Redis Pub/Sub

Definitions

1. A fire-and-forget messaging system built into Redis where publishers send messages to named channels and all currently connected subscribers receive them in real time, with no persistence or delivery guarantees for offline clients.

   In plain English: A feature in Redis that lets one part of your system broadcast messages to any other parts that are listening right now, like a live radio channel.

   Example: "We use Redis Pub/Sub to broadcast cache invalidation events — if a subscriber misses one, the TTL catches it eventually."

Related Terms

• Event
• Game Loop
• Push Notification
• Queue
• WebRTC
• AMQP
• Dead Letter Queue
• Stream Processing
• Redis Stream