What additional steps are needed for Clustering Identity Portal between 2 nodes?
1. Identity Portal nodes use the JGroups messaging protocol to communicate internally.
2. On any 14.x release of Identity Portal, as long as the Identity Portal nodes are configured to use the same database – the cluster should work out of the box with no additional steps.
This is achieved by a JGROUPSPING table on the Identity Portal database which manages the node list automatically (e.g. when a node is powered on – it is able to both register itself and detect the other cluster members).
Each node registers itself twice, for both a "portal" and "hibernate" cluster group name:
There should be only twice as many entries in the JGROUPSPING table as there are Identity Portal nodes in the cluster.