I have a Tomcat6 running on a Windows2003 machine. I deployed 2 Grails apps on this server and I soon noticed that everything was crashing sometime after the deploy with a class
I actually set those as JAVA_OPTS for my JVM before starting the server
JAVA_OPTS=-Djvmarg='-Xms1024m -Xmx1024m -XX:PermSize=128m -XX:MaxPermSize=512m'