It could also be that the Permanent Generation has filled up, look up the docs on how to increase that or start with -XX:MaxPermSize=128M
-----Original Message----- From: SANTOS, DANIEL (SBCSI) [mailto:[EMAIL PROTECTED] Sent: 06 January 2005 14:57 To: Tomcat Users List; [EMAIL PROTECTED] Subject: RE: Out of Memory when compiling JSP (Struts app on Tomcat 4.1.27) Chachany, It sounds like it's using the default of -Xmx64m. Probably the best way to troubleshoot out or memory errors is to see what is really happening with garbage collecting, the same way that you tune it. If you can add these options, then the JVM will spit out all kinds of useful information: -XX:+PrintTenuringDistribution -XX:+PrintGCDetails -Xverbosegc But it sounds like the problem is that it's not getting the options. What you really need to figure out is exactly how the service is getting started. For instance, if it's calling tomcat.exe then I don't believe that the JAVA_OPTS environment variable is ever looked at since that is in the startup.sh and startup.bat files (I'm not 100% certain about that however). Find out how it's starting. Also, post the version of Java you are using (since the options I gave you above don't work on all versions, I think 1.4 and up or 1.3 and up). But the -Xverbosegc works all the way back to 1.1 if I'm correct. Daniel -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, January 06, 2005 8:25 AM To: [email protected] Subject: Out of Memory when compiling JSP (Struts app on Tomcat 4.1.27) Hi all I'm working on an application currently that is experiencing some intermittent memory problems when installed onto our "integration test" server, but not on the development staff's local laptops. I have attempted to increase the maximum memory available to Tomcat by creating a global environment variable (because tomcat runs as a service) JAVA_OPTS=-Xmx512M Which doesnt seem to have made a difference. Is this the best way to increaqte the memory available to an application? Is my syntax wrong? Are there other options I can set that will help? The weird thing is that when I look at the memory usage of Tomcat.exe, the most memory it has used is 110,000 there seems to be no pattern to the memory errors (as usual) and it happens a lot when compiling JSP files. The system memory seems high, but not horribly so. I see the following in Task Manager MEM Usage = 885,000 (varies) Commit Charge: Limit : 2,522,244 Peak : 958,260 Anyone? Thanks! --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
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