Chapter 6, “Clusters and Synchronization,” in the EAServer System Administration Guide describes how to configure a cluster. To support in-memory failover, you must define mirror pairs within the cluster.
A mirror pair consists of two servers within the cluster that use the EAServer message service to replicate state information for session components hosted on those servers. Servers in a mirror pair should have the same set of stateful components installed. One server cannot be a member of more than one mirror pair.
Configuring mirror pairs
Display the Mirror Groups tab in the Cluster Properties dialog box.
Click Add.
Enter the IIOP URLs for the two servers in the mirror pair, separated by a comma. For example:
iiop://mypc:9000,iiop://yourpc:9100
Repeat to add as many mirror pairs as required.
Configuring server session cache size
For each logical server in a mirror pair, configure
the server property com.sybase.jaguar.server.ps.cache.size.
This property specifies the maximum size of the memory cache used
to hold session data for components running on the server. The value
has the same syntax as the Cache Size property described in “Mirror Cache tab component properties”.
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