Network Deployment (Distributed operating systems), v8.0 > End-to-end paths > Dynamic caching > Improve service with the dynamic cache service > Task overview: Using the dynamic cache service to improve performance


Use servlet cache instances

Use this task to configure servlet cache instances. Before you begin, enable the dynamic cache service. Perform this task so that the application can access dynamic cache servlet cache instances. Using servlet cache instances can improve the performance of the application because you can store the output and the side effects of an invoked servlet. Servlet cache instances also give you the necessary control over the cache for multiple applications that are running in an application server. Refer to the Cache instances topic for more information.


Procedure

  1. Enable servlet caching. Refer to the Configuring servlet caching topic for more information.

  2. Configure one or more cache instances.

    1. In the administrative console, click Resources > Cache instances > Servlet cache instances.

    2. Specify the scope of the cache instance. Specify a scope of cell to make the cache instance available to all the servers that are in the cell. Node scope makes the cache instance available to all servers in a node. Server scope makes the cache instance available to the selected server only. If necessary, you can mix the scopes.

    3. Click Apply to save the scope.

    4. Specify the settings for the cache instance. The Name and Java Naming and Directory interface (JNDI) name fields are required. The JNDI name is the name attribute specified in the <cache-instance> element in the cachepec.xml file. An example of a JNDI name specified in the cachespec.xml file follows: 
      <cache-instance name="services/cache/instance_one">
      In this example, specify services/cache/instance_one as the JNDI name.

  3. Update the application.

    To use a servlet cache instance, specify a <cache-instance> element that has a name that is equal to the JNDI Name for this cache instance.


Related


Servlet cache instance collection
Servlet cache instance settings
Use the DynamicContentProvider interface for dynamic cache
Cache instances
Use object cache instances
Task overview: Using the dynamic cache service to improve performance
Use the dynamic cache service
Configure servlet caching

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