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https://issues.apache.org/jira/browse/BEAM-2326?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kenneth Knowles resolved BEAM-2326.
-----------------------------------
Resolution: Fixed
Fix Version/s: 2.0.0
> Verbose INFO logging with stateful DoFns and Dataflow
> ------------------------------------------------------
>
> Key: BEAM-2326
> URL: https://issues.apache.org/jira/browse/BEAM-2326
> Project: Beam
> Issue Type: Bug
> Components: runner-dataflow
> Affects Versions: 0.6.0
> Reporter: peay
> Assignee: Kenneth Knowles
> Labels: log
> Fix For: 2.0.0
>
>
> I am seeing a lot of INFO level logging:
> {code}
> jsonPayload: {
> logger:
> "com.google.cloud.dataflow.worker.runners.worker.BatchModeUngroupingParDoFn"
> message: "Processing timers for key {} for stateful DoFn"
> }
> jsonPayload: {
> message: "Processing key KV{one of my keys} for stateful DoFn"
> logger:
> "com.google.cloud.dataflow.worker.runners.worker.BatchModeUngroupingParDoFn"
>
> }
> {code}
> 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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