> {{completedCheckpointStore.recover(sharedStateRegistry)}}. I think this is
> not required on every restore, but can happen only once when the JM becomes
> leader, e.g. when the {{CheckpointCoordinator}} is created. This can avoid
> unnecessary work and simplify the logic, e.g. for populating the
> {{SharedStateRegistry}}, and we could probably also move the ownership for
> {{SharedStateRegistry}} into some {{AbstractCompletedCheckpontStore}}.
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