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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-3655) Metrics for PQS
Date Thu, 17 May 2018 20:13:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-3655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16479635#comment-16479635
] 

Josh Elser commented on PHOENIX-3655:
-------------------------------------

{quote}The stuff you are talking about is implemented as a part of hbase-hadoop2-compat library
on which phoenix-core depends. I would prefer re-using the code that provides the {{HBaseMetrics2HadoopMetricsAdapter}} for
converting the metrics. Also, {{GlobalMetricRegistriesAdapter}} class helps me directly dump
the hbase registry to JMX.
{quote}
Maybe we're talking past each other. I am talking about the classes/interfaces defined in
hbase-metrics-api. These classes/interfaces are what HBaseMetrics2HadopMetricsAdapter uses
and I think that is what would be good to use. BaseSourceImpl is not a part of this collection.
I am suggesting that Phoenix depend on nothing metrics-related in hbase-hadoop2-compat.

> Metrics for PQS
> ---------------
>
>                 Key: PHOENIX-3655
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3655
>             Project: Phoenix
>          Issue Type: New Feature
>    Affects Versions: 4.8.0
>         Environment: Linux 3.13.0-107-generic kernel, v4.9.0-HBase-0.98
>            Reporter: Rahul Shrivastava
>            Assignee: Karan Mehta
>            Priority: Major
>             Fix For: 4.15.0
>
>         Attachments: MetricsforPhoenixQueryServerPQS.pdf
>
>   Original Estimate: 240h
>  Remaining Estimate: 240h
>
> Phoenix Query Server runs a separate process compared to its thin client. Metrics collection
is currently done by PhoenixRuntime.java i.e. at Phoenix driver level. We need the following
> 1. For every jdbc statement/prepared statement/ run by PQS , we need capability to collect
metrics at PQS level and push the data to external sink i.e. file, JMX , other external custom
sources. 
> 2. Besides this global metrics could be periodically collected and pushed to the sink.

> 2. PQS can be configured to turn on metrics collection and type of collect ( runtime
or global) via hbase-site.xml
> 3. Sink could be configured via an interface in hbase-site.xml. 
> All metrics definition https://phoenix.apache.org/metrics.html



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