Rails: The Sharp Parts. An Index Is Not a Plan | baweaver

Rails is great for a lot of things, but as your app gets bigger you’re going to start running into issues which require you to go deeper for solutions, and some of them? Well they have a few sharp and pointy edges that it’s best to be aware of. This is a series where we dive into a few of those sharp edges, the documentation around them (they do warn you for a lot of these), and when and why they go from good solution to production incidents. Last time we looked at lock. This time we’re looking at what people reach for when a page gets slow. The query’s crawling, you open the logs, you find the offender, and you do what we’ve all done:.