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Lumen - Statically compiled Erlang for x86 2021-04-08. The Lumen Project is an ambitious compiler development effort to create a complimentary set of compilers and tools that allow developers to get the power of the Erlang VM, The BEAM, in places it does not traditionally fit.

1. Download Mac Package from. Could use apt-get on Ubuntu, yum on CentOS/RedHat and brew on Mac to install Erlang and Git. When all dependencies are ready, clone the.
2. $ erl -version Erlang (SMP,ASYNCTHREADS,HIPE) (BEAM) emulator version 10.1 Linux Debian Linux sudo apt-get update sudo apt-get install erlang Ubuntu Linux sudo apt-get update sudo apt-get install erlang Mac OS X Using Homebrew. With Homebrew installed run the following: brew update brew install erlang Using MacPorts.

The emqttd broker is cross-platform, which could be deployed on Linux, FreeBSD, Mac, Windows and even Raspberry Pi.

# Download Packages

Download binary packages from: https://www.emqx.io/downloads (opens new window)

The package name consists of platform, version and release time.

For example: emqttd-centos64-1.1-beta-20160601.zip

# Installing on Linux

Download CentOS Package from: https://www.emqx.io/downloads/v1/latest/emqttd-centos (opens new window) , and then unzip.zip:

Start the broker in console mode:

If the broker is started successfully, console will print:

CTRL+C to close the console and stop the broker.

Start the broker in daemon mode:

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The boot logs in log/emqttd_sasl.log file.

Check the running status of the broker:

Or check the status by URL:

Stop the broker:

# Installing on FreeBSD

Download FreeBSD Package from: https://www.emqx.io/downloads/v1/latest/emqttd-freebsd.zip (opens new window)

The installing process is same to Linux.

# Installing on Mac OS X

We could install the broker on Mac OS X to develop and debug MQTT applications.

Download Mac Package from: https://www.emqx.io/downloads/v1/latest/emqttd-macosx.zip (opens new window)

Configure 'lager' log level in 'etc/emqttd.config', all MQTT messages recevied/sent will be printed on console:

The install and boot process on Mac are same to Linux.

# Installing on Windows

Download Package from: https://www.emqx.io/downloads/v1/latest/emqttd-windows.zip (opens new window) .

Unzip the package to install folder. Open the command line window and 'cd' to the folder.

Start the broker in console mode:

If the broker started successfully, a Erlang console window will popup.

Close the console window and stop the emqttd broker. Prepare to register emqttd as window service.

Install emqttd serivce:

Start emqttd serivce:

Stop emqttd serivce:

Uninstall emqttd service:

Warning

'./bin/emqttd_ctl' command line cannot work on Windows.

# Installing From Source

The emqttd broker requires Erlang/OTP R17+ and git client to build:

Install Erlang: http://www.erlang.org/ (opens new window)

Install Git Client: http://www.git-scm.com/ (opens new window)

Could use apt-get on Ubuntu, yum on CentOS/RedHat and brew on Mac to install Erlang and Git.

When all dependencies are ready, clone the emqttd project from github.com and build:

The binary package output in folder:

# TCP Ports Used

The TCP ports used can be configured in etc/emqttd.config:

Download Erlang 23

The 18083 port is used by Web Dashboard of the broker. Default login: admin, Password: public

# Quick Setup

Two main configuration files of the emqttd broker:

Two important parameters in etc/vm.args:

Download Erlang Documentation Html

Tip

+Q > maximum number of allowed concurrent clients +P > maximum number of allowed concurrent clients * 2

The maximum number of allowed MQTT clients:

# /etc/init.d/emqttd

chkconfig:

boot test:

Tip

Erlang Download Windows 10

erlexec: HOME must be set uncomment '# export HOME=/root' if 'HOME must be set' error.