External cache group settings

You need to define an external cache group controlled by WAS. To do so:

1. Start the WebSphere Administrative Console and click Servers -> Application Servers.

2. Select your appserver from the list.

3. Select Dynamic Cache Service from the Additional Properties.

4. Click External Cache Groups, again from the Additional Properties pane.

This panel (shown in Figure 14-30) allows you to create, delete or update an existing External Cache Group.

5. Click New. This launches the Configuration window where you can specify the name of the external cache group.

Note The external cache group name needs to match the externalcache property defined for servlets or JSPs in the cachespec.xml file.

When external caching is enabled, the cache matches pages with its URIs and pushes matching pages to the external cache. The entries can then be served from the external cache instead of the appserver.

We need to create three different external cache groups for our scenarios:

AFPA - which is the adapter used for the Fast Response Cache Accelerator

EsiInvalidator - used for the Web server plug-in

ITSO-APPSERV - used for the Caching Proxy

Figure 14-30 External Cache Groups

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