Building a Scalable Highly Available Web Cluster Part 1: The Load Balancing Tier

In an earlier post we discussed overall cluster configuration and now we’re going to begin actual cluster configuration with the load-balancing tier. Each load balancer will run following software:

  • HAProxy – HAProxy will facilitate the actual load balancing of traffic to web nodes behind the load balancers.
  • Keepalived – Keepalived will allow for IP failover in the event one of the load balancers fails.

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