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https://issues.apache.org/jira/browse/PHOENIX-3655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15861738#comment-15861738
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Rahul Shrivastava commented on PHOENIX-3655:
--------------------------------------------
[~elserj] - My answers inline.
>-------- I think it's important to make the distinction between "application
>level" metrics that Phoenix can/does collect and PQS-specific metrics. There
>are some basic things instrumented in PQS but these are RPC-level (as opposed
>to the aforementioned application-level) metrics. Keeping a clear distinction
>between kinds of metrics would be good.
Could you please elaborate ? My understanding is PQS comes with Phoenix driver.
The client of the phoenix driver needs to make specific calls to PhoenixRuntime
to generate the metrics and push it to the sink.
Have you investigated using HTrace? - I will try Htrace but IMHO, Htrace would
be not a good substitute for metrics collection. In past, we had system with
tracing and metrics collection. After all, we can turn on tracing for a small
fraction of request.
> 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
> Fix For: 4.9.0
>
> 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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