Red Hat Directory Server 8.0 Administrator's Guide

Replication”.
2.3. Cascading Replication
In a cascading replication scenario, one server, a hub, acts both as a consumer and a supplier.
It holds a read-only replica and maintains a changelog, so it receives updates from the supplier
server that holds the master copy of the data and, in turn, supplies those updates to the
consumer. Cascading replication is very useful for balancing heavy traffic loads or to keep
master servers based locally in geographically-distributed environments.
Figure 8.4, “Cascading Replication” shows an example of a simple cascading replication
scenario, though it is possible to create more complex scenarios with several hub servers.
Figure 8.4. Cascading Replication
Chapter 8. Managing Replication
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