When an 'Unused' Redis Configuration Slowed Down a Deployment
A while back, I was migrating a Rails eCommerce application to a new server. The migration itself was pretty straightforward. I provisioned the new server, copied over the deployment configuration, and started bringing the application online. One thing I hadn’t set up yet was Redis. Since I wasn’t planning on using caching immediately, I figured I could leave it for later. As part of that, I removed the REDIS_CACHE_URL environment variable from the deployment configuration. ...