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https://issues.apache.org/jira/browse/FLINK-20976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dawid Wysakowicz resolved FLINK-20976.
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Release Note:
Flink’s savepoint binary format is unified across all state backends. That
means you can take a savepoint with one state backend and then restore it using
another.
If you want to switch the state backend you should first upgrade your Flink
version to 1.13 then take a savepoint with the new version, and only after
that, you can restore it with a different state backend.
Resolution: Fixed
> Unify Binary format for Keyed State savepoints
> ----------------------------------------------
>
> Key: FLINK-20976
> URL: https://issues.apache.org/jira/browse/FLINK-20976
> Project: Flink
> Issue Type: New Feature
> Components: Runtime / Checkpointing, Runtime / State Backends
> Reporter: Dawid Wysakowicz
> Assignee: Dawid Wysakowicz
> Priority: Major
> Fix For: 1.13.0
>
>
> The main goal of this proposal is the following:
> * Unify across all state backends a savepoint format for keyed state that is
> more future-proof and applicable for potential new state backends. Checkpoint
> formats, by definition, are still allowed to be backend specific.
> * Make it possible to switch a state backend via a savepoint
> * Rework abstractions related to snapshots and restoring, to reduce the
> overhead and code duplication when attempting to implement a new state
> backend.
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