Xinyuan Liu created FLINK-18165:
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Summary: When savingpoint is restored, select the checkpoint
directory and stateBackend
Key: FLINK-18165
URL: https://issues.apache.org/jira/browse/FLINK-18165
Project: Flink
Issue Type: New Feature
Affects Versions: 1.9.0
Environment: flink 1.9
Reporter: Xinyuan Liu
If the checkpoint file is used as the initial state of the savepoint startup,
it must be ensured that the state backend used before and after is the same
type, but in actual production, there will be more and more state, the
taskmanager memory is insufficient and the cluster cannot be expanded, and the
state backend needs to be switched at this time. And there is a need to ensure
data consistency. Unfortunately, currently flink does not provide an elegant
way to switch state backend, can the community consider this proposal
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