The article analyzes the limitations of native WebSocket for large‑scale, low‑bandwidth, and unreliable‑network scenarios and demonstrates how MQTT, especially with EMQX, provides built‑in message routing, QoS levels, offline storage, and effortless clustering, reducing development and operational overhead.
This tutorial walks through installing EMQX as an MQTT broker using Docker, configuring the server, and creating PHP publisher and subscriber clients with the Workerman MQTT library, plus WebSocket and MQTT.js examples for full end‑to‑end IoT communication.
This tutorial explains how to use the open‑source MQTT broker EMQX together with Apache JMeter to create, configure, and run performance tests for IoT platforms, covering installation, test plan creation, and result analysis.
This article explains how EMQX 3.0 maintains routing and distribution layers, detailing the subscriber tables, shared‑subscription handling, topic‑trie structures, route look‑ups, and the Erlang code that drives message matching and dispatch across a clustered broker.
This article introduces the open‑source EMQX MQTT broker, explains the MQTT protocol basics, and provides an in‑depth analysis of the broker's connection and session processes—including their state structures, message flows for connect, subscribe, unsubscribe, ping, disconnect, and QoS 0/1/2 publishing—supported by illustrative code snippets and diagrams.
