Running applications in production means maintaining an “always-on” posture through disruptions. Infrastructure fails; dependencies slow down, and networks partition, not as rare exceptions but as a normal condition of running at scale. Withstanding and recovering from those disruptions is a core requirement, not an afterthought. In practice, that requirement shows up as a set of moments you may already know. A customer notices an outage, or a page fires, and the underlying cause could be any number of things: a GPU throwing hardware faults that fail the tasks on an instance, an Availability...

Source: The New Stack