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https://issues.apache.org/jira/browse/SPARK-20863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16022192#comment-16022192
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Apache Spark commented on SPARK-20863:
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User 'JoshRosen' has created a pull request for this issue:
https://github.com/apache/spark/pull/18083
> Add metrics/instrumentation to LiveListenerBus
> ----------------------------------------------
>
> Key: SPARK-20863
> URL: https://issues.apache.org/jira/browse/SPARK-20863
> Project: Spark
> Issue Type: New Feature
> Components: Spark Core
> Affects Versions: 2.2.0
> Reporter: Josh Rosen
> Assignee: Josh Rosen
>
> I think that we should add Coda Hale metrics to the LiveListenerBus in order
> to count the number of queued, processed, and dropped events, as well as a
> timer tracking per-event processing times.
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