Setting Up A High-Availability Load Balancer (With Failover and Session Support) With HAProxy/Heartbeat On Fedora 8
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Setting Up A High-Availability Load Balancer (With Failover and Session Support) With HAProxy/Heartbeat On Fedora 8
This document describes how to set up a two-node load balancer in an
active/passive configuration with HAProxy and heartbeat on Fedora 8.
The load balancer acts between the user and two (or more) Apache web
servers that hold the same content. The load balancer passes the
requests to the web servers and it also checks their health. If one of
them is down, all requests will automatically be redirected to the
remaining web server(s). In addition to that, the two load balancer
nodes monitor each other using heartbeat. If the master fails, the
slave becomes the master - users won’t notice any disruption of the
service. HAProxy is session-aware - you can use it with any web
application that makes use of sessions like forums, shopping carts, etc.
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