Redis

Recently we moved the Transloadit status page from an unmanaged EC2 instance to the Nodejitsu platform. We kept status uptime history in redis, and obviously I wanted to preserve that data. For the new setup I did not have access to the filesystem, I only had a redis port to talk to. So instead of rsyncing the .rdb file I used Redis replication to migrate the data between instances.

Don't know Redis? Think Memcache, with support for for lists, and disk-based storage. You can use Redis as a database, queue, cache server or all of those combined. Let's see how you can use this power in your PHP apps.