8.1 WebSphere data sources

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Overview

In this chapter, we provide a description of the components that have important performance impact in a WebSphere Application Server and DB2 UDB integrated environment, and offer some best-practices guidelines for their usage.

In Chapter 2, Chapter 3, Chapter 4, and Chapter 6, we provided an overview of WebSphere Application Server and DB2 UDB, and described their key performance components, indicators, best practices, methodology and tools for achieving optimal performance. In this chapter, we focus on those key components specific to the interface between WebSphere Application Server and DB2 that can impact the performance of WebSphere Application Server and DB2 UDB environment.

The topics covered include:

• Connection pool

• Prepared statement cache

• Session database

• Enterprise Java Beans

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