/emqttd

Erlang MQTT Broker

Primary LanguageErlangMIT LicenseMIT

Overview Build Status

emqttd is a massively scalable and clusterable MQTT V3.1/V3.1.1 broker written in Erlang/OTP. emqttd support both MQTT V3.1/V3.1.1 protocol specification with extended features.

emqttd requires Erlang R17+ to build.

Goals

emqttd is aimed to provide a solid, enterprise grade, extensible open-source MQTT broker for IoT(M2M) applications that need to support ten millions of concurrent MQTT clients.

  • Easy to install
  • Massively scalable
  • Easy to extend
  • Solid stable

Features

  • Full MQTT V3.1/V3.1.1 protocol specification support
  • QoS0, QoS1, QoS2 Publish and Subscribe
  • Session Management and Offline Messages
  • Retained Messages Support
  • Last Will Message Support
  • TCP/SSL Connection Support
  • MQTT Over Websocket(SSL) Support
  • HTTP Publish API Support
  • $SYS/borkers/# Support
  • Client Authentication with clientId, ipaddress
  • Client Authentication with username, password.
  • Client ACL control with ipaddress, clientid, username.
  • Cluster brokers on several servers.
  • Bridge brokers locally or remotelly
  • 500K+ concurrent clients connections per server
  • Extensible architecture with plugin support
  • Passed eclipse paho interoperability tests

Design

emqttd architecture

QuickStart

Download binary packeges for linux, mac and freebsd from http://emqtt.io/downloads.

For example:

tar xvf emqttd-ubuntu64-0.7.0-alpha.tgz && cd emqttd

# start console
./bin/emqttd console

# start as daemon
./bin/emqttd start

# check status
./bin/emqttd_ctl status

# stop
./bin/emqttd stop

Build from source:

git clone https://github.com/emqtt/emqttd.git

cd emqttd && make && make dist

GetStarted

Read emqtt wiki for detailed installation and configuration guide.

Benchmark

Benchmark 0.6.1-alpha on a ubuntu/14.04 server with 8 cores, 32G memory from QingCloud:

200K+ Connections, 200K+ Topics, 20K+ In/Out Messages/sec, 20Mbps+ In/Out with 8G Memory, 50%CPU/core

License

The MIT License (MIT)

Contributors

@hejin1026 @desoulter @turtleDeng @Hades32 @huangdan

Author

Feng Lee feng@emqtt.io