OutOfMemory with Tomcat: maybe some old Problem?

bracco · **Joined:** Wed Apr 11, 2007 4:43 am **Posts:** 1

This is the situation:

version 3.0 rc 1, 28 February 2005

version Tomcat 5.5

javax.servlet.ServletException: Servlet execution threw an exception

root cause

java.lang.OutOfMemoryError: Java heap space

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.15 logs.

I still don't know if it can depend from Hibernate. Anyway
this happens sometimes, and it is associated with a massive using
of Hibernate queries.
May you give me an Help?
Thanks in advanced.

Max

Ananasi · **Posted:** Wed Apr 11, 2007 9:01 am

Umm...increase Tomcat's heap space.

kochcp · **Posted:** Wed Apr 11, 2007 10:26 am

i think there's been some memory tweaks since 3.0 rc1 as well. see if you can't get to 3.2.2 and the new cglib

but yeah, like that guy before me, increase heap size

Ananasi · **Posted:** Wed Apr 11, 2007 10:38 am

Just for reference, here is the Tomcat VM args I use.

Code:

-Dcatalina.base="D:\Workspace5\.metadata\.plugins\org.eclipse.wst.server.core\tmp0" -Dcatalina.home="D:\Tomcat\5.5" -Djava.endorsed.dirs="D:\Tomcat\5.5\common\endorsed" -Xms256m -Xmx512m -XX:MaxPermSize=128m -Dcom.sun.management.jmxremote

But I am deploying a mammoth framework (380 DAOs, 15 service objects, 420 domain objects), so maybe you can slim down the memory parameters. Tomcat is pretty slim by default.