rabbitmd

一、前期准备 （1）条件:准备3台linux系统，确保能连到download.yunwei.edu （2）编写yum源下载脚本：vim yum-repo.shwget -O /etc/yum.repos.d/Centos7-Base-yunwei.repo    download.yunwei.edu/shell/Centos7-Base-yunwei.repowget -O /etc/yum.repos.d/epel-yunwei.repo   download.yunwei.edu/shell/epel-yunwei.repowget -O /etc/yum.repos.d/rdo-release-yunwei.repo  download.yunwei.edu/shell/rdo-release-yunwei.repowget -O /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud  download.yunwei.edu/shell/RPM-GPG-KEY-CentOS-SIG-Cloudwget -O /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7  download.yunwei.edu/shell/RPM-GPG-KEY-EPEL-7 （3）将系统自带网络源移走，执行yum-repo.shsh yum-repo.sh （4）DNS能够解析此三台主机 二、安装过程： （1）所有node安装rabbtimq和erlang软件包：yum install -y erlang rabbitmq-server.noarchsystemctl enable rabbitmq-server.servicesystemctl start rabbitmq-server.servicesystemctl status rabbitmq-server.service 查看监听端口：netstat -lantp | grep 5672配置文件：vim /etc/rabbitmq/rabbitmq.config （2）node1：修改guest密码为admin（默认用户为：guest 密码为：guest)rabbitmqctl change_password guest admin （3）node1：添加一个openstack的用户，并设密码为admin。并设置权限和成为管理员node1：rabbitmqctl add_user openstack adminrabbitmqctl set_permissions openstack “.*” “.*” “.*”rabbitmqctl set_user_tags openstack administrator （4）node1：编辑rabbittmq变量文件vim /etc/rabbitmq/rabbitmq-env.confRABBITMQ_NODE_PORT=5672ulimit -S -n 4096RABBITMQ_SERVER_ERL_ARGS=”+K true +A30 +P 1048576 -kernel inet_default_connect_options [{nodelay,true},{raw,6,18,<<5000:64/native>>}] -kernel inet_default_listen_options [{raw,6,18,<<5000:64/native>>}]”RABBITMQ_NODE_IP_ADDRESS=172.16.254.60 （5）node1：将rabbittmq变量文件拷贝到其他两节点，之后并修改相应节点的ipscp /etc/rabbitmq/rabbitmq-env.conf con2:/etc/rabbitmq/scp /etc/rabbitmq/rabbitmq-env.conf con3:/etc/rabbitmq/ 查看rabbitmq插件/usr/lib/rabbitmq/bin/rabbitmq-plugins list （6）所有node 开启rabbitmq的web管理页面/usr/lib/rabbitmq/bin/rabbitmq-plugins enable rabbitmq_management mochiweb webmachine rabbitmq_web_dispatch amqp_client rabbitmq_management_agent或者：rabbitmq-plugins enable rabbitmq_management systemctl restart rabbitmq-server.servicesystemctl status rabbitmq-server.service （7）node1发送erlang.cookie到其他节点配置集群rabbitmqctl statusscp /var/lib/rabbitmq/.erlang.cookie con2:/var/lib/rabbitmq/.erlang.cookiescp /var/lib/rabbitmq/.erlang.cookie con3:/var/lib/rabbitmq/.erlang.cookie （8）node2和node3停止应用，并以ram的方式加入node1节点，之后重启应用systemctl restart rabbitmq-server.servicerabbitmqctl stop_apprabbitmqctl join_cluster –ram rabbit@con1rabbitmqctl start_app （9）node1检查集群状态[root@con1 conf]# rabbitmqctl cluster_statusCluster status of node rabbit@con1 …[{nodes,[{disc,[rabbit@con1]},{ram,[rabbit@con3,rabbit@con2]}]},{running_nodes,[rabbit@con3,rabbit@con2,rabbit@con1]},{cluster_name,<<“rabbit@con1”>>},{partitions,[]},{alarms,[{rabbit@con3,[]},{rabbit@con2,[]},{rabbit@con1,[]}]}] （10）登陆验证：http://172.16.254.60:15672/             guest/admin    其他命令：（1）添加管理员：rabbitmqctl add_user mqadmin mqadminrabbitmqctl set_user_tags mqadmin administratorrabbitmqctl set_permissions -p / mqadmin “.*” “.*” “.*” （2）更改节点类型（内存型或磁盘型）rabbitmqctl stop_apprabbitmqctl change_cluster_node_type disc 或 rabbitmqctl change_cluster_node_type ramrabbitmqctl start_app （3）从集群移除节点（或者重置节点）rabbitmqctl stop_apprabbitmqctl resetrabbitmqctl start_apprabbitmqctl cluster_status （4）从某个节点移除集群中其他节点rabbitmqctl forget_cluster_node rabbit@node3rabbitmqctl resetrabbitmqctl start_apprabbitmqctl cluster_status 1. 保证集群中至少有一个磁盘类型的节点以防数据丢失，在更改节点类型时尤其要注意。2. 若整个集群被停掉了，应保证最后一个 down 掉的节点被最先启动，若不能则要使用 forget_cluster_node 命令将其移出集群3. 若集群中节点几乎同时以不可控的方式 down 了此时在其中一个节点使用 force_boot 命令重启节点