Site Reliability Engineering
3 articles
Your status page shows 99.9% uptime. Your customers are still complaining. That's the reliability vs. availability gap - and it trips up a lot of engineering teams. Availability is a number you can put on a status page. Reliability is whether your system actually does what users need it to do, consistently, over time. The two are related but not the same.
Andrea Brown
Most systems generate hundreds of metrics. Most of them don't tell you whether users are having a good experience. Google's four golden signals cut through that noise - latency, traffic, errors, and saturation are the four metrics that, together, catch virtually every meaningful failure mode. Here's how to measure and alert on each one correctly.
Jasmine Decker
Google invented SRE in 2003 because hiring more sysadmins wasn't working. Twenty years later it's one of the most sought-after disciplines in engineering. Here's what it actually means, what SREs do day-to-day, and how to know whether your organization is ready for it.
Alexander Eric