Read your postmortems a quest for SRE continuous improvement - Diana Todea - JOTB24
In a war room full of SREs and Incident Commanders you can almost hear the muffled cries: Why is it so slow? Where is the data gone? What happened to our deployments? Is this seriously not encrypted? Well, it’s because … you see … we forgot to set up backups. We forgot to set up CPU hard limits. We didn’t test it before. We should have gone canary.
This talk explores the core lessons from top severity on-call incidents related to the data loss, latency, degradation, under scaling and under configuration. We will start by analysing the root causes, then move on to examine the automation measures we implemented, the alerting tools we had to invent and the capacity issues we had to overcome. By the end of this talk, we will understand from an SRE perspective why continuously improving the system design is the golden key to successful and reliable systems.
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