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Posted to dev@kafka.apache.org by "Greg Fodor (JIRA)" <ji...@apache.org> on 2016/05/30 06:50:12 UTC

[jira] [Created] (KAFKA-3769) KStream job spending 60% of time writing metrics

Greg Fodor created KAFKA-3769:
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             Summary: KStream job spending 60% of time writing metrics
                 Key: KAFKA-3769
                 URL: https://issues.apache.org/jira/browse/KAFKA-3769
             Project: Kafka
          Issue Type: Bug
          Components: streams
    Affects Versions: 0.10.0.0
            Reporter: Greg Fodor
            Assignee: Guozhang Wang
            Priority: Critical


I've been profiling a complex streams job, and found two major hotspots when writing metrics, which take up about 60% of the CPU time of the job. (!) A PR is attached.



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