SRE Weekly Issue #331

I’ve been listening to this podcast this week and I love it! Each episode covers a disaster, safety theory, and other topics — with no ads. Their site is down right now, but the podcast is available on the usual platforms.

  Drew Rae — DisasterCast

If we want to get folks to own their code in production, we need to teach them how to think like an SRE.

  Boris Cherkasky

Let’s look at three mistakes I’ve made during those stressful moments during the beginning of an incident — and discuss how you can avoid making them.

The mistakes are:

Mistake 1: We didn’t have a plan.
Mistake 2: We weren’t production ready.
Mistake 3: We fell down a cognitive tunnel.

  Robert Ross — FireHydrant

At what point does your canary test indicate failure? Should the criteria be the same as your normal production alerting?

  Øystein Blixhavn

This is a followup to a previous article about on-call health. In this one, the author shares metrics about the number of alerts and discusses whether this number is useful.

  Fred Hebert — Honeycomb

Their dashboard crashed for 50% of user sessions, so they had a lot of work ahead of them. Find out how they got crash-free sessions to 99.9% and improved their time to respond to incidents.

  Sandesh Damkondwar — Razorpay

Rogers Communications, a major telecom in Canada, had a country-wide outage earlier this month. I don’t normally include telecom outages in the Outages section because they rarely share information that we can learn from.

This time, Rogers released a (redacted) report on their outage, and this Twitter thread summarizes the key points.

  @atoonk on Twitter