Tomcat memory management

[Scott Johnson]

Hello,

We've got an application that is replicated for clients, each replication runs in its own context. We're running jdk1.4.1, RH7.2, Tomcat 4.0.6

Even though the application itself can run fine on 10mb RAM, as each context initializes, EVERY thread allocates more memory until we get 20-30 contexts up with each context taking 60-90mb RAM:

An example process output will have one entry like this for every context:
root 2900 0.0 6.6 257624 68556 pts/1 S 18:32 0:00 /usr/java/jdk1.4.1_01/bin/java -Xmx10m -Djava.endorsed.dirs=/usr/java/tomcat/bin:/usr/java/tomcat/common/lib -classpath /usr/java/jdk1.4.1_01/lib/tools.jar:/usr/java/tomcat/bin/bootstrap.jar -

As you can see, the -Xmx... argument is of no effect as these processes are taking 68mb.

For us the optimal solution would be to have a single process handling all of the contexts, or have each context limited to 10mb.

I've searched for a configuration to allow the former, and the Xmx arg isn't working on the latter. Does anyone have any ideas?

Thanks!
__________________
Scott Johnson
AtTask, Inc.
http://www.attask.com
Work Smart, Work Happy™

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