Hey Josh,
I have to agree with deepak. My team had the same requirement.
The solution we came up with was to create our own Sampler that has
the ability to hit an SNMP interface and graph that data via jrobin.
This was a major commitment on our part and has proven quite useful
for our needs(I can't share with the community yet). Knowing how much
work it was, I would recommend using an external monitoring station
instead to capture the data. Something like this:
1. Normalize your environment and use something like Cacti to create
beautiful graphs for all that you want to see. I see topics on Cacti
around JMX, so I'm sure you can find an easy way to get the data you
need into it.
2. At the end of the test you can use a BSH Sampler to HTTP GET all
the graph data for the timeframe of the test. The way I would
implement this would be a common beanshell script that can connect to
a URL and save the graph image/data locally. Then just pass arguments
into the script from the BSH Sampler.
3. Since you would need to only trigger the beanshell when your test
is done, the test would have to be designed in way that the end can be
known.
Beanshell has a decent manual and several examples exists for Java to
pull the data from the monitoring station to your JMeter station (
http://download.oracle.com/javase/tutorial/networking/urls/readingWriting.html
).
Hope this helps,
Anthony
On Wed, Dec 15, 2010 at 2:31 PM, Josh Abts <[email protected]> wrote:
> I didn't think about the simultaneous calls to JMX.
>
> Basically I want to be able to see values over time of various indicators
> that are accessible through JMX. I could graph it separately and monitor
> through another script, but ideally, we want this to be an all in one
> solution. Run the test, see the results. Not have to merge 3 different
> graphs and csv files, etc.
>
> I am using the jmeter-plugins from the google projects page to graph
> cpu/memory/disk io over time, and I would love something almost exactly the
> same but graphing these certain JMX indicators.
>
> So far I have it working by updating the sample variables and using a
> beanshell postprocessor in order to update the vars with the JMX values.
> Then we can at least access those via CSV and graph them myself.
>
> Thanks for the input,
> Josh
>
> On Wed, Dec 15, 2010 at 1:23 PM, Deepak Shetty <[email protected]> wrote:
>
>> Hi
>> My 2 cents.
>>
>> i wouldnt do it this way. Most app servers have low impact monitoring tools
>> that run within the app server that allow them to write JMX data to files
>> in
>> various combinations (especially alerting kind of JMX - notify if free
>> connections fall to < 3 or something) so I am not really in favor of a one
>> client does all solution - its easier to combine results.
>>
>> Also if you code this yourself from an external client then you must
>> account
>> for the additional load that you are putting on the server(as opposed to
>> the
>> app server which will usually give you figures like expect 2% reduction per
>> 10 attributes monitored or something) . The sample variables are recorded
>> per thread - why would you want to do that?. If you are running say a 100
>> threads you dont really want to make a 100 concurrent JMX calls so you'd
>> have to code it to say only 1 thread actually makes the call. Usually you
>> want this to be interval based (monitor every x minutes or so) which doesnt
>> fit into sample_variables easily.
>>
>> regards
>> deepak
>>
>> On Wed, Dec 15, 2010 at 6:55 AM, Josh Abts <[email protected]>
>> wrote:
>>
>> > I like the idea of the sample variables. The question now is is there
>> any
>> > sample code/examples of how to connect say a JMX (java management) value
>> to
>> > variable.
>> >
>> > My best guess would be a BeanShell sampler with some sort of custom Java
>> > code, but is there a cleaner/easier way?
>> >
>> > On Mon, Dec 13, 2010 at 5:27 AM, sebb <[email protected]> wrote:
>> >
>> > > On 10 December 2010 20:04, Josh Abts <[email protected]> wrote:
>> > > > Is it possible to monitor other values somehow during a JMeter test?
>> > >
>> > > You can record variables using:
>> > >
>> > >
>> >
>> http://jakarta.apache.org/jmeter/usermanual/listeners.html#sample_variables
>> > >
>> > > So if you can get the value in a variable, you can associate if with
>> > > each sample.
>> > >
>> > > > For example I may want to graph load average over time in conjunction
>> > > with
>> > > > the test that is being run. Is it possible to do this all in a
>> single
>> > > > interface (JMeter) through some listener or is it only possible if
>> done
>> > > > through a separate utility? Alternatively if I can access the value
>> I
>> > > want
>> > > > through JMX, is there a way of accessing that value and graphing it
>> or
>> > > > recording it along with the thread requests?
>> > > >
>> > > > Basically, it would be nice if it is possible to have this be
>> turn-key
>> > in
>> > > > the sense that we can do one test and have one place to record and
>> > > monitor
>> > > > all the data and then break it apart ourselves if necessary.
>> > > >
>> > > > Thanks!
>> > > >
>> > > > --
>> > > > Joshua Abts
>> > > >
>> > >
>> > > ---------------------------------------------------------------------
>> > > To unsubscribe, e-mail: [email protected]
>> > > For additional commands, e-mail: [email protected]
>> > >
>> > >
>>
>
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