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[jira] [Created] (FLINK-10040) Decompose RocksDBKeyedStateBackend

Stefan Richter created FLINK-10040:

             Summary: Decompose RocksDBKeyedStateBackend
                 Key: FLINK-10040
                 URL: https://issues.apache.org/jira/browse/FLINK-10040
             Project: Flink
          Issue Type: Improvement
          Components: State Backends, Checkpointing
            Reporter: Stefan Richter
            Assignee: Stefan Richter

Over time, the class {{RocksDBKeyedStateBackend}} has grown to around 3000 LOC, with a lot of inner classes (different checkpoint/restore strategies, iterators, etc).

I suggest to decompose it and improve how dependencies to the classes are provided in construction, so that things become better to maintain, extend, and test.

Will break down this work into multiple tasks, ordered by estimated difficulty/time required.

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