[jira] [Created] (FLINK-7700) State merging in RocksDB backend leaves old state

[Shang Yuanchun (Jira)]

Aljoscha Krettek created FLINK-7700:
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             Summary: State merging in RocksDB backend leaves old state
                 Key: FLINK-7700
                 URL: https://issues.apache.org/jira/browse/FLINK-7700
             Project: Flink
          Issue Type: Bug
          Components: State Backends, Checkpointing
    Affects Versions: 1.3.2, 1.4.0
            Reporter: Aljoscha Krettek
            Assignee: Aljoscha Krettek
            Priority: Blocker
             Fix For: 1.4.0, 1.3.3


{{RocksDBAggregatingState.mergeNamespaces(...)}}, {{RocksDBReducingState.mergeNamespaces(...)}}, and {{RocksDBListState.mergeNamespaces(...)}} don't remove state from the old location when merging. This means that merged state will never be cleaned up and will accumulate.



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