SOA Governance and API Management : Administering Mediator : Clustering and Load Balancing : Load Balancers : Load Balancer URLs
Load Balancer URLs
Load balancer URLs define for CentraSite the endpoints of the nodes in a cluster. When a service is deployed to a cluster, the node that performs the deployment sends the load balancer URL as the new endpoint to CentraSite as part of its virtual service status message.
CentraSite stores this load balancer URL endpoint in the registry/repository. Since all of the nodes in the cluster use the same load balancer URL, CentraSite accepts messages from any node in the cluster as if they came from a single instance of Mediator.
A load balancer URL consists of a host name (or IP address) and port number of the load balancer as follows:
http://hostname:portnumber
or
http://IP-address:portnumber
Note:  
You can also configure the load balancer URL to use the HTTPS protocol.
For example, if the host name of the load balancer is ExampleHost, and its port number is 80, the load balancer URL would be:
http://ExampleHost:80
You must configure all the nodes in a cluster with the same load balancer URL. For information about configuring the load balancer URL for Mediator, see Load Balancing Configuration.
The following diagram shows how the load balancer works in the clustered system.
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