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https://issues.apache.org/jira/browse/PHOENIX-1452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14289791#comment-14289791
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Nick Dimiduk commented on PHOENIX-1452:
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I opened HBASE-12911 as a place to hang a conversation on this topic.
> Add Phoenix client-side logging and capture resource utilization metrics
> ------------------------------------------------------------------------
>
> Key: PHOENIX-1452
> URL: https://issues.apache.org/jira/browse/PHOENIX-1452
> Project: Phoenix
> Issue Type: Improvement
> Affects Versions: 5.0.0, 4.2
> Reporter: Jan Fernando
>
> For performance testing and tuning of features that use Phoenix and for
> production monitoring it would be really helpful to easily be able to extract
> statistics about Phoenix's client-side Thread Pool and Queue Depth usage to
> help with tuning and being able to correlate the impact of tuning these 2
> parameters to query performance.
> For global per JVM logging one of the following would meet my needs, with a
> preference for #2:
> 1. A simple log line that that logs the data in ThreadPoolExecutor.toString()
> at a configurable interval
> 2. Exposing the ThreadPoolExecutor metrics in PhoenixRuntime or other global
> client exposed class and allow client to do their own logging.
> In addition to this it would also be really valuable to have a single log
> line per query that provides statistics about the level of parallelism i.e.
> number of parallel scans being executed. I don't full explain plan level of
> data but a good heuristic to be able to track over time how queries are
> utilizing the thread pool as data size grows etc.
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