In a single node setup, all the service controllers and the rule engine run on a single node. in this lesson, you learn to add multiple nodes and assign the service controllers and rule engine to different nodes. You can run the service controllers and the event processor in a standalone mode or in a high availability mode. In standalone mode, if the node fails, the server takes some time to bring up the node, the controllers, and the event processor running on that node. In the meantime, events may be lost. This can also result in a loss of alerts or duplication of alerts.

A high availability enabled mode has a primary node and a backup node. The primary node takes care of all the evaluation and processing activities, while the backup node mimics the activity of the primary node. When the primary node goes down, the backup node becomes the primary node and processes events and rules. The primary node becomes the backup node and no events are lost.

In this lesson, you also learn to reassign rules to different event processors.

In this lesson, you learn how to perform the following tasks:

Add a node.
Create a high availability event processor.
Verify the high availability settings.
Update the deployment policy.
Reassign a rule.

Before you add a node and start the lesson, verify that you shut down the run-time instance in RulePoint.