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From "peay (JIRA)" <>
Subject [jira] [Created] (BEAM-2326) Verbose INFO logging with stateful DoFns and Dataflow
Date Fri, 19 May 2017 15:02:04 GMT
peay created BEAM-2326:

             Summary: Verbose INFO logging with stateful DoFns and Dataflow 
                 Key: BEAM-2326
             Project: Beam
          Issue Type: Bug
          Components: runner-dataflow
    Affects Versions: 0.6.0
            Reporter: peay
            Assignee: Daniel Halperin

I am seeing a lot of INFO level logging:

 jsonPayload: {
  logger: "" 
  message: "Processing timers for key {} for stateful DoFn"    
 jsonPayload: {
  message: "Processing key KV{one of my keys} for stateful DoFn"    
  logger: ""   


out of one of my stateful DoFn. There is one such group of logs for each key I process, which
leads to a very large amount of logs and possibly to a significant slowdown.

Also, not sure if the {{Processing timers}} log message is missing some string interpolation
or if the empty key is on purpose.

At any rate, this seems more like something for {{DEBUG}} than {{INFO}} given the large volume.

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