191 lines
2.9 KiB
Markdown
191 lines
2.9 KiB
Markdown
# eMQTTD [](https://travis-ci.org/emqtt/emqttd)
|
|
|
|
eMQTTD is a clusterable, massively scalable, fault-tolerant and extensible MQTT V3.1/V3.1.1 broker written in Erlang/OTP.
|
|
|
|
eMQTTD support MQTT V3.1/V3.1.1 Protocol Specification.
|
|
|
|
eMQTTD requires Erlang R17+.
|
|
|
|
|
|
## Benchmark
|
|
|
|
Benchmark 0.5.4-alpha on a ubuntu/14.04 server with 8 cores, 32G memory from QingCloud:
|
|
|
|
200K Connections, 200K Topics, 20K Messages/sec, 20Mbps In/Out with 7G Memory, 40%CPU/core
|
|
|
|
|
|
## NOTICE
|
|
|
|
eMQTTD still cannot handle massive retained messages.
|
|
|
|
|
|
## Featues
|
|
|
|
Full MQTT V3.1.1 Support
|
|
|
|
Both V3.1.1 and V3.1 protocol support
|
|
|
|
QoS0, QoS1, QoS2 Publish and Subscribe
|
|
|
|
Session Management and Offline Messages
|
|
|
|
Retained Messages
|
|
|
|
TCP/SSL connection support
|
|
|
|
[$SYS/borkers/#](https://github.com/emqtt/emqtt/wiki/$SYS-Topics-of-Broker) support
|
|
|
|
Passed eclipse paho interoperability tests
|
|
|
|
|
|
## Clusterable, Massively Scalable
|
|
|
|
Massive Connections Clients Support
|
|
|
|
Cluster brokers on servers or cloud hosts
|
|
|
|
Bridge brokers locally or remotelly
|
|
|
|
|
|
## Startup in Five Minutes
|
|
|
|
```
|
|
$ git clone git://github.com/emqtt/emqttd.git
|
|
|
|
$ cd emqttd
|
|
|
|
$ make && make dist
|
|
|
|
$ cd rel/emqttd
|
|
|
|
$ ./bin/emqttd console
|
|
```
|
|
|
|
## Deploy and Start
|
|
|
|
### start
|
|
|
|
```
|
|
cp -R rel/emqttd $INSTALL_DIR
|
|
|
|
cd $INSTALL_DIR/emqttd
|
|
|
|
./bin/emqttd start
|
|
|
|
```
|
|
|
|
### stop
|
|
|
|
```
|
|
./bin/emqttd stop
|
|
|
|
```
|
|
|
|
## Configuration
|
|
|
|
### etc/app.config
|
|
|
|
```
|
|
{emqttd, [
|
|
{auth, {anonymous, []}}, %internal, anonymous
|
|
{listen, [
|
|
{mqtt, 1883, [
|
|
{acceptors, 4},
|
|
{max_clients, 1024}
|
|
]},
|
|
{mqtts, 8883, [
|
|
{acceptors, 4},
|
|
{max_clients, 1024},
|
|
%{cacertfile, "etc/ssl/cacert.pem"},
|
|
{ssl, [{certfile, "etc/ssl.crt"},
|
|
{keyfile, "etc/ssl.key"}]}
|
|
]},
|
|
{http, 8083, [
|
|
{acceptors, 1},
|
|
{max_clients, 512}
|
|
]}
|
|
]}
|
|
]}
|
|
|
|
```
|
|
|
|
### etc/vm.args
|
|
|
|
```
|
|
|
|
-name emqttd@127.0.0.1
|
|
|
|
-setcookie emqtt
|
|
|
|
```
|
|
|
|
When nodes clustered, vm.args should be configured as below:
|
|
|
|
```
|
|
-name emqttd@host1
|
|
```
|
|
|
|
## Cluster
|
|
|
|
Suppose we cluster two nodes on 'host1', 'host2', Steps:
|
|
|
|
on 'host1':
|
|
|
|
```
|
|
./bin/emqttd start
|
|
```
|
|
|
|
on 'host2':
|
|
|
|
```
|
|
./bin/emqttd start
|
|
|
|
./bin/emqttd_ctl cluster emqttd@host1
|
|
```
|
|
|
|
Run './bin/emqttd_ctl cluster' on 'host1' or 'host2' to check cluster nodes.
|
|
|
|
## HTTP API
|
|
|
|
eMQTTD support http to publish message.
|
|
|
|
Example:
|
|
|
|
```
|
|
curl -v --basic -u user:passwd -d "qos=1&retain=0&topic=/a/b/c&message=hello from http..." -k http://localhost:8083/mqtt/publish
|
|
```
|
|
|
|
### URL
|
|
|
|
```
|
|
HTTP POST http://host:8083/mqtt/publish
|
|
```
|
|
|
|
### Parameters
|
|
|
|
Name | Description
|
|
--------|---------------
|
|
qos | QoS(0, 1, 2)
|
|
retain | Retain(0, 1)
|
|
topic | Topic
|
|
message | Message
|
|
|
|
## Design
|
|
|
|
[Design Wiki](https://github.com/emqtt/emqttd/wiki)
|
|
|
|
## License
|
|
|
|
The MIT License (MIT)
|
|
|
|
## Author
|
|
|
|
feng at emqtt.io
|
|
|
|
## Thanks
|
|
|
|
@hejin1026 (260495915 at qq.com)
|
|
|
|
@desoulter (assoulter123 at gmail.com)
|
|
|