linux下实施MQTT

hellxoul — Thu, 12 Dec 2013 13:54:00 GMT

mosquito 是一个MQTT 服务器。MQTT协议可用来做Android消息推送，服务器端采用mosquito+PhpMQTTClient(�q�个php用来做实�?

自己不会java�Q�不会Android开发，推送的开发部分是同事做的。��用情况表明，单台服务器能满��几万的稳定的�q�接敎ͼ�扩展��h��也不难，加机器即可�?br />

下蝲最新版的mosquitto
cd /usr/local/src
wget http://mosquitto.org/files/source/mosquitto-1.1.2.tar.gz
tar zxvf mosquitto-1.1.2.tar.gz
cd mosquitto-1.1.2
如果当前openssl版本低于1.0�Q�修改config.mk中的WITH_TLS_PSK:=no
make
make install prefix=/usr/local/mosquitto
为方便管理，��d��下面�?etc/profile
export PATH=”$PATH:/usr/local/mosquitto/bin”
export PATH=”$PATH:/usr/local/mosquitto/sbin”

source /etc/profile
[root@mysql230 mosquitto]# mosquitto #tab补全�Q�四个命�?br />mosquitto mosquitto_passwd mosquitto_pub mosquitto_sub

mosquitto服务器主�E�序�Q�实��C��MQTT协议
mosquitto_pub mosquitto发布消息的命令行�E�序
mosquitto_sub mosquitto订阅消息的命令行�E�序
默认的配�|�文件在 /etc/mosquitto/�?/p>

��?usr/local/mosquitto/lib/��d��?etc/ld.so.conf
执行 ldconfig -f /etc/ld.so.conf 可能需要等待数�U?/p>

启动
mosquitto �Q?d后台启动�Q?br />可能提示没有用户 mosquitto�Q�useradd mosquitto
�l�端��试
客户�?mosquitto_sub -h 192.168.1.230 -t test
另�v命��o行mosquitto_pub -t test -m ’123′
PhpMQTTClient安装
去https://github.com/tokudu/PhpMQTTClient 下蝲�E�序包，攄��到服务器目录
可能需要结合实际情况，要修改的地方
index.php
$result = $conn->connect(SAM_MQTT, array(‘SAM_HOST’ => ’127.0.0.1′, ‘SAM_PORT’ => 1883));

SAM/MQTT/sam_mqtt.php
$this->port = 1883;

启动mosquitto在前台运行，以方便获取连接客��L(f��ng)��的信�?br />mosquitto
在服务器另外一�l�端上启动订阅消息的�q�程�Q�订阅所有tokudu开头topic
mosquitto_sub –t tokudu /+
注意�Q�此处之所以要使用tokudu�Q�可以看index.php�?82�?var target = ‘tokudu/’ + $(‘#messageTarget’).val();
在mosquitto的终端获得mosquitto_sub客户端的id
1350006978: New client connected from 127.0.0.1 as mosqsub/8491-localhost..

讉K��http://host:port/ �Q�push notification target字段填写8491-localhost�Q�push notification text填写需要推送的��试消息
在mosquitto的终端查看是否收��C��推送的消息�Q�如果收刎ͼ�说明phpmqttclient已经安装配置成功

解决mosquitto占有cpu�q�程�q�高的问�?https://answers.launchpad.net/mosquitto/+question/189612
ulimit -u 4096
ulimit -n 4096

附：
配置文�g
# =================================================================
# General configuration
# =================================================================

# 客户端心跳的间隔旉��
#retry_interval 20

# �pȝ��状态的��h��旉��
#sys_interval 10

# �pȝ��资源的回收时��_��0表示��快处理
#store_clean_interval 10

# 服务�q�程的PID
#pid_file /var/run/mosquitto.pid

# 服务�q�程的系�l�用�?br />#user mosquitto

# 客户端心��x��息的最大�ƈ发数
#max_inflight_messages 10

# 客户端心��x��息缓存队�?br />#max_queued_messages 100

# 用于讄��客户端长�q�接的过期时��_��默认�怸��q�期
#persistent_client_expiration

# =================================================================
# Default listener
# =================================================================

# 服务�l�定的IP地址
#bind_address

# 服务�l�定的端口号
#port 1883

# 允许的最大连接数�Q?1表示没有限制
#max_connections -1

# cafile�Q�CA证书文�g
# capath�Q�CA证书目录
# certfile�Q�PEM证书文�g
# keyfile�Q�PEM密钥文�g
#cafile
#capath
#certfile
#keyfile

# 必须提供证书以保证数据安全�?br />#require_certificate false

# 若require_certificate��gؓtrue�Q�use_identity_as_username也必��Mؓtrue
#use_identity_as_username false

# 启用PSK�Q�Pre-shared-key�Q�支�?br />#psk_hint

# SSL/TSL加密��法�Q�可以��?#8220;openssl ciphers”命��o获取
# as the output of that command.
#ciphers

# =================================================================
# Persistence
# =================================================================

# 消息自动保存的间隔时�?br />#autosave_interval 1800

# 消息自动保存功能的开�?br />#autosave_on_changes false

# 持久化功能的开�?br />persistence true

# 持久化DB文�g
#persistence_file mosquitto.db

# 持久化DB文�g目录
#persistence_location /var/lib/mosquitto/

# =================================================================
# Logging
# =================================================================

# 4�U�日志模式：stdout、stderr、syslog、topic
# none 则表�C�Z��记日志，此配�|�可以提升些许性能
log_dest none

# 选择日志的��别（可设�|�多��）
#log_type error
#log_type warning
#log_type notice
#log_type information

# 是否记录客户端连接信�?br />#connection_messages true

# 是否记录日志旉��
#log_timestamp true

# =================================================================
# Security
# =================================================================

# 客户端ID的前�~�限制�Q�可用于保证安全�?br />#clientid_prefixes

# 允许匿名用户
#allow_anonymous true

# 用户/密码文�g�Q�默认格式：username:password
#password_file

# PSK格式密码文�g�Q�默认格式：identity:key
#psk_file

# pattern write sensor/%u/data
# ACL权限配置�Q�常用语法如下：
# 用户限制�Q�user
# 话题限制�Q�topic [read|write]
# 正则限制�Q�pattern write sensor/%u/data
#acl_file

# =================================================================
# Bridges
# =================================================================

# 允许服务之间使用“桥接”模式�Q�可用于分布式部�|Ԍ��
#connection
#address [:]
#topic [[[out | in | both] qos-level] local-prefix remote-prefix]

# 讄��桥接的客��L(f��ng)��ID
#clientid

# 桥接断开�Ӟ��是否清除�q�程服务器中的消�?br />#cleansession false

# 是否发布桥接的状态信�?br />#notifications true

# 讄��桥接模式下，消息��会发布到的话题地址
# $SYS/broker/connection//state
#notification_topic

# 讄��桥接的keepalive数�?br />#keepalive_interval 60

# 桥接模式�Q�目前有三种�Q�automatic、lazy、once
#start_type automatic

# 桥接模式automatic的超时时�?br />#restart_timeout 30

# 桥接模式lazy的超时时�?br />#idle_timeout 60

# 桥接客户端的用户�?br />#username

# 桥接客户端的密码
#password

# bridge_cafile�Q�桥接客��L(f��ng)��的CA证书文�g
# bridge_capath�Q�桥接客��L(f��ng)��的CA证书目录
# bridge_certfile�Q�桥接客��L(f��ng)��的PEM证书文�g
# bridge_keyfile�Q�桥接客��L(f��ng)��的PEM密钥文�g
#bridge_cafile
#bridge_capath
#bridge_certfile
#bridge_keyfile

# 自己的配�|�可以放��C��下目录中
include_dir /etc/mosquitto/conf.d

本文�� “Cooke Chen 我爱��贝” 博客�Q�请务必保留此出�?a >http://cswei.blog.51cto.com/3443978/1225617

hellxoul 2013-12-12 21:54 发表评论

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linux下实施MQTT