Caching pages shared by multiple users

If we use a proxy server such as WebSphere Edge Server and the system has content that can be shared among multiple users, we can improve performance by caching this shared content.

WebSphere Portal allows us to configure the cache scope and the cache expiry time of the specified content. The cache scope and cache expiry time are configured by page, portlet, and theme. WebSphere Portal combines this information to produce a final cache scope and expiry time for each page it serves. We configure these cache settings in one of the following two ways:

xmlaccess.sh

See xmlaccess.sh for information.

Portlets

The Manage Pages, Manage Portlets, and Properties portlets allow us to configure cache settings. For detailed information, refer to the portlet helps.

When caching JSR portlets, the cache scope is only for proxy server caching policies and requires the use of an edge server cache. Local display caching policies are not affected by this setting. The cache expiration setting is used for both local and remote caching policies.

Parent Caching