Simple IP sprayer topology
Figure 3-9 depicts a simple horizontal scaling configuration that uses an IP sprayer on the load balancer node to distribute requests among appservers on multiple machines.
Figure 3-9 Simple IP sprayer-based horizontally scaled topology
A backup node for the load balancer node is normally configured in order to eliminate it as a single point of failure.
Note In an IP sprayer (or similarly configured) topology, each Web server can be configured to perform workload management over all appservers in a specific cluster. In this configuration, session affinity will be preserved, no matter which Web server is passed the request by the IP sprayer. |
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