In earlier versions of Rational Publishing Engine, to publish documents using Rational Publishing Engine web service, you had to provide the Rational Publishing Engine web service WSDL URL in the Preferences window. To make use of load balanced Rational Publishing Engine Web Service, you must configure the Rational Publishing Engine client with the gateway entry, which is a new URL. You can then publish documents using the load balancer or using the existing web service instance. The server which provides the load balancing returns a URL that has the address of the web service either in the first or second instance of the Rational Publishing Engine web service. When the Rational Publishing Engine client sends the request to this URL, the requests goes through the load balancer and the Rational Publishing Engine client receives the address of the Rational Publishing Engine web service node that the load balancer has assigned. All further communication for that document generation session occurs directly with the assigned web service.
This new URL, for example http://server:port/rpe/wsgate, which provides a gate to the Rational Publishing Engine web service, can also be used outside of the load balancer environment. The URL redirects the Rational Publishing Engine to the web service URL from the same server. The standard web services can run in WebSphere Application Server as well as Apache Tomcat.