Setting up a failover cluster

A failover cluster is generally fronted by a load balancer and one or more nodes that are designated as primary nodes, while some other nodes are designated as backup nodes. Such a cluster can be set up with or without high availability. If all the states are replicated from the primaries to the backups, then when a failure occurs, the clients can continue without a hitch. This will ensure high availability. However, this state replication has its overhead. If you are deploying only stateless web services, you can run a setup without any state replication. In a pure failover cluster (that is, without any state replication), if the primary fails, the load balancer will route all subsequent requests to the backup node, ...

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