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Posted to issues@flink.apache.org by "Elias Levy (JIRA)" <ji...@apache.org> on 2018/09/20 00:10:00 UTC

[jira] [Created] (FLINK-10372) There is no API to configure the timer state backend

Elias Levy created FLINK-10372:
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             Summary: There is no API to configure the timer state backend
                 Key: FLINK-10372
                 URL: https://issues.apache.org/jira/browse/FLINK-10372
             Project: Flink
          Issue Type: Improvement
          Components: DataStream API, State Backends, Checkpointing
    Affects Versions: 1.6.0
            Reporter: Elias Levy


Flink 1.6.0, via FLINK-9485, introduced the option to store timers in RocksDB instead of the heap.  Alas, this can only be configured via the {{state.backend.rocksdb.timer-service.factory}} config file option.  That means that the choice of state backend to use for timer can't be made on a per job basis on a shared cluster.

There is a need for an API in {{RocksDBStateBackend}} to configure the backend per job.



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