Application procedures

This subsection describes the preparations for setting up the required environment and various settings for using the EADs session failover functionality. The following figure describes the application procedure of the EADs session failover functionality:

Figure 7-1 Application procedure (the EADs session failover functionality)

[Figure]

Perform the preparations for setting up the environment and various settings in accordance with the application procedures described above and then start a J2EE application.

Organization of this subsection: (1) Preparations for setting up the environment; (2) Settings of the EADs session failover functionality; (3) Preparations for the EADs server

(1) Preparations for setting up the environment

The following table describes items to be implemented as preparations for building the environment when using the EADs session failover functionality, implementation contents, and reference locations:

Table 7-2 Items to be implemented as preparations for building the environment when using the EADs session failover functionality, implementation contents, and reference locations

Implementation order	Implementation item	Implementation contents	Reference location
1	Confirming prerequisites	Confirm prerequisite configuration and settings.	5.4
2	Estimating the size of HTTP session attribute information	Estimate the size of HTTP session attribute information. The estimated value is required for environment settings of the EADs server.	5.8.2

(2) Settings of the EADs session failover functionality

The following table describes contents and reference locations of the settings of the EADs session failover functionality:

Table 7-3 Setting contents and reference locations of the EADs session failover functionality

Setting order	Setting item	Setting contents	Reference location
1	J2EE server settings	Perform the following settings: Settings of the EADs session failover functionality Settings of the EADs client Settings of the container extension library	7.5
2	Web application settings^#	Perform the following settings: Settings of the EADs session failover functionality (for a Web application) Settings of application identifier Settings of the EADs session failover inhibition functionality Settings of refer-only requests	7.4

#: Perform Web application settings in the development environment.

(3) Preparations for the EADs server

The following table describes implementation contents and reference locations of the items to be implemented as preparations of the EADs server when using the EADs session failover functionality:

Table 7-4 Implementation contents and reference locations of the items to be implemented as preparations of the EADs server

Implementation order	Implementation item	Implementation contents	Reference location
1	Setting up the EADs server environment	Use the definition file provided by EADs and set up the EADs server. Place the JAR file that executes the EADs session failover functionality processing on the EADs server.	7.6.1
2	Starting the EADs server	Start the EADs server after setting up the environment of the EADs server.	7.6.2
3	Creating a cache	Create application information cache and session information cache that are to be used in the EADs session failover functionality.	7.6.3
4	Unlocking a clusters	Unlock EADs clusters in order to receive requests from the EADs client.	7.6.4

7.2.1 Application procedures

(1) Preparations for setting up the environment

(2) Settings of the EADs session failover functionality

(3) Preparations for the EADs server