Rabbit supports the choice of durable exchanges, queues, and messages. There are (tunable, negotiable) performance penalties in terms of latency and throughput.

Rabbit supports the choice of durable exchanges, queues, and messages. There are (tunable, negotiable) performance penalties in terms of latency and throughput. We are partly in agreement regarding f/t. Logging comes into play when digging into recurring failure (bugs). Fault tolerance will not save you from bugs and bug hunting. [p.s. to add, performance tuning/trouble-shooting also require instrumentation. Instrumentation would appear to be a fundamental (and useful) capability.]