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Background documentation Load Balancing of Java Applications Locate the document in its SAP Library structure

The purpose of load balancing is to distribute inbound requests optimally to the available resources.

Technical System Landscape

The SAP NetWeaver AS provides load balancing at various levels.

These are shown as (1) and (2) in the figure below.

This graphic is explained in the accompanying text

·        Load balancing between many SAP NetWeaver AS instances (1)

You can start a system with many Java dispatchers, for which the Structure linkSAP Web Dispatcher or a different load balancer is already activated as a Web switch. For more information, see Structure linkLoad Balancing Between Many Java Instances.

·        Load balancing within the SAP NetWeaver AS instance (2)

In the Structure linkJava Instance the Structure linkJava Dispatcher distributes the inbound requests to the Structure linkServer Processes to which it is connected. The Java dispatcher runs the load balancing when the first session request arrives. The dispatcher ensures that subsequent requests get to the server process that is processing this session.

For more information, see:

Structure linkLoad Balancing by the Java Dispatcher

Structure linkLoad Balancing for J2EE Web Applications

Structure linkRegistering Server Processes for HTTP Load Balancing

 

 

 

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