You can associate a repository with more than one Web Services Hub. When you associate one repository with multiple Web Services Hub Services, multiple Web Services Hub Services can run the same web services.

Use a third party load balancer to manage and distribute requests to the Web Services Hub Services so that the service request load is balanced across the Web Services Hub Services. A hardware load balancer used in a production environment can optimize the performance of web services. Set the URL for the load balancer when you create a Web Services Hub Service in the Administrator tool.

When you use batch web services, the load balancer cannot distribute requests across multiple Web Services Hub Services. The session ID that the Web Services Hub uses to authenticate the web service client is valid only for the Web Services Hub where you invoke the login operation. Multiple Web Services Hub Services on the same or another node cannot use the same session ID for the batch web services operations.