Hi,
Here are the steps to change memory parameters of Tomcat:
1. Stop Tomcat if running [ <install_dir>/bin/shutdown.sh ]
2. Set environment variable JAVA_OPTS to have the required memory changes
e.g., JAVA_OPTS="$JAVA_OPTS -Xms128m -Xmx256m"
3. Start Tomcat [ <install_dir>/bin/startup.sh ]
Location of "catalina.bat" is under the *bin* sub-folder of your Tomcat
installation.
HTH
John
-----Original Message-----
From: A mailing list about Java Server Pages specification and reference
[mailto:[EMAIL PROTECTED] Behalf Of Robert Burdick
Sent: Tuesday, June 17, 2003 11:50 AM
To: [EMAIL PROTECTED]
Subject: Re: Tomcat Connections and Memory Limits
Thanks for the help, but I'm still not there.
What is the syntax, and where in the catalina.bat file does it go?
At 07:04 PM 6/16/2003 -0700, you wrote:
>Robert,
>Type 'java -X' to get the list of extended options for the JVM. Look at the
>-Xms, -Xmx, and -Xss options. You then configure the catalina.bat file with
>the settings.
>
>-Richard
>
>At 08:56 AM 6/16/2003 -0700, you wrote:
>>Not a lot of session data being stored. In fact, one of the only things I
>>was storing, a login flag, is no longer being stored in the session.
>>
>> How does one change the JVM heap parameters?
>>
>>Robert
>>
>>At 11:33 AM 6/16/2003 -0400, you wrote:
>>>Robert,
>>>Are you storing many objects in the user's sessions? You might encounter
the
>>>problem you are having if the data you are storing in your sessions is
>>>large. How much memory do you have on your machine? You might want to
tune
>>>some of the heap parameters for the JVM.
>>>
>>>-Richard
>>>
>>> > -----Original Message-----
>>> > From: Robert Burdick [SMTP:[EMAIL PROTECTED]
>>> > Sent: Sunday, June 15, 2003 11:06 PM
>>> > To: [EMAIL PROTECTED]
>>> > Subject: Tomcat Connections and Memory Limits
>>> >
>>> > Hello All:
>>> >
>>> > I'm currently building an application that runs on Tomcat 4.1.24. I
have
>>> > been stress testing the application with Paesslers Webserver Stress
>>> > Tool. When I run a scenario that simulates 20 concurrent users,
hitting
>>> > various JSP pages in the application every 15 seconds, the test
succeeds
>>> > with no errors. When I crank the number of simulated concurrent users
to
>>> > 40, I relatively quickly run out of memory,etc.
>>> >
>>> >
>>> > Are there any default limits built into Tomcat that specify the number
of
>>> > concurrent users allowed, as well as any kind of memory limits? The
>>> > interesting thing is that when the Tomcat logs say I'm running out of
>>> > memory, the system information on the PC shows that I have plenty
>>> > left. Thus I'm wondering if I'm hitting a Tomcat limitation of some
>>> kind.
>>> >
>>> > Robert
>>> >
>>> >
>>> > Robert Burdick
>>> >
>>> > [EMAIL PROTECTED]
>>> > www.wAppearances.com
>>> > (650)-917-8446 (office)
>>> > (650)-906-3707 (cell)
>>> >
>>> >
>>>
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>>> >
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>>>
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==
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>>>
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>>> http://forums.java.sun.com
>>> http://www.jspinsider.com
>>
>>Robert Burdick
>>
>>[EMAIL PROTECTED]
>>www.wAppearances.com
>>(650)-917-8446 (office)
>>(650)-906-3707 (cell)
>>
>>==========================================================================
=
>>To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
>>JSP-INTEREST".
>>For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST
>>DIGEST".
>>
>>Some relevant archives, FAQs and Forums on JSPs can be found at:
>>
>>http://java.sun.com/products/jsp
>>http://archives.java.sun.com/jsp-interest.html
>>http://forums.java.sun.com
>>http://www.jspinsider.com
>
>===========================================================================
>To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
>JSP-INTEREST".
>For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST
DIGEST".
>
>Some relevant archives, FAQs and Forums on JSPs can be found at:
>
>http://java.sun.com/products/jsp
>http://archives.java.sun.com/jsp-interest.html
>http://forums.java.sun.com
>http://www.jspinsider.com
Robert Burdick
[EMAIL PROTECTED]
www.wAppearances.com
(650)-917-8446 (office)
(650)-906-3707 (cell)
===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
JSP-INTEREST".
For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST
DIGEST".
Some relevant archives, FAQs and Forums on JSPs can be found at:
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http://forums.java.sun.com
http://www.jspinsider.com
===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST DIGEST".
Some relevant archives, FAQs and Forums on JSPs can be found at:
http://java.sun.com/products/jsp
http://archives.java.sun.com/jsp-interest.html
http://forums.java.sun.com
http://www.jspinsider.com
