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[jira] [Created] (FLINK-9479) Let the rescale API to use local recovery

Sihua Zhou created FLINK-9479:

             Summary: Let the rescale API to use local recovery
                 Key: FLINK-9479
                 URL: https://issues.apache.org/jira/browse/FLINK-9479
             Project: Flink
          Issue Type: Improvement
          Components: REST, State Backends, Checkpointing
    Affects Versions: 1.5.0
            Reporter: Sihua Zhou

Currently, flink's online rescale api operates as the follow:
- trigger savepoint for the job
- rescaling the job from the savepoint

We should improve it to use the local recovery to speed up it and reduce the network pressure.

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