Novell ACCESS MANAGER 3.1 SP2 - IDENTITY SERVER GUIDE 2010 Manual page 347

/etc/init.d/novell-tomcat5 restart
Windows: Enter the following commands:
net stop Tomcat5
net start Tomcat5
5e Make this change on each Identity Server in the cluster.
Java Memory Allocations: The Tomcat configuration file controls the amount of memory that
Tomcat can allocate for Java. If you have installed your Identity Server on a machine with the
recommended 4 GB of memory, you can modify two parameters in this file to improve performance
under heavy load:
"Modifying the Java Parameters on Linux" on page 347

"Modifying the Java Parameters on Windows" on page 347

Modifying the Java Parameters on Linux
1 Log in to the Identity Server as the
2 Open the Tomcat configuration file for editing.
/var/opt/novell/tomcat5/conf/tomcat5.conf
3 Find the following line in the file:
JAVA_OPTS="-server -Xmx1024m -Xms512m -Xss128k -XX:+UseConcMarkSweepGC"
4 Replace the
value (the default is 1024) with 2048.
-Xmx
This allows Java to use 2 GB of memory.
5 Find the following line in the file:
JAVA_OPTS="${JAVA_OPTS} -Dnids.freemem.threshold=0"
6 Change the
-Dnids.freemem.threshold
This prevents user sessions from using up all the memory and ensures that there is free memory
available so that the other internal Java processes can continue to function. When this threshold
is reached, the user receives a 503 server busy message and a threshold error message is logged
to the
catalina.out
7 Save your changes, then restart Tomcat.
8 Copy the modified file to each Identity Server in the cluster, then restart Tomcat on each
machine.
Modifying the Java Parameters on Windows
1 Log in to the Identity Server as the administrator.
2 Open the Tomcat configuration utility.
Windows Server 2003:
Windows Server 2008:
3 Click the Java tab.
4 In the Java options section, find the following line:
-Dnids.freemem.threshold=0
If the line does not exist, you need to add it.
user.
root
value from 0 to a value between 5 and 15.
file.
/Program Files/Novell/Tomcat/bin/tomcat5w.exe
/Program Files (x86)/Novell/Tomcat/bin/tomcat5w.exe
Maintaining an Identity Server 347