We have configured Apache Webserver to load balance 3 tomcat instancees using mod_jk module. The worker of type ajp13 is used and the AJP13Connector in server.xml is configured to receive the requests. Our requirement is that each tomcat instance should receive a maximum of 5 concurrent requests only. In the workers.properties, for each worker the load balancing factor(lbfactor) is kept the same and is equal to 100. In server.xml, Ajp13Connector is configured to have minProcessors=5, maxProcessors=5 But the problem is that apache is not load balancing the requests properly. sometimes 6 requests are forwarded to one tomcat and 4 to another. Apache seems to use round-robin algorithm for load-balancing. we need a mechanism that can load balance properly or if a 6th concurrent request comes, it should be queued, and proccesed later.we have tried setting the acceptCount parameter also. We are using HP-UX Apache-based Web Server A.1.0.03 and Tomcat 4.1.12. Our application is running in HP-UX B11.11. Please do let us know the solution to the above problem.