Re: Finally figured out the memory settings for Windows server

Tue, 02 Nov 2004 23:11:45 -0800 

I got tomcat running with the following environment variables (system vars):

CATALINA_OPTS = -Xmx512M -server -Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n -Xnoagent -Djava.compiler=NONE
CATALINA_HOME = C:\app\Jakarta-Tomcat_4.1.29
TOMCAT_HOME = C:\app\Jakarta-Tomcat_4.1.29

This does set my memory correct.
(it has been a while sinds I set these though)

Kind Regards,
Jan

Schultz, Gary - COMM wrote:

I was unable to get CATALINA_OPTS to set the memory allocation for Tomcat. I
will continue to try to see if I can get it to work. I'm not running any
other Java apps outside of Tomcat, so this isn't as much of a concern.

Gary

-----Original Message-----
From: Robin Wyles [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November 02, 2004 1:22 PM
To: [EMAIL PROTECTED]
Subject: Re: Finally figured out the memory settings for Windows server


AFAIK JAVA_OPTS affects the JVM as a whole... I think you can use CATALINA_OPTS to specifically set the memory allocation to Tomcat.

Robin

On 2 Nov 2004, at 11:20, Derek Hohls wrote:



Robin

OK, the "hidden agenda" here is that I actually need to
increase the memory for the JVM for non-Tomcat related
apps as well (e.g. XReporter, which runs under Phoenix).

Does JAVA_OPTS affect that as well?

Thanks
Derek



[EMAIL PROTECTED] 2004/11/02 10:17:45 AM >>>


Derek,

On 2 Nov 2004, at 07:42, Derek Hohls wrote:



Being the eternal optimist, I would like to ask if
anyone know how to do this for Tomcat 4.x.... there
is no "Configure Tomcat" on the Windows menu?


It's a while since I ran Tomcat under Windows, but I believe you can
set the JAVA_OPTS environment variable by editing the
tomcat_home/bin/catalina.bat e.g:

set JAVA_OPTS=-Xms128m -Xmx512m

Robin






[EMAIL PROTECTED] 2004/11/01 05:03:08 PM >>>


Thanks to all who provided assistance.

I figured it out for Windows server. Go to Start->Programs->Apache
Tomcat
5.0->Configure Tomcat. This will open up a dialog box to change
settings.
Click the middle tab, Java VM. There is a text area to add Java
Options.
After the last entry, -Xrs, add -Xms<value> -Xmx<value>, where these
are the
minimum size and maximum size of memory usage for the Java virtual
machine
(JVM). Click Apply or OK, and restart the Tomcat service.

One of the reasons I didn't think of this originally is that Apache
Tomcat
5.0 was missing from Start-Programs on my development server. I like


to


test
in development before testing in production. Once I figured this out


I


reinstalled Tomcat on my development server, which placed Apache


Tomcat


5.0
in Start->Programs. From there I was able to set and test the memory
settings for the JVM in development, and eventually place these into
production. The XSP that hits the Oracle database now flies. I can
gather a
10947 record, 9.5 megabyte data stream quickly. It's an entirely new
web
site. It really performs well. I can't believe the improvement in
performance I received with the new memory settings.

The increased performance isn't only with Cocoon. Performance of our
ArcIMS
applications has increased considerably.

Once again, thanks to all who provided assistance.

Gary T. Schultz
Web Technical Administrator / GIS Coordinator
Wisconsin Department of Commerce
6th Floor
P.O. Box 7970
Madison, WI
1-608-266-1283




-----Original Message-----
From: Schultz, Gary - COMM [mailto:[EMAIL PROTECTED]
Sent: Friday, October 29, 2004 12:51 AM
To: '[EMAIL PROTECTED]'
Subject: Desperately seeking assistance and/or information on memory
setti ngs


I'm desperately seeking a real working solution to memory management
in
Java-Tomcat-Cocoon in Windows. I continue to run into low memory
errors. I
researched the Cocoon wiki, Java web sites and Tomcat web sites, but
none of
the solutions appears to work. I can't get Cocoon to use more than


the


default 64 MB of memory allotted by the JVM. I had initially gotten
Cocoon
to free up 50% of the available memory, so I had 64 Meg in use, with
around
30 Meg free. This initially help me with an XSP issue, but now when


I


check
Cocoon status I see that memory is getting low again, sometimes the
status
page will show just over 1 meg of free memory. My XSP no longer


works.


Our configuration:

2.4 GHz Xeon Processor Compaq server
2.5 Gigabytes RAM
Windows 2000 (5.00.2195 Service Pack 4)
J2SDK 1.4.2_03
Apache 2.0.49
Tomcat 5.0.18
Cocoon 2.1.5.1

I trying to sell Cocoon as a tool to help with a project at work. If


I


can't
get consistent results with the XSP, management will not go with


Cocoon


and
will turn to another solution. This will be a major set back for
greater use
of Cocoon in our agency. I'm also trying to sell other agencies in
Wisconsin
on the benefits of Cocoon, but this recent set back will only make


my


efforts more difficult.

Any assistance I can get is greatly appreciated. I would like to see
Cocoon
used for tasks other than a simple web publishing system. But the


way


it
looks right now, that will be a hard sell in my agency and to other
State of
Wisconsin government agencies.

Gary T. Schultz
Web Technical Administrator / GIS Coordinator
Wisconsin Department of Commerce
6th Floor
P.O. Box 7970
Madison, WI
1-608-266-1283




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