WebSphere Application Server Network Deployment, Version 6.0.x     Operating Systems: AIX, HP-UX, Linux, Solaris, Windows

Cluster member settings

Use this page to manage the members of a cluster. A cluster of application servers are managed together and participate in workload management.

To view this administrative console page, click Servers > Clusters > cluster_name > Cluster members > cluster_member_name.

Configuration tab

Member name

Specifies the name of the server in the cluster. On most platforms, the name of the server is the process name. The name must match the (object) name of the application server.

Data type String
Weight

Specifies the amount of work that is directed to the application server. If the weight value for the server is greater than the weight values assigned to other servers in the cluster, then the server receives a larger share of the server workload.

Data type Integer
Range 0 to 20
Unique ID

Specifies a numerical identifier for the application server that is unique within the cluster. The ID is used for affinity.

Data type Integer
Run in development mode

Enabling this option may reduce the startup time of an application server. This may include JVM settings such as disabling bytecode verification and reducing JIT compilation costs. Do not enable this setting on production servers. This setting is only available on application servers running WebSphere Application Server Version 6.0 and later.

Specifies that you want to use the JVM settings -Xverify and -Xquickstart on startup. After selecting this option, save the configuration and restart the server to activate development mode.

The default setting for this option is false, which indicates that the server will not be started in development mode. Setting this option to true specifies that the server will be started in development mode (with settings that will speed server startup time).

Data type Boolean
Default false
Parallel start

Specifies whether to start the server on multiple threads. Starting the server on multiple threads might shorten the startup time.

Specifies that you want the server components, services, and applications to start in parallel rather than sequentially.

The default setting for this option is true, which indicates that the server be started using multiple threads. Setting this option to false specifies that the server will not be started in using multiple threads (which may lengthen startup time).

Note that the order in which the applications start depends on the weights you assigned to each of them. Applications that have the same weight are started in parallel. You set an application's weight with the Starting weight option on the Applications > Enterprise Applications > application_name page of the Administrative Console. For more information about the Starting weight option, see Enterprise application settings.

Data type Boolean
Default true
Class loader policy

Specifies whether there is a single class loader to load all applications or a different class loader for each application.

Class loading mode

Specifies whether the class loader should search in the parent class loader or in the application class loader first to load a class. The standard for Developer Kit class loaders and WebSphere Application Server class loaders is Parent first.

This field only applies if you set the Class loader policy field to single.

If you select Parent last, your application can override classes contained in the parent class loader, but this action can potentially result in ClassCastException or linkage errors if you have mixed use of overridden classes and non-overridden classes.

Runtime tab

Process Id

The native operating system's process ID for this server.

The process ID property is read only. The system automatically generates the value.

Cell name

The name of the cell in which this server is running.

The Cell name property is read only.

Node name

The name of the node in which this server is running.

The Node name property is read only.

State

The run-time execution state for this server.

The State property is read only.




Related concepts
Clusters and workload management

Related tasks
Adding members to a cluster

Related reference
Cluster member collection

Reference topic    

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Last updated: Dec 11, 2005 4:07:15 PM CST
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