[jira] [Created] (FLINK-5664) RocksDBBackend logging is noisy

[Shang Yuanchun (Jira)]

Ufuk Celebi created FLINK-5664:
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             Summary: RocksDBBackend logging is noisy
                 Key: FLINK-5664
                 URL: https://issues.apache.org/jira/browse/FLINK-5664
             Project: Flink
          Issue Type: Improvement
          Components: State Backends, Checkpointing
            Reporter: Ufuk Celebi


Running a job with rocks db and a low checkpointing interval the logs are flooded with

{code}
2017-01-26 17:29:39,345 INFO  org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend  - Asynchronous RocksDB snapshot (File Stream Factory @ file:/Users/uce/Desktop/1-2-testing/fs/83889867a493a1dc80f6c588c071b679, synchronous part) in thread Thread[Flat Map -> Sink: Unnamed (3/8),5,Flink Task Threads] took 0 ms.
2017-01-26 17:29:39,398 INFO  org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend  - Asynchronous RocksDB snapshot (File Stream Factory @ file:/Users/uce/Desktop/1-2-testing/fs/83889867a493a1dc80f6c588c071b679, asynchronous part) in thread Thread[pool-88-thread-1,5,Flink Task Threads] took 53 ms.
{code}

Two log lines per stateful task per task manager per checkpoint. I can see that this is helpful for debugging, but maybe too much by default. Should we decrease the log level to debug?




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