[jira] [Created] (BEAM-3488) Reduce log noise coming from File sink

["Pawel Bartoszek (JIRA)" <ji...@apache.org>]

Pawel Bartoszek created BEAM-3488:
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             Summary: Reduce log noise coming from File sink
                 Key: BEAM-3488
                 URL: https://issues.apache.org/jira/browse/BEAM-3488
             Project: Beam
          Issue Type: Improvement
          Components: sdk-java-core
    Affects Versions: 2.2.0
            Reporter: Pawel Bartoszek
            Assignee: Kenneth Knowles


After switching to Beam 2.2 I noticed that File sink related classes generate lots of lines likes this:
{code:java}
2018-01-16 01:37:37,080 INFO org.apache.beam.sdk.io.FileBasedSink - No output files to write.
2018-01-16 01:37:37,104 INFO org.apache.beam.sdk.io.WriteFiles - Will finalize 0 files{code}
 

I did some counts and it looks like this lines account for 82% of all lines in the log yet not giving much information.

I am happy to raise a PR to make "No output files to write." and "Will finalize {} files" logged at DEBUG level.



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