Sun Java System Directory Server Enterprise Edition 6.3 Deployment Planning Guide

Using Application Isolation

In the scenario illustrated in the following figure a bug in Application 1 causes Directory Server to fail. The proxy configuration ensures that LDAP requests from Application 1 are only ever sent to Master 1 and to Master 3. When the bug occurs, Masters 1 and 3 fail. However, Applications 2, 3, and 4 are not disabled, because they can still reach a functioning Directory Server.

Figure 12–5 Using Application Isolation in a Scaled Deployment

Figure shows Directory Proxy Server balancing requests based
on client application.