Chapter 5. Load Balancing with mod_cluster
In this chapter, we will have a look at another load balancer solution. It is called mod_cluster (http://www.jboss.org/mod_cluster).
In comparison with JK, mod_cluster is more powerful and complex in design. Nevertheless, the added complexity in design doesn't mean it's harder to use; mod_cluster is designed to be scalable and can dynamically find the worker nodes so as to form a cluster.
Such kinds of flexibilities usually create confusion among newcomers and give them the impression that mod_cluster is harder to use. Thus, to appreciate the power of mod_cluster and its simplicity of usage, we must understand its design first.
The design of mod_cluster
From the previous chapter, we know that JK uses a TCP ...
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