SOA Governance and API Management : Administering Mediator : Clustering and Load Balancing : Creating a Mediator Cluster
Creating a Mediator Cluster
To create a cluster that includes Mediator, you must configure Integration Servers, a third-party load balancer, CentraSite, and instances of Mediator.
Configuring Integration Server
Mediator's cluster implementation is built upon the Integration Server's cluster support. You must configure the Integration Servers in the cluster as described in the webMethods Integration Server Clustering Guide.
Configuring the Third-Party Load Balancer
You must configure a third-party load balancer to use clustering in Mediator. You must use the load balancer to configure the following:
*A virtual network that defines the IP addresses of the nodes
*The WS-Context to route calls to the cluster
For information about configuring your load balancer for use in the clustered system, see the documentation for that product.
Configuring Mediator
All Integration Server cluster members must contain identically-configured instances of Mediator. You use the Mediator Administration console to configure each instance of Mediator. For more information, see Overview for Configuring Mediator.
Note:  
You can use the package replication functionality in the Integration Server Administrator to copy Mediator packages to other servers in the cluster. For information about package replication, see the webMethods Integration Server Administrator’s Guide.
Configuring CentraSite
When you configure CentraSite, you must configure the deployment endpoint of the target to point to the load balancer. For more information, see the Run-Time Targets section of the CentraSite documentation.
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