[jira] [Assigned] (PHOENIX-1452) Add Phoenix client-side logging and capture resource utilization metrics

["James Taylor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-1452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Taylor reassigned PHOENIX-1452:
-------------------------------------

    Assignee: Samarth Jain

> 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
>            Assignee: Samarth Jain
>
> 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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