How to determine which node of a WildFly cluster should be designated as the Systems Operation Node (SON) in RSA Identity Governance & Lifecycle
Originally Published: 2020-04-01
Article Number
Applies To
RSA Version/Condition: 7.1.x, 7.1.x, 7.2.x
Platform/Application Server: WildFly
Issue
Resolution
This is best illustrated with an example. The following example illustrates this concept with a two-node cluster:
Scenario 1: The SON is on the domain controller.
Node 1: Domain controller and SON.
Node 2: General node.
Node 2: General node.
If Node 1 goes down, the entire application becomes unavailable because a cluster cannot operate without a domain controller.
If Node 2 goes down, Node 1 will stay fully functional because it is the SON.
If Node 2 goes down, Node 1 will stay fully functional because it is the SON.
Scenario 2: The SON is on a general node.
Node 1: Domain controller.
Node 2: General node and SON.
Node 2: General node and SON.
If Node 1 goes down, the entire application becomes unavailable because a cluster cannot operate without a domain controller.
If Node 2 goes down, Node 1 will stay functional but with limited functionality since the SON will be gone. No data collections or AFX requests will process.
If Node 2 goes down, Node 1 will stay functional but with limited functionality since the SON will be gone. No data collections or AFX requests will process.
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