Conf42 Cloud Native 2021

You shipped your latest release. You tested it on emulators, QA devices, and the latest OS versions. But now it’s live and running on thousands or millions of real devices, across a jungle of screen sizes, hardware specs, OS versions, and network conditions. A user reports a crash on an old Samsung device over 3G. Someone else complains the app feels “sluggish” after updating. You dig through logs. Rebuild test cases. Ping the backend team. Try to reproduce. Yet, still no answers.

There are certain important metrics that every mobile app has in common. At Honeycomb, we have surveyed these metrics across iOS and Android, and have defined a set of Core Mobile Vitals we think every app developer should care about. The purpose of these vitals is similar to that of Core Web Vitals for web frontends.

I anticipated this would be a challenging time and that I would be exhausted. So, the plan became: do all the demanding things, take my sabbatical in May, and use April as an ‘in-between’ period with a bit less pressure. I would willingly step off the gas and let other SREs on the team cover pressing matters, as a sort of pre-game for my full month away.