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https://issues.apache.org/jira/browse/FLINK-9574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tzu-Li (Gordon) Tai closed FLINK-9574.
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Resolution: Fixed
> Add a dedicated documentation page for state evolution
> ------------------------------------------------------
>
> Key: FLINK-9574
> URL: https://issues.apache.org/jira/browse/FLINK-9574
> Project: Flink
> Issue Type: Sub-task
> Components: Documentation, State Backends, Checkpointing, Type
> Serialization System
> Reporter: Tzu-Li (Gordon) Tai
> Assignee: Tzu-Li (Gordon) Tai
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.7.0
>
>
> Currently, the only bit of documentation about serializer upgrades / state
> evolution, is
> [https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/stream/state/custom_serialization.html#handling-serializer-upgrades-and-compatibility.],
> which only explains things at an API level.
> State evolution over the time has proved to be a rather complex topic that is
> often overlooked by users. Users would probably benefit from a actual
> full-grown dedicated page that covers both API, some necessary internal
> details regarding interplay of state serializers, best practices, and caution
> notices.
> I propose to add this documentation as a subpage under Streaming/State &
> Fault-Tolerance/.
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