Using in-memory caching for your web app can dramatically increase the responsiveness of your web app (Apdex) — especially if you make a lot of database calls or complicated joins. Getting caching setup for your web app but also for your development environment can be, well, a pain in the ass. So here’s my step-by-step guide to implement memcached (not memcache, as ElastiCache uses memcached) in CodeIgniter that runs during development with MAMP 2.0 and in production in AWS Elastic Beanstalk with ElastiCache. Phew. Let’s get started.
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