About this task
If you selected the Small or Medium deployment option when you installed IBM
® Connections, IBM
Installation Manager set the Maximum Heap Size of the Java
Virtual Machine (JVM) on each application server. This setting is designed to avoid out-of-memory errors.
Review the heap size on each server to ensure that you are allocating enough memory for IBM
Connections but also to ensure that you are not allocating more memory than the physical capabilities of the systems where the JVMs are deployed.
Whether you installed a Small, Medium, or Large deployment of IBM
Connections, you should review the JVM heap sizes in your deployment and make adjustments, if necessary.
To review the JVM heap size, complete the following steps:
- Log into the WebSphere® Application Server Integrated Solutions Console and select Servers -> Server Type -> WebSphere application servers.
- Click server, where server is the name of an IBM Connections server. You might have several servers in your deployment, so you might need to repeat these steps for each server.
- In the Server Infrastructure area, click Java and Process Management and then click Process Definition -> Java Virtual Machine.
- Review the Maximum heap size. IBM Installation Manager sets the following default values:
- Small deployment:
- Medium deployment:
- Large deployment:
Each application in a Large deployment, except News and Search, has a default Heap size of 256 MB. The News and Search applications have a default Heap size of 784 MB.
Note: Ensure that you are not allocating more memory than the physical capacity of the system where the JVM is installed.
Adjust the current values of the heap size up or down to suit the needs of your deployment and your hardware capabilities.
Click OK and then click Save.
Repeat these steps for any additional servers in your deployment.
What to do next
For more information about tuning the JVM, see the IBM Connections 4.0 Performance Tuning Guide
in the Community Articles section of the wiki.
Parent topic: Mandatory post-installation tasks