Publish-Subscribe

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Principles

Subscribers subscribe to messages containing events, sensor measurements, alerts, alarms, notifications, ...

Subscription could be done a topic or a topic pattern or on a message content.

Publishers publish messages on a topic or a set of topics

Features

  • Content-based routing
  • TCP or UDP or Multicast UDP or Broadcast (in LAN) or mix
  • LAN or WAN
  • Realtime or not
  • QoS or not (order, reliability, high-availability ...)
  • Centralised vs Distributed (P2P, ...)
  • Atomicity (ACID transaction)
  • Broker required or Direct

Protocols and API

PubSub-as-a-Service Providers

Papers