The load-balancing functionality is used for reducing the load of the J2EE server by concentrating the service execution requests from a service requester at one point through a parallel arrangement of multiple HCSC servers. The service platform allows you to distribute the load by using the following load balancers:

• Load balancer
  Used for synchronous (Web Services) standard reception.
  
• CTM
  Used for synchronous (Session Bean) standard reception.
  

In the execution environment of the service platform, you can combine multiple HCSC servers by using a load balancer to set up an environment of a more redundant cluster configuration.

The following figure shows the load balance cluster configuration of the HCSC server.

Figure 1-14 Load balance cluster configuration of the HCSC server

You can distribute and send execution requests for service components from the service requester to multiple HCSC servers by using a load balancer, only when the synchronous (Web Services or Session Bean) standard reception is used.

Depending on the load balancer you are using, you can add or delete HCSC servers configuring the load balance cluster, without stopping operation. You can also add a new service adapter or business process without stopping service adapters and business processes deployed on the HCSC server.