Network Deployment (Distributed operating systems), v8.0 > Set up the application serving environment > Administer application servers > Create, edit, and delete WebSphere variables


Introduction: Variables


Overview

Variables come in many varieties. They are used to control settings and properties relating to the server environment. The three main types of variables that you should understand are...


Environment variables

Environment variables, also called native environment variables, are not specific to WAS and are defined by other elements, such as UNIX, Language Environment (LE), or third-party vendors, among others. Some of the UNIX-specific native variables are LIBPATH and STEPLIB. These variables tend to be operating system-specific.

Environment variables can also be specified as an application server environment entry. To specify an environment variable as an environment entry, in the admin console, click...

    Servers > Server Types > appserver > Server Infrastructure > Java process management > Process definition > Environment entries


WebSphere variables

WebSphere variables are name and value pairs that are used to provide settings for any of the string data type attributes contained in one of the XML formatted configuration files that reside in the product repository. After a variable is defined, the value specified for the variable replaces the variable name whenever the variable name is encountered during configuration processing.

WebSphere variables can be used to configure:

To create or modify a WebSphere variable, in the admin console click

        Environment > WebSphere variables .

A variable can apply to a cell, a cluster, a node, or a server.

How the variable is set determines its scope. If the variable is set:


Custom properties

Custom properties are property settings meant for a specific functional component. Any configuration element can have a custom property. Common configuration elements are...

A limited number of supported custom properties are available and these properties can be set in the admin console using the custom properties link that is associated with the functional component.

For example, to set web container custom properties...

Servers > Server Types > WebSphere application servers > server_name

> Container settings > Web container > Custom properties

Custom properties set from the web container custom properties page apply to all transports that are associated with that web container; custom properties set from one of the web container transport chain or HTTP transport custom properties pages apply only to that specific HTTP transport chain or HTTP transport. If the same property is set on both the web container page and either a transport chain or HTTP transport page, the settings on the transport chain or HTTP transport page override the settings that are defined for the web container for that specific transport. Change time zone settings
Create, edit, and delete WebSphere variables
Session management custom properties
Web container custom properties
HTTP transport custom properties

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