HAProxy Enterprise Documentation 2.0r1
To ensure that your load balancer maintains highly available, you can run two or more load balancer instances and group them into a cluster.
This section describes techniques for setting up a load balancer cluster.
- Active/Active Clustering
Serve traffic to all load balancer nodes
- Active/Standby Clustering
Serve traffic from one instance while the others are on standby
High Availability in AWS
Next up Active/Active Clustering