Latest Fault-Tolerance Articles

High availability is not achieved by running more servers. A system becomes highly available when individual component failures do not become application-wide outages and recovery happens automatically within an acceptable time.

Availability patterns are system design techniques that keep applications operational during failures, overload, dependency issues, or partial outages.

A load balancer can protect an application from individual backend failures, but only if the load-balancing layer itself is highly available . Replacing one application server with one load balancer simply moves the single point of failure.