The federated caching feature federates cache data asynchronously across multiple geographically dispersed clusters. Cached data is federated across clusters to provide redundancy, off-site backup, and multiple points of access for application users in different geographical locations.
To configure federation:
When a topology is selected, a topology configuration is
automatically created and named
Default-Topology topology configuration is
created and used if no other federation topology is specified in
the cache configuration file.
When using federation, matching topologies must be
configured on both the local and remote clusters. For example,
none for the topology in a local
active-active as the topology in
the remote cluster can lead to unpredictable behavior.
Similarly, if a local cluster is set to use active-passive, then
the remote cluster must be set to use passive-active.