New Relic's largest monolith handles 200k req/min and communicates with more than 40 external services and 11 mysql databases; this should result in constant downtime. Being mindful and alerting on the right things has been critical for us. This talk will cover a successful process for identifying trustworthy data, refining alert conditions, and what kinds of checks to page on. _____________________________________________________________ Cloud 66 - Deploy your Rails code directly from your repo to any cloud in minutes. Cloud 66 offers the convenience of Heroku, but on any cloud and in any region, with persistent storage, custom network configuration, zero downtime deployments, blue/green and canary releases, WAF, and more. Get $100 Cloud 66 Free Credits with the code: RailsConf2022 ($100 Cloud 66 Free Credits, for the new user only, valid till 31st December 2022) Cloud 66: https://cloud66.com/frameworks/rails?utm_source=e&utm_medium=d&utm_campaign=ytRailsConf-22