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Load Balancing with Apache

by Software Developer, Web Developer at Found Line on Mar 25, 2011

  • 36,978 views

This is a presentation made at the Burlington, Vermont PHP Users Group about configuring load balancing using the Apache HTTP Server. Load balancing is a technique that can distribute work across ...

This is a presentation made at the Burlington, Vermont PHP Users Group about configuring load balancing using the Apache HTTP Server. Load balancing is a technique that can distribute work across multiple server nodes—here we will discuss load balancing HTTP (i.e. web) traffic. There are many software and hardware load balancing options available including HAProxy, Varnish, Pound, Perlbal, Squid, nginx, and Linux-HA (High-Availability Linux) on Linux Standard Base (LSB). However, many web developers are already familiar with Apache as a web server and it is relatively easy to also configure Apache as a load balancer.

Related concepts such as shared nothing architecture are discussed. We also take a look at some basic load balancing scenarios and features including sticky sessions and proxying requests based on HTTP method. Distributed load testing with Tsung is briefly discussed as well.

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Load Balancing with Apache Load Balancing with Apache Presentation Transcript