Adding and Removing Server Processes 

Use

During installation, the installation procedure configures the optimal number of server processes in an instance based on the available hardware resources. This enables optimal utilization of the hardware resources and of the capacity of the ICM to handle multiple server processes. If you need to add more server processes to an existing Java instance, you can do that manually using the AS Java Config Tool.

You can configure the number of server processes on two levels:

• template level

If you define the number of server processes on a template level, all Java instances in the cluster will have this number of server processes.

• Java instance level

If you specify the number of server processes for a particular Java instance, only this particular Java instance will have that number of server processes.

Prerequisites

You have installed the basic components of the cluster.

Procedure

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       1.      Make sure that the AS Java system is stopped.

More information: Starting and Stopping Systems and Instances.

       2.      Start the Config Tool by running the configtool script file located in the <SAP_install_dir>/<system_name>/<instance_name>/j2ee/configtool directory.

       3.      From the tree-structure in the left-hand pane, choose the relevant template or Java instance according to whether you want to apply the configuration on the entire cluster or on a particular Java instance only.

       4.      Choose the Servers tab.

       5.      In the Custom number of server nodes field, enter the number of server processes you want to have.

       6.      Choose Check Values to verify that your machine is capable of handling the number of server processes you entered. Correct the value if necessary.

This option is available at instance level only.

If the template configuration allows you to enter a formula instead of an exact value, then the Check Values option calculates the formula and displays the value.

       7.      Choose Set.

       8.      Choose  Apply changes.

       9.      Restart the cluster.