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Heap size on tomcat 6

I have Apache Tomcat 6 installed on my PC. If I deploy more than 2 applications in Tomcat, it starts giving me "Heap size: Out of memory" exception.

I have 4 GB RAM and windows XP OS.

Can someone please let me know how to increase the Heap Size.

ASKER CERTIFIED SOLUTION

Mick Barry

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Giant2

If you use ApacheTomcatMonitor you can easily set (like objects said before) in the menu "Configure" and tab "Java".

w_serena

ASKER

Thanks a lot for replying.

>> add -Xmx1g to the JAVA_OPTS environemtn var

Where can I find that? I cannot find it in Control Panel --> System --> environment variables

>>If you use ApacheTomcatMonitor you can easily set (like objects said before) in the menu "Configure" and tab "Java".

How to use Apache tomcat Monitor? I think it comes in the sidebar once you install Tomcat. But I didn't install tomcat. I downloaded the zip from Apache site and upon unzipping started using it. There was no installation.

Mick Barry

> Where can I find that? I cannot find it in Control Panel --> System --> environment variables

add it

w_serena

ASKER

thanks a lot for replying.

I have made this setting. Still I am sometimes getting Out of Memory exception.

I tried setting the value as -Xmx2g for JAVA_OPTS, user variable. If I do that the tomcat server does not start.
shouldn't 2GB be acceptable when my system shows total RAM as 3.46 GB?

Mick Barry

try increasing it
how much ram do your webapps need?

w_serena

ASKER

2GB. I increased it as mentiond above by setting -Xmx2g for JAVA_OPTS but server doesn't start if I do that