Following on from my previous email, I am basically using jmeter to call a
jsp which in turn calls a EJB method remotely. This is a dummy EJB and just
outputs a string, ultimately though I would like to use jmeter on our actual
J2EE app. We will also be using OptimizeIT to catch any performance issues
that arise during this load testing. In order to test this I have it
plugged into my weblogic server and am monitoring the results of my Jmeter
tests.
I have some issues with Jmeter that are more than likely down to me than the
tool itself, I have detailed these below, if anyone could help it would be
great.
I can create the script no bother, and run it however:
1) I get a lot of exceptions in the jmeter console mainly
ConnectExceptions mentioning the sockets. (I am not using hhtps only http),
sometimes I get a netAddress or something I can't remember exactly as I
cannot recreate one now I wan to know what it is.
2) I run my script, which is quite simple, but it only seems to last a
second or two, I thought Jmeter would loop is this the case or will it only
execute through the script once.
3) I have run my script with the threads set to 500. Does this mean it
will test 500 threads total, if so how many is it doing at a time. And how
can I increase the overall test duration or vary the simulated load?
4) After I have run my script, I cannot re-run it, I stop it, clear the
visualizers and then run, and nothing happens. I suspect this could be to
do with the exceptions I am encountering, but I have to keep exiting Jmeter
then going back in. Is there anything that anyone recognises could be at
fault here (aside from me :-)
As I say my aim is to simulate a heavy load on the jsps/servlets so that I
can monitor both the response times and also using OptimizeIT identify any
bottlenecks in the code.
Many thanks ........again
Leigh White
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