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https://issues.apache.org/jira/browse/FLINK-4579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15504434#comment-15504434
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ASF GitHub Bot commented on FLINK-4579:
---------------------------------------

Github user StephanEwen commented on the issue:

    https://github.com/apache/flink/pull/2482
  
    Looks good. I think we could even go one step further and have a shortcut 
(`rocksdb`) similar to `filesystem` and `jobmanager`.
    
    We should then also have dedicated options, like 
`state.backend.rocksdb.checkpointdir`.


> Add StateBackendFactory for RocksDB Backend
> -------------------------------------------
>
>                 Key: FLINK-4579
>                 URL: https://issues.apache.org/jira/browse/FLINK-4579
>             Project: Flink
>          Issue Type: Improvement
>          Components: State Backends, Checkpointing
>            Reporter: Aljoscha Krettek
>            Assignee: Jark Wu
>
> Right now, we only have a {{StateBackendFactory}} for the {{FsStateBackend}} 
> which means that users cannot specify to use the RocksDB backend in the flink 
> configuration.
> If we add a factory for rocksdb we should also think about adding the rocksdb 
> backend to the standard distribution lib, otherwise it is only usable if 
> users manually place the rocks jars in the Flink lib folder.



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