Configuring Shared Memory 
The shared memory of a Java instance stores monitoring information about applications, browser sessions, Web sessions, processes, EJBs and so on.
You can configure this shared memory via particular properties. They are represented as tables in the SAP Management Console. This procedure also enables you to change the number of the relevant tables rows.
For example, you can change the number of concurrently supported active Java applications, Java processes, threads, EJB sessions and so on.
Note
If you change the properties of an instance, the changes applies only to the selected instance.
Start the Config Tool by double-clicking the configtool script file in <SAP_install_dir>/<system_name>/<instance_name>/j2ee/configtool directory.
From the tree structure, choose the template or an instance.
Choose
Choose Shared Memory tab.
Select the property you want to configure.
In the Custom Property Data field, enter the new custom value.
Recommendation
We recommend that you make this configurations on a template level. That helps in case the AS Java is updated to apply the updates to all instances.
Choose Set Custom Value.
Choose
(Apply Changes).
Restart the cluster.