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[jira] [Created] (FLINK-10098) Programmatically select timer storage backend

Elias Levy created FLINK-10098:

             Summary: Programmatically select timer storage backend
                 Key: FLINK-10098
                 URL: https://issues.apache.org/jira/browse/FLINK-10098
             Project: Flink
          Issue Type: Improvement
          Components: State Backends, Checkpointing, Streaming, TaskManager
    Affects Versions: 1.6.0, 1.7.0
            Reporter: Elias Levy

FLINK-9486 introduced timer storage on the RocksDB storage backend.  Right now it is only possible to configure RocksDB as the storage for timers by settings the {{state.backend.rocksdb.timer-service.factory}} value in the configuration file for Flink.

As the state storage backend can be programmatically selected by by jobs via  {{env.setStateBackend(...)}}, the timer backend should also be configurable programmatically.

Different jobs should be able to store their timers in different storage backends.

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