This phrase is new and it originated at Netflix back in 2010. I was listening to Nora Jones, a Netflix engineer at the AWS re-Invent conference few weeks back, where she talked about this. The principle of Chaos goes like this, \u201cChaos Engineering is the discipline of experimenting on a distributed system in order to build confidence in the system\u2019s capability to withstand turbulent conditions in production.\u201d Distributed systems have too many moving parts and failures can occur at various levels \u2013 hard disks can fail, the network can go down, a sudden surge in customer traffic can overload a functional component\u2014the list goes on. All too often, these events trigger outages, poor performance, and other undesirable behaviors. Chaos Engineering is a method of experimentation on infrastructure that brings systemic weaknesses to light. This empirical process of verification leads to more resilient systems, and builds confidence in the operational behavior of those systems.<\/p>\n