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From "Rahul Shrivastava (JIRA)" <>
Subject [jira] [Commented] (PHOENIX-3655) Metrics for PQS
Date Wed, 17 May 2017 16:54:04 GMT


Rahul Shrivastava commented on PHOENIX-3655:

According to me, the initial design was reasonable solution without the need to make major
changes to Phoenix metrics APIs. I think lets take James opinion on this. 

Josh suggests that we need to modify existing Phoenix metrics to link it to Hadoop Metrics
2 system. This will give additional advantage of using existing features of hadoop metrics
2. I am not too much well versed with design of phoenix-metrics (probably [~samarthjain] will
know better as he design the original metrics). 

The other choice is to is to develop as per option 1 mentioned in below design doc.
I have written the code as per option 1 in the above design doc.


> Metrics for PQS
> ---------------
>                 Key: PHOENIX-3655
>                 URL:
>             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: Rahul Shrivastava
>             Fix For: 4.9.0
>         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 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
> 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

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