Redis

Redis is an in-memory data store that is widely used for caches, queues and sessions. This tag collects guides about keeping RSS and Atom feeds in Redis so that busy sites do not rebuild the same document for every request. Articles explain how to store finished XML with an expiry, protect the database with a lock and keep a stale copy for failures. They also cover jitter on expiry times, deleting keys when an article is published, memory limits with an eviction policy and handling a cache that is unavailable. The advice helps developers keep feeds fast and shareable on social networks automatically.