官方教程 :头痛的是nginx 和 mqtt布局有所冲突,后台不能使用需要调整,当然是用 nginx自家的布局没问题,但是要收费
1.由于emqttd是用Erlang语言编写的,所以,在Linux下安装时,需要先安装Erlang。
安装依赖库
sudo yum -y install make gcc gcc-c++ kernel-devel m4 ncurses-devel openssl-devel
获取源码包
wget http://www.erlang.org/download/otp_src_R13B04.tar.gz
解压、编译、安装
tar xfvz otp_src_R13B04.tar.gz cd otp_src_R13B04/
/**************************此时开始到下面对接处****************************/
编译此时会出大问题,会提示没有java什么的,需要进行下面操作,
这里主要注意 APPLICATIONS DISABLED 部分的提示,其他两部分是不影响编译的。
jinterface : No Java compiler found 什么?没有java编译器?其实这里我们可以选择用gcc等其他方式来编译erlang。
如果你安装了gcc,这里就用不上java编译了,因此可以在configure时增加 –disable-javac 避免第二个错误;
odbc : ODBC library – link check failed 表示你未安装unixODBC库
好吧,想办法安装下unixODBC:
安装 ODBC
下载unixODBC源码包(http://www.unixodbc.org/unixODBC-2.2.1.tar.gz)放到某处比如/usr/local下,然后运行下述命令:
tar zxvf unixODBC-2.2.1.tar.gz cd unixODBC-2.2.1 ./configure --prefix=/usr/local/unixODBC-2.2.1 --includedir=/usr/include --libdir=/usr/lib -bindir=/usr/bin --sysconfdir=/etc --enable-gui=no make make install
紧接着会出现 checking for X...
configure: error: Can't find X includes
解决方法:
./configure --x-includes=/usr/include/X11
后又出现
checking for X... configure: error: Can't find X libraries. Please check your installation and add the correct paths!
./configure --x-includes=/usr/include/X11 --x-libraries=/usr/lib/X11
/**************************回到最原来的地方****************************/
之后回过头cd到之前的otp_src_R13B04目录
执行
./configure --prefix=/home/erlang --without-javac make make install
上一步会出现(正常状况)
********************************************************************* ********************** APPLICATIONS DISABLED ********************** ********************************************************************* jinterface : Java compiler disabled by user ********************************************************************* ********************************************************************* ********************** APPLICATIONS INFORMATION ******************* ********************************************************************* wx : wxWidgets not found, wx will NOT be usable ********************************************************************* ********************************************************************* ********************** DOCUMENTATION INFORMATION ****************** ********************************************************************* documentation : xsltproc is missing. fop is missing. The documentation can not be built. *********************************************************************
虽然会等待一会,但是最终还是成功了,至少我的是成功了,哈哈
做个ln吧,你要是不想要就不用执行这个命令了.
ln -s /usr/local/erlang/bin/erl /usr/local/bin/erl
设置环境变量以便下一步安装时使用(这个只是临时性的设置)
export PATH=$PATH:/usr/local/erlang/bin/
或者永久设置
编辑/etc/profile文件,然后在最下边加上
gedit /etc/profile
export PATH=$PATH:/usr/local/erlang/bin/
部署EMQ
下载和安装
到这里获取Linux通用安装包:http://emqtt.com/docs/v2/install.html#linux
unzip emqttd-centos7-v2.0.zip
控制台调试模式启动,检查 EMQ 是否可正常启动:
cd emqttd && ./bin/emqttd console
EMQ 消息服务器如启动正常,控制台输出:
alarm_handler: {set,{system_memory_high_watermark,[]}} 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 2.3.10 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.
CTRL+c关闭控制台。守护进程模式启动:
./bin/emqttd start
状态查询先进入目录
cd /home/emqttd/bin
emqttd_ctl status
http://localhost:8080/status
停止服务
emqttd stop