Chapter 8. Managing Replication

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

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HP UX Red Hat Direry Server Software manual Cascading Replication