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https://issues.apache.org/jira/browse/KAFKA-3769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15468157#comment-15468157
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Guozhang Wang commented on KAFKA-3769:
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Yes please :) Also is it a general issue in {{Selector}} class, or a specific
issue in Kafka Streams?
> 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
> Fix For: 0.10.1.0
>
>
> 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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