Dynamic cache service

Caching the output of servlets, commands and Java Server Pages (JSP) files can improve application performance. WAS consolidates several caching activities, including servlets, Web services, and WAS commands into one service called the dynamic cache service. Caching activities share many configuration parameters, which are set in the dynamic cache service.

The dynamic cache service works within an application server Java virtual machine (JVM) and intercepts calls to cacheable objects. For example, it intercepts calls through a servlet service() method or a command execute() method. It then stores the output of the object to (or serves the content of the object from) the dynamic cache.

The following topics describe how to enable and configure the dynamic cache service, as well as use advanced features, such as configure external caches and build user-defined drop-in components to customize the cache operation:

Overview of the dynamic cache service
This topic describes the dynamic cache service and how it is used to improve application performance.

Enable dynamic caching
This topic explains how to enable dynamic caching using the WAS administrative console. By default, the dynamic cache service is enabled.

Configure dynamic caching
This topic describes how to configure dynamic caching for servlets, commands, and Web services.

Configure external caching
This topic describes how to configure external caching, which allows you to manage dynamic content beyond the application server.

Display cache information
This topic describes the Dynamic Cache Monitor, a Web-based interface you can use to control caching behavior.

Dynamic cache XML examples
This topic contains examples that illustrate how to enable dynamic caching for a variety of scenarios using XML configuration files.

Configure cache replication
This topic describes how to configure cache replication in a clustered environment. Cache replication is available only in WAS Network Deployment.