目录
最近有个项目有用到消息队列，根据实际情况选择了rabbitmq，具体原因的话，有这么几点吧。
rabbitmq性能来讲，比较均衡，或者说比较全面，之前的话，也一直用的是rabbitmq，数据量的话，也没有特别的大，rabbitmq也支持高并发，毕竟erlang语言就具备高并发，另外就是对于消息的持久化了，后期也可以对具体的队列做镜像处理，整体来说，rabbitmq比较符合需求。
准备工作
机器准备，集群部署，所以需要三台：
| 主机名 |
ip |
| mq1 |
192.168.10.2 |
| mq2 |
192.168.10.3 |
| mq3 |
192.168.10.4 |
在确认了版本之后，需要去看对应的erlang版本，可参考（https://rabbitmq.com/which-erlang.html）
对应版本的包下载：
#OTP 22.3https://github.com/erlang/otp/releases/download/OTP-22.3.4.26/otp_src_22.3.4.26.tar.gz#rabbitmq rpm包https://packagecloud.io/rabbitmq/rabbitmq-server/packages/el/7/rabbitmq-server-3.8.4-1.el7.noarch.rpm#wxWidgetshttps://github.com/wxWidgets/wxWidgets/releases/tag/v3.1.5
集群部署
在部署OTP之前，需要先安装一些前置包，不然编译会有问题
#都是教训，三台都执行下yum install mesa-libGL-devel mesa-libGLU-devel freeglut-devel gcc glibc-devel make ncurses-devel openssl-devel autoconf xmlto libtool automake gcc-c++ unixODBC unixODBC-devel gtk2-devel binutils-devel fop.noarch bzip2 -y
yum安装结束后，还需要安装 wxWidgets
不然编译的时候，会有这个报错
wxWidgets not found, wx will NOT be usable编译wxWidgets
#解压tar -xjf wxWidgets-3.1.5.tar.bz2cd /wxWidgets-3.15#编译./configure --with-regex=builtin --with-gtk --enable-unicode --disable-shared --prefix=/usr/local/wxWidgetsmake && make install#设置动态目录cd /etc/ld.so.conf.d/touch wxWidgets.confcat >>wxWidgets.conf<<EOF/usr/local/libEOF#重新加载动态库ldconfig#java环境也需要提前配置好，不然也会报错，因为我们是统一部署的jdk，这里就不再介绍了。#到这里就可以开始编译OTP了#OTP编译tar -xvf otp_src_22.3.4.26.tar.gz -C otpcd ./otp./otp_build autoconf./configure --prefix=/data460/erlang_22.3make && make install
#修改环境变量，验证是否成功vim /etc/profile#新增如下PATH=$PATH:/data460/erlang_22.3/bin/source /etc/pfofile
查看erl版本
erl编译还会有个报错，可以忽略
可忽略报错
Can not link the wx driver, wx will NOT be useable部署好之后，可以部署rabbitmq了
三台分别执行
rpm -ivh --nodeps rabbitmq-server-3.8.4-1.el7.noarch.rpm其中一台启动rabbitmq
systemctl start rabbitmq-server然后同步这台erlang 文件到两外两台
cat /var/lib/rabbitmq/.erlang.cookie注意.erlang.cookie的文件权限是 400
然后另外两台分别执行
systemctl start rabbitmq-server.servicesystemctl status rabbitmq-server.servicerabbitmqctl stop_apprabbitmqctl join_cluster rabbit@mq-01#内存节点#rabbitmqctl join_cluster --ram rabbit@mq-01rabbitmqctl start_apprabbitmqctl status
查看集群状态
rabbitmqctl cluster_status配置集群镜像模式
rabbitmqctl set_policy ha-all "^" '{"ha-mode":"exactly", "ha-params":2, "ha-sync-mode":"automatic","ha-sync-batch-size":300000}'#开启web页面rabbitmq-plugins enable rabbitmq_management#新建用户rabbitmqctl add_user admin fadsfj4as$rabbitmqctl set_user_tags admin administratorrabbitmqctl set_permissions -p / admin “.*” “.*” “.*”
监控配置
采用rabbitmq-exporter
地址：https://github.com/kbudde/rabbitmq_exporter/
下载包：
https://github.com/kbudde/rabbitmq_exporter/releases/download/v1.0.0-RC8/rabbitmq_exporter-1.0.0-RC8.linux-amd64.tar.gz
解压，配置文件，systemctl启动配置
tar -xvf rabbitmq_exporter-1.0.0-RC8.linux-amd64.tar.gz下为涉及到的配置文件及目录
cat rabbitmq.conf{"rabbit_url": "http://192.168.10.2:15672","rabbit_user": "admin","rabbit_pass": "fadsfj4as$","publish_port": "9419","publish_addr": "","output_format": "TTY","ca_file": "ca.pem","cert_file": "client-cert.pem","key_file": "client-key.pem","insecure_skip_verify": false,"exlude_metrics": [],"include_queues": ".*","skip_queues": "^$","skip_vhost": "^$","include_vhost": ".*","rabbit_capabilities": "no_sort,bert","enabled_exporters": ["exchange","node","overview","queue"],"timeout": 30,"max_queues": 0}cat /usr/lib/systemd/system/rabbitmq_exporter.service[Unit]Description=rabbitmq_exporterAfter=network.target[Service]Type=simpleRestart=alwaysRestartSec=10WorkingDirectory=/data/rabbitmq_exporterExecStart=/data/rabbitmq_exporter/rabbitmq_exporter -config-file rabbitmq.conf[Install]WantedBy=multi-user.target#启动systemctl start rabbitmq_exporter.service && systemctl status rabbitmq_exporter.service
#查看监控指标
192.168.10.2:9419/metricsprometheus配置
#新增- job_name: rabbitstatic_configs:- targets: ['192.168.10.7:9419'
重启proemtheus
grafana展示
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