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https://issues.apache.org/jira/browse/FLINK-18404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Piotr Nowojski updated FLINK-18404:
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Priority: Critical (was: Major)
> Make unaligned checkpoints rescalable
> -------------------------------------
>
> Key: FLINK-18404
> URL: https://issues.apache.org/jira/browse/FLINK-18404
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Checkpointing
> Affects Versions: 1.12.0
> Reporter: Arvid Heise
> Priority: Critical
>
> Currently, the in-flight data of unaligned checkpoints is not handled
> properly in rescaling scenarios. We guarded with a fail-safe exception
> against it. A proper rescaling support would increase the benefits of
> unaligned checkpoints.
> To rescale in-flight data, the state shard needs to be redistributed across
> all new assigned tasks and some additional filter needs to ensure that only
> the relevant key-groups are actually recovered (or processed).
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