"Thirty years ago, Jim Gray noted that “A way to improve availability is to install proven hardware and software, and then leave it alone.”
For companies that provide services over the Internet, “leaving it alone” isn't an option. Such service providers must continually make changes to increase the service's value, such as adding features and improving performance. At Netflix, engineers push new code into production and modify run-time configuration parameters hundreds of times a day."
Predictable system load: orange is predicted trend, blue is measured
Chaos Engineering at Twilio
