165 lines
5.6 KiB
Markdown
165 lines
5.6 KiB
Markdown
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## Overview [](https://travis-ci.org/emqtt/emqttd) [](https://gitter.im/emqtt/emqttd?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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emqttd is a massively scalable and clusterable MQTT V3.1/V3.1.1 broker written in Erlang/OTP.
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emqttd is fully open source and licensed under the Apache Version 2.0. emqttd implements both MQTT V3.1 and V3.1.1 protocol specifications, and supports WebSocket, STOMP, SockJS, CoAP and MQTT-SN at the same time.
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emqttd requires Erlang R17+ to build.
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Demo Server: tcp://t.emqtt.io:1883
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Follow us on Twitter: [@emqtt](https://twitter.com/emqtt)
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## Goals
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The emqttd project is aimed to implement a scalable, distributed, extensible open-source MQTT broker for IoT, M2M and Mobile applications that hope to handle millions of concurrent MQTT clients.
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* Easy to install
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* Massively scalable
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* Easy to extend
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* Solid stable
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## Features
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* Full MQTT V3.1/V3.1.1 protocol specification support
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* QoS0, QoS1, QoS2 Publish and Subscribe
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* Session Management and Offline Messages
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* Retained Message
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* Last Will Message
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* TCP/SSL Connection
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* MQTT Over WebSocket(SSL)
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* HTTP Publish API
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* STOMP protocol
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* STOMP over SockJS
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* $SYS/# Topics
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* ClientID Authentication
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* IpAddress Authentication
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* Username and Password Authentication
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* Access control based on IpAddress, ClientID, Username
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* Authentication with LDAP, Redis, MySQL, PostgreSQL
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* Cluster brokers on several servers
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* Bridge brokers locally or remotely
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* mosquitto, RSMB bridge
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* Extensible architecture with Hooks, Modules and Plugins
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* Passed eclipse paho interoperability tests
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## Modules
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Module | Description
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-------------------------|------------------------------
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emqttd_auth_clientid | Authentication with ClientIds
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emqttd_auth_username | Authentication with Username and Password
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emqttd_auth_ldap | Authentication with LDAP
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emqttd_mod_presence | Publish presence message when client connected or disconnected
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emqttd_mod_subscription | Subscribe topics when client connected
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emqttd_mod_rewrite | Topic path rewrite like HTTP rewrite module
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## Plugins
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Plugin | Description
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--------------------------------------------------------------------------|--------------------------------------
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[emqttd_plugin_template](https://github.com/emqtt/emqttd_plugin_template) | Plugin template and demo
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[emqttd_dashboard](https://github.com/emqtt/emqttd_dashboard) | Web Dashboard
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[emqttd_plugin_mysql](https://github.com/emqtt/emqttd_plugin_mysql) | MySQL Authentication/ACL Plugin
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[emqttd_plugin_pgsql](https://github.com/emqtt/emqttd_plugin_pgsql) | PostgreSQL Authentication/ACL Plugin
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[emqttd_plugin_redis](https://github.com/emqtt/emqttd_plugin_redis) | Redis Authentication/ACL Plugin
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[emqttd_plugin_mongo](https://github.com/emqtt/emqttd_plugin_mongo) | MongoDB Authentication/ACL Plugin
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[emqttd_stomp](https://github.com/emqtt/emqttd_stomp) | Stomp Protocol Plugin
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[emqttd_sockjs](https://github.com/emqtt/emqttd_sockjs) | SockJS(Stomp) Plugin
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[emqttd_recon](https://github.com/emqtt/emqttd_recon) | Recon Plugin
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## Dashboard
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A Web Dashboard will be loaded when the emqttd broker started successfully.
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The Dashboard helps monitor broker's running status, statistics and metrics of MQTT packets.
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Default Address: http://localhost:18083
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Default Login/Password: admin/public
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## Design
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## QuickStart
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Download binary package for Linux, Mac and Freebsd from [http://emqtt.io/downloads](http://emqtt.io/downloads).
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Installing on Ubuntu64, for example:
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```sh
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unzip emqttd-macosx-0.16.0-beta-20160216.zip && cd emqttd
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# start console
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./bin/emqttd console
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# start as daemon
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./bin/emqttd start
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# check status
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./bin/emqttd_ctl status
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# stop
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./bin/emqttd stop
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```
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Installing from source:
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```
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git clone https://github.com/emqtt/emqttd.git
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cd emqttd && make && make dist
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cd rel/emqttd && ./bin/emqttd console
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```
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## Documents
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Read Documents on [emqttd-docs.rtfd.org](http://emqttd-docs.rtfd.org) for installation and configuration guide.
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## Benchmark
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Latest release of emqttd broker is scaling to 1.3 million MQTT connections on a 12 Core, 32G CentOS server.
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Benchmark 0.12.0-beta on a CentOS6 server with 8 Core, 32G memory from QingCloud:
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250K Connections, 250K Topics, 250K Subscriptions, 4K Qos1 Messages/Sec In, 20K Qos1 Messages/Sec Out, 8M+(bps) In, 40M+(bps) Out Traffic
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Consumed about 3.6G memory and 400+% CPU.
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Benchmark Report: [benchmark for 0.12.0 release](https://github.com/emqtt/emqttd/wiki/benchmark-for-0.12.0-release)
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## Supports
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* Twitter: [@emqtt](https://twitter.com/emqtt)
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* Homepage: http://emqtt.io
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* Downloads: http://emqtt.io/downloads
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* Wiki: https://github.com/emqtt/emqttd/wiki
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* Forum: https://groups.google.com/d/forum/emqtt
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* Mailing List: <emqtt@googlegroups.com>
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* Issues: https://github.com/emqtt/emqttd/issues
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* QQ Group: 12222225
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## Contributors
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* [@callbay](https://github.com/callbay)
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* [@lsxredrain](https://github.com/lsxredrain)
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* [@hejin1026](https://github.com/hejin1026)
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* [@desoulter](https://github.com/desoulter)
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* [@turtleDeng](https://github.com/turtleDeng)
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* [@Hades32](https://github.com/Hades32)
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* [@huangdan](https://github.com/huangdan)
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* [@phanimahesh](https://github.com/phanimahesh)
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* [@dvliman](https://github.com/dvliman)
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## Author
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Feng Lee <feng@emqtt.io>
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## License
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Apache License Version 2.0
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