1.消息队列emqtt

Posted 2021-02-18 forlive

2.x版本之前都叫emqtt，3.x之后版本都叫emqx

下载地址：https://www.emqx.io/cn/downloads#broker

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安装部署

　　1.下载软件包后上传到服务器，解压

unzip emqttd-centos7-v2.0.zip

　　2.以调试模式启动，检查服务是否正常

[root@localhost emqttd]# cd emqttd && ./bin/emqttd console
Exec: /root/emqttd/erts-9.0/bin/erlexec -boot /root/emqttd/releases/2.3.7/emqttd -mode embedded -boot_var ERTS_LIB_DIR /root/emqttd/erts-9.0/../lib -mnesia dir "/root/emqttd/data/mnesia/emq@127.0.0.1" -config /root/emqttd/data/configs/app.2020.05.23.23.38.19.config -args_file /root/emqttd/data/configs/vm.2020.05.23.23.38.19.args -vm_args /root/emqttd/data/configs/vm.2020.05.23.23.38.19.args -- console
Root: /root/emqttd
/root/emqttd
Erlang/OTP 20 [erts-9.0] [source] [64-bit] [smp:2:2] [ds:2:2:10] [async-threads:32] [hipe] [kernel-poll:true]

starting emqttd on node ‘emq@127.0.0.1‘
emqttd ctl is starting...[ok]
emqttd hook is starting...[ok]
emqttd router is starting...[ok]
emqttd pubsub is starting...[ok]
emqttd stats is starting...[ok]
emqttd metrics is starting...[ok]
emqttd pooler is starting...[ok]
emqttd trace is starting...[ok]
emqttd client manager is starting...[ok]
emqttd session manager is starting...[ok]
emqttd session supervisor is starting...[ok]
emqttd wsclient supervisor is starting...[ok]
emqttd broker is starting...[ok]
emqttd alarm is starting...[ok]
emqttd mod supervisor is starting...[ok]
emqttd bridge supervisor is starting...[ok]
emqttd access control is starting...[ok]
emqttd system monitor is starting...[ok]
emqttd 2.3.7 is running now
Eshell V9.0  (abort with ^G)
(emq@127.0.0.1)1> Load emq_mod_presence module successfully.
dashboard:http listen on 0.0.0.0:18083 with 4 acceptors.
mqtt:tcp listen on 127.0.0.1:11883 with 4 acceptors.
mqtt:tcp listen on 0.0.0.0:1883 with 16 acceptors.
mqtt:ws listen on 0.0.0.0:8083 with 4 acceptors.
mqtt:ssl listen on 0.0.0.0:8883 with 16 acceptors.
mqtt:wss listen on 0.0.0.0:8084 with 4 acceptors.
mqtt:api listen on 0.0.0.0:8080 with 4 acceptors.

　　3.查看服务启动状态

[root@localhost ~]# ./emqttd/bin/emqttd_ctl status
Node ‘emq@127.0.0.1‘ is started
emqttd 2.3.7 is running　

　　4.如果服务启动正常，更改为后台启动，启动错误日志将输出到log目录下

./bin/emqttd start

　　5.EMQ 消息服务器提供了状态监控 URL

http://localhost:8080/status

　　6.控制台 URL: http://localhost:18083/ ，默认登录用户名: admin, 密码: public。

　　7.停止服务器:

./bin/emqttd stop

　　

调试配置

1.EMQ 2.0 消息服务器默认占用的 TCP 端口包括:

1883	MQTT 协议端口
8883	MQTT/SSL 端口
8083	MQTT/WebSocket 端口
8080	HTTP API 端口
18083	Dashboard 管理控制台端口

2.可通过 etc/emq.conf 配置文件的 ‘listener’ 段落设置（18083是由emq_dashboard插件控制，配置文件在etc/plugins/emq_dashboard.conf）

## TCP Listener: 1883, 127.0.0.1:1883, ::1:1883
listener.tcp.external = 0.0.0.0:1883

## SSL Listener: 8883, 127.0.0.1:8883, ::1:8883
listener.ssl.external = 8883

## External MQTT/WebSocket Listener
listener.ws.external = 8083

## HTTP Management API Listener
listener.api.mgmt = 127.0.0.1:8080

3.EMQ 消息服务器主要配置文件:

etc/emq.conf	EMQ 消息服务器参数设置
etc/plugins/*.conf	EMQ 插件配置文件

4.