Installation guide

Overview
40 EAServer
In Figure 4-2, the Web server redirector has an entry in the redirector
configuration file that directs requests for the “examples” Web application to
three application servers: Jag1, Jag2, and Jag3. Requests for the Web
application are distributed evenly across all three servers.
Figure 4-2: redirector configuration file entry
Failover and detecting unavailable application servers
The redirector provides failover for Web applications. However, to achieve
transparent failover, you must mark your Web application as distributable in
EAServer using EAServer Manager. This allows the
HttpSession object created
by the Web application to be visible to other application servers. See Chapter
21, “Creating Web Applications,” in the EAServer Programmer’s Guide for
information about distributable Web applications.