Re: Profiling tomcat applications with -Xrunhprof (Tomcat runs asa Windows Service)

["Haase, Johannes | SCARUS" <j....@scarus.de>]

Caldarale, Charles R schrieb:
>> From: Caldarale, Charles R
>> Subject: RE: Profiling tomcat applications with -Xrunhprof (Tomcat runs
>> asa Windows Service)
>>
>> What might work is using JVisualVM instead and just looking at the
>> information in the GUI.
>>     
>
> I did get JVisualVM to work with Tomcat running as a service, but I don't think you're going to like it (to paraphrase Douglas Adams).
>
> First, the Tomcat service needs to be running under the same Windows account that JVisualVM is started with; JVisualVM cannot find the PID otherwise, and heap profiling doesn't seem to be available through JMX ports (or maybe I just don't know how to configure it).
>
> Second, you'll need to run Tomcat under JRE/JDK 1.6.  JVisualVM can access Tomcat running under a 1.5 JRE, but heap profiling won't be available.
>
> So, the easiest thing may well be to just run Tomcat from the command prompt for the duration of the profiling effort.  Since heap profiling has a significant performance impact, you wouldn't want it on very long anyhow.
>
>  - Chuck
>   

Hello Chuck!

Thanks for clarification.
How can I start the tomcat 5.5 that was installed and intended to run as 
a service via console?

Thanks a lot!
Johannes

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RE: Profiling tomcat applications with -Xrunhprof (Tomcat runs asa Windows Service)

["Caldarale, Charles R" <Ch...@unisys.com>]

> From: Haase, Johannes | SCARUS [mailto:j.haase@scarus.de]
> Subject: Re: Profiling tomcat applications with -Xrunhprof (Tomcat runs
> asa Windows Service)
> 
> How can I start the tomcat 5.5 that was installed and intended 
> to run as a service via console?

Look in Tomcat's bin directory; if you have startup.bat and shutdown.bat scripts, use those.  If you don't have them, download the .zip package of Tomcat, expand it, and copy all the bin/*.bat files into your existing bin directory.  (The .exe package omits the scripts, for inexplicable reasons.)

Once that's done, open up a command prompt window, set JAVA_HOME to your JDK location (or JRE_HOME to your JRE), set CATALINA_OPTS to whatever JVM command-line parameters you need, and run startup.bat.  Note that none of your config settings from tomcat5w.exe are used automatically; you have to supply them via CATALINA_OPTS, including heap sizes.  The Tomcat process will start in a separate window.  Use shutdown.bat from the original commmand prompt window to terminate it.

 - Chuck


THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers.