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From Jesse Yates <>
Subject Re: monitoring
Date Tue, 01 Jul 2014 17:34:27 GMT
I was working on a patch to support using Cloudera's HTrace ( library for phoenix queries. There was
a preliminary patch for the 2.X series, but it never got committed. Two
weeks ago I almost finished porting it to the 4.X line, but haven't
finished the piece that will support Hadoop1*. I can't seem to find the
JIRA right now though...

I've gotten sidetracked on some internal work, so probably not going to
have time to wrap it up for a couple weeks.


* It uses the Hadoop metrics2 library to collect the traces and then has a
default implementation (as a metrics sink) that writes them to a phoenix
table so it can be analyzed later. Because of the changes between Hadoop1
and 2, there is some reflection funkiness that is necessary to support
both, but just haven't finished the hadoop1 side of it.
Jesse Yates

On Tue, Jul 1, 2014 at 9:29 AM, Stephen Sprague <> wrote:

> following up to my own message i did see reference to something called
> "Hannibal" ( in the Phoenix doc.
> Looks like this helps with identifying imbalance within your cluster.
> I'll keep searching around though - a Phoenix log file looks like perhaps
> the best way to monitor phoenix queries at this point as i don't think
> there is any self-aware queries to ask of it.  That's a jdbc driver issue
> anyway - not phoenix.
> ​Cheers,
> Stephen.​
> On Mon, Jun 30, 2014 at 10:17 PM, Stephen Sprague <>
> wrote:
>> Hi guys,
>> May i ask what tools you use to monitor (active) Phoenix queries?
>> looking at the web ui for hbase master and region servers it isn't
>> exactly intuitive as to what *phoenix* is doing.  Its probably a stretch to
>> ask if there's something like "show processlist" (ala mysql) out there
>> somewhere.
>> so is there a log file with metrics in it that perhaps i could tail or
>> analyze in realtime?   perhaps even feed it back into hbase? :)  hey, wait
>> a sec, anything in those system tables that is realtime-ish?
>> regardless, kinda curious how people monitor the Phoenix plant.
>> thanks,
>> Stephen.

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