How Many WebLogic Server Clusters Can Be Used With MAN Replication?
(Doc ID 2098748.1)
Last updated on JUNE 16, 2017
Applies to:Oracle WebLogic Server - Version 188.8.131.52.0 and later
Information in this document applies to any platform.
It has been asked how many clusters can be used with metropolitan area network (MAN) replication, as the the documentation says "between two separate clusters" and "multiple clusters." Can MAN replication be used with multiple clusters?
To provide failover within a MAN, WebLogic Server provides an in-memory mechanism that works between two separate clusters. This allows session state to be replicated synchronously from one cluster to another, provided that the network latency is a few milliseconds. The advantage of using a synchronous method is that reliability of in-memory replication is guaranteed.
From Replication Within a MAN:
This section discusses possible failover scenarios across multiple clusters within a MAN.
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