To increase the Application Server JVM heap size
- Log in to the Application Server Administration Server.
- Navigate to the JVM options.
- Edit the -Xmx256m option. This option sets the JVM heap size.
- Set the -Xmx256m option to a higher value, such as Xmx1024m.
- Save the new setting.
What happens if JVM memory is full?
Java objects reside in an area called the heap. The heap is created when the JVM starts up and may increase or decrease in size while the application runs. When the heap becomes full, garbage is collected. During the garbage collection objects that are no longer used are cleared, thus making space for new objects.
How increase JVM heap size in IBM WebSphere?
1. In WebSphere web console, select Servers -> Server Types -> WebSphere application servers -> Server Infrastructure -> Java and Process Management -> Process definition. 3. In General Properties section, put 256 for “Initial heap size” and 1024 for “Maximum heap size”.
