4:28 a.m.
I want to bring to you that useful following statistic available via
JMX, specially in JBoss where you can use the JMX console.
Wesley has been using it for his bridge demo (and I fixed the bug that
was present Wes :-) ).
I believe also that Marek could collect information during load
testing and create graphs that would be correlated with the
performances graphs. (for instance , showing the portal throughput and
the average response time on the same graph, or showing the usage of
the various caches correlated with the througput, I guess you get the
idea).
With the JMX console, the statistics are interesting but it remains
limited, it becomes very useful only if we can exploit the data via a
more powerful tool with charting and gauges.
1/ service=statistic,type=portal,view=portal
- gives you the list of portal ids
- for a given portal id you can get info like:
1/ average execution time
2/ minimum execution time
3/ maximum execution time
4/ execution count (can be graphed)
5/ throughput, i.e number of request per second (can be graphed)
2/ service=statistic,type=template,view=portal
- list of the 10 slowest templates
- list of the 10 fastest templates
- list of the 10 most used templates
- list of all template ids
- for each template it is possible to have info about:
1/ average time
2/ min time
3/ max time
4/ execution count
3/ service=SessionRegistry
it gives the list of the number of active JCR session in the portal
which can be graphed as it gives a good indicator of the load on the
server
4/ each cache is registered under the key
name="$CACHE_ID",service=cache which gives the usual information
there are other few mbeans available but they are less interesting, so
I won't talk much about it.
cheers
Julien
7:50 a.m.
Are these stats on by default? What is the overhead of getting these metrics? BTW:
It's awesome data to have.
----- Original Message -----
From: "Julien Viet" <julien(a)julienviet.com>
To: gatein-dev(a)lists.jboss.org
Cc: "Wesley Hales" <whales(a)redhat.com>, "Marek Posolda"
<mposolda(a)redhat.com>
Sent: Monday, November 16, 2009 4:28:20 AM GMT -06:00 US/Canada Central
Subject: [gatein-dev] Fix in portal list
I want to bring to you that useful following statistic available via
JMX, specially in JBoss where you can use the JMX console.
Wesley has been using it for his bridge demo (and I fixed the bug that
was present Wes :-) ).
I believe also that Marek could collect information during load
testing and create graphs that would be correlated with the
performances graphs. (for instance , showing the portal throughput and
the average response time on the same graph, or showing the usage of
the various caches correlated with the througput, I guess you get the
idea).
With the JMX console, the statistics are interesting but it remains
limited, it becomes very useful only if we can exploit the data via a
more powerful tool with charting and gauges.
1/ service=statistic,type=portal,view=portal
- gives you the list of portal ids
- for a given portal id you can get info like:
1/ average execution time
2/ minimum execution time
3/ maximum execution time
4/ execution count (can be graphed)
5/ throughput, i.e number of request per second (can be graphed)
2/ service=statistic,type=template,view=portal
- list of the 10 slowest templates
- list of the 10 fastest templates
- list of the 10 most used templates
- list of all template ids
- for each template it is possible to have info about:
1/ average time
2/ min time
3/ max time
4/ execution count
3/ service=SessionRegistry
it gives the list of the number of active JCR session in the portal
which can be graphed as it gives a good indicator of the load on the
server
4/ each cache is registered under the key
name="$CACHE_ID",service=cache which gives the usual information
there are other few mbeans available but they are less interesting, so
I won't talk much about it.
cheers
Julien
_______________________________________________
gatein-dev mailing list
gatein-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/gatein-dev
8 a.m.
On Nov 16, 2009, at 2:50 PM, Prabhat Jha wrote:
Are these stats on by default?
yes
What is the overhead of getting these metrics?
The collecting of data does not take much overheard, I have never
spotted them in my JProfiler so far.
The processing of collected data must not be free, but I would not
expect to have a sampling with a one second period to introduce much
bias.
BTW: It's awesome data to have.
thanks :-)
----- Original Message -----
From: "Julien Viet" <julien(a)julienviet.com>
To: gatein-dev(a)lists.jboss.org
Cc: "Wesley Hales" <whales(a)redhat.com>, "Marek Posolda"
<mposolda(a)redhat.com
>
Sent: Monday, November 16, 2009 4:28:20 AM GMT -06:00 US/Canada
Central
Subject: [gatein-dev] Fix in portal list
I want to bring to you that useful following statistic available via
JMX, specially in JBoss where you can use the JMX console.
Wesley has been using it for his bridge demo (and I fixed the bug that
was present Wes :-) ).
I believe also that Marek could collect information during load
testing and create graphs that would be correlated with the
performances graphs. (for instance , showing the portal throughput and
the average response time on the same graph, or showing the usage of
the various caches correlated with the througput, I guess you get the
idea).
With the JMX console, the statistics are interesting but it remains
limited, it becomes very useful only if we can exploit the data via a
more powerful tool with charting and gauges.
1/ service=statistic,type=portal,view=portal
- gives you the list of portal ids
- for a given portal id you can get info like:
1/ average execution time
2/ minimum execution time
3/ maximum execution time
4/ execution count (can be graphed)
5/ throughput, i.e number of request per second (can be graphed)
2/ service=statistic,type=template,view=portal
- list of the 10 slowest templates
- list of the 10 fastest templates
- list of the 10 most used templates
- list of all template ids
- for each template it is possible to have info about:
1/ average time
2/ min time
3/ max time
4/ execution count
3/ service=SessionRegistry
it gives the list of the number of active JCR session in the portal
which can be graphed as it gives a good indicator of the load on the
server
4/ each cache is registered under the key
name="$CACHE_ID",service=cache which gives the usual information
there are other few mbeans available but they are less interesting, so
I won't talk much about it.
cheers
Julien
_______________________________________________
gatein-dev mailing list
gatein-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/gatein-dev
8:09 a.m.
Yes, very awesome to have and thanks for fixing that Julien!
I have created a demo (using the bridge) leveraging the available JMX
data. I have also created a "live view" feature which allows for the
charts to refresh in real time at specified intervals (using polling)
- I was going to use ajax push, but I found a bug in the bridge that
does not return the response.
So for a very simple test, I used Jmeter and created a 20 user/thread
load with 5 loop count, and then added every default portlet to a
single page - and watched my macbook fall to its knees ;) but it is
cool to see the statistics that it generates.
The code is pretty much ready at this point, I am just making things
look attractive and also using it to test questionable RF components
for EPP support.
Here is a preview http://img4.yfrog.com/i/picture5eh.png/
On Nov 16, 2009, at 9:00 AM, Julien Viet wrote:
On Nov 16, 2009, at 2:50 PM, Prabhat Jha wrote:
> Are these stats on by default?
yes
> What is the overhead of getting these metrics?
The collecting of data does not take much overheard, I have never
spotted them in my JProfiler so far.
The processing of collected data must not be free, but I would not
expect to have a sampling with a one second period to introduce much
bias.
> BTW: It's awesome data to have.
thanks :-)
>
> ----- Original Message -----
> From: "Julien Viet" <julien(a)julienviet.com>
> To: gatein-dev(a)lists.jboss.org
> Cc: "Wesley Hales" <whales(a)redhat.com>, "Marek Posolda"
<mposolda(a)redhat.com
> >
> Sent: Monday, November 16, 2009 4:28:20 AM GMT -06:00 US/Canada
> Central
> Subject: [gatein-dev] Fix in portal list
>
> I want to bring to you that useful following statistic available via
> JMX, specially in JBoss where you can use the JMX console.
>
> Wesley has been using it for his bridge demo (and I fixed the bug
> that
> was present Wes :-) ).
>
> I believe also that Marek could collect information during load
> testing and create graphs that would be correlated with the
> performances graphs. (for instance , showing the portal throughput
> and
> the average response time on the same graph, or showing the usage of
> the various caches correlated with the througput, I guess you get the
> idea).
>
> With the JMX console, the statistics are interesting but it remains
> limited, it becomes very useful only if we can exploit the data via a
> more powerful tool with charting and gauges.
>
> 1/ service=statistic,type=portal,view=portal
>
> - gives you the list of portal ids
> - for a given portal id you can get info like:
> 1/ average execution time
> 2/ minimum execution time
> 3/ maximum execution time
> 4/ execution count (can be graphed)
> 5/ throughput, i.e number of request per second (can be graphed)
>
> 2/ service=statistic,type=template,view=portal
>
> - list of the 10 slowest templates
> - list of the 10 fastest templates
> - list of the 10 most used templates
> - list of all template ids
> - for each template it is possible to have info about:
> 1/ average time
> 2/ min time
> 3/ max time
> 4/ execution count
>
> 3/ service=SessionRegistry
>
> it gives the list of the number of active JCR session in the portal
> which can be graphed as it gives a good indicator of the load on the
> server
>
> 4/ each cache is registered under the key
> name="$CACHE_ID",service=cache which gives the usual information
>
> there are other few mbeans available but they are less interesting,
> so
> I won't talk much about it.
>
> cheers
>
> Julien
> _______________________________________________
> gatein-dev mailing list
> gatein-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/gatein-dev
Wesley Hales
JBoss Portal Developer
whales(a)redhat.com
6035
days inactive
6035
days old
3 comments
3 participants
participants (3)
-
Julien Viet -
Prabhat Jha -
Wesley Hales