Yue Ma created FLINK-37552:
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Summary: Made StateMetaInfo consistent for ForStKeyeStateBackend
and ForStSyncKeyeStateBackend.
Key: FLINK-37552
URL: https://issues.apache.org/jira/browse/FLINK-37552
Project: Flink
Issue Type: Sub-task
Components: Runtime / State Backends
Affects Versions: 2.0.0
Reporter: Yue Ma
Fix For: 2.1.0
Currently, if MapState or ListState is used, the StateMeta information saved
by ForStKeyeStateBackend and ForStSyncKeyeStateBackend when making cp may be
inconsistent, which may cause incompatible states. For example, when using
MapState, ForStKeyeStateBackend will save the ValueSerializer information in
StateMeta, but ForStSyncKeyeStateBackend will save the MapSerializer
information. So we need to unify this place and perform a transformation when
ForStKeyeStateBackend creates stateMeta
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