Overview

This section gives an overview of the target operation groups followed by the details on the supported routing algorithms for a target operation group. The routing algorithm type determines the routing of the request to an appropriate target operation grouped within a target operation group.

Using TIBCO API Exchange Gateway you can group target operations and add multiple target operations in a target operation group. You can also create multiple target operation groups as needed. When any client request is routed to a target operation group containing multiple target operations, the Core Engine forwards the request to a target operation based on type of the target operation group. The type of the target operation group indicates a routing algorithm to be used to select a target operation for processing a client request.

Note: The property tibco.clientVar.ASG/Routing/MinimumFailoverHTTPStatusCode in the asg.properties file allows the failure response from the backend to be propagated to the client even when the TargetOperations are configured with RoundRobinWithFailover or WeightedRoundRobinWithFailover. This is the minimum Error Status code after which the load balancer will continue with failover. Normally the value should be 500, but in some use cases, this can go up to 550.

See Types of Target Operations Group for supported types of target operation groups.