6.1 Organization of this chapter

This section describes the database session failover functionality.

If you use this functionality, information of a session that is running on the application is stored in the database. If a failure occurs on a Web server or a J2EE server, stored session information is passed to another J2EE server. As a result, even if requests are transferred to another J2EE server when a failure occurs, you can continue operations in the state before failure.

For details on the types, functionality differences, prerequisites, memory estimation, and notes related to the session failover functionality, see 5. Inheriting Session Information Between J2EE Servers.

The following table describes the organization of this chapter.

Table 6‒1: Organization of this chapter (the database session failover functionality)

Category	Title	Reference location
Description	Application procedure	6.2.1
	Selecting a mode in which performance is important (disabling integrity mode)	6.3
	Processing implemented in the database session failover functionality	6.4
Implementation	Definitions in cosminexus.xml	6.5
Setup	J2EE server settings	6.6.1
	Web application settings	6.6.2
	Database settings	6.6.3
	DB Connector settings	6.6.4
	Changing the settings related to the database session failover functionality	6.7
	Deleting database tables	6.8
Notes	Precautions to be taken when using the database session failover functionality	6.9

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