Oracle Fusion Middleware Deployment Planning Guide for Oracle Directory Server Enterprise Edition

Basic Replication Concepts

The replication mechanism is described in detail in Chapter 7, Directory Server Replication, in Oracle Fusion Middleware Reference for Oracle Directory Server Enterprise Edition. The following section provides basic information that you need to understand before reviewing the sample topologies described later in this chapter.

Master, Consumer, and Hub Replicas

A database that participates in replication is defined as a replica.

Directory Server distinguishes between three kinds of replicas:

The following figure illustrates the role of each of these replicas in a replication topology.

Figure 10–1 Role of Replicas in a Replication Topology

Figure shows the flow of replication traffic and LDAP

Note –

The previous figure is for illustration purposes only and is not necessarily a recommended topology. Directory Server supports an unlimited number of masters in a multi-master topology. A master-only topology is recommended in most cases.