rabbitmq
作者:互联网
RabbitMQ集群实操手册
2.实战案例——部署RabbitMQ集群
2.1 案例目标
(1)了解RabbitMQ服务的安装与配置。
(2)了解RabbitMQ集群的配置架构。
(3)了解RabbitMQ集群的使用。
2.2 案例分析
1.规划节点
数据库主从案例的节点规划,见表2-1-1。
表2-1-1 节点规划
IP |
主机名 |
节点 |
172.30.11.12 |
rabbitmq1 |
RabbitMQ 磁盘节点 |
172.30.11.13 |
rabbitmq2 |
RabbitMQ 内存节点 |
172.30.11.14 |
rabbitmq3 |
RabbitMQ 内存节点 |
2.基础准备
使用OpenStack平台创建三台云主机进行实验,云主机镜像使用提供的CentOS_7.5_x86_64_XD.qcow2镜像,flavor使用1核/2G内存/20G硬盘,自行配置网络并使用远程连接工具连接云主机。节点规划表中的IP地址为作者的IP地址,在进行实操案例的时候,按照自己的环境规划网络与IP地址。
2.3 案例实施
1.基础环境安装
(1)修改主机名
使用远程连接工具CRT连接到172.30.11.12、172.30.11.13、172.30.11.14这三台虚拟机,并对这三台虚拟机进行修改主机名的操作,172.30.11.12主机名修改为rabbitmq1;172.30.11.13主机名修改为rabbitmq2;172.30.11.14主机名修改为rabbitmq3。命令如下:
rabbitmq1节点:
[root@localhost ~]# hostnamectl set-hostname rabbitmq1
[root@localhost ~]# logout
[root@rabbitmq1 ~]# hostnamectl
Static hostname: rabbitmq1
Icon name: computer-vm
Chassis: vm
Machine ID: 622ba110a69e24eda2dca57e4d306baa
Boot ID: 859720a14f8f4b5e836f5a0fae7097e0
Virtualization: kvm
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-862.2.3.el7.x86_64
Architecture: x86-64
rabbitmq2节点:
[root@localhost ~]# hostnamectl set-hostname rabbitmq2
[root@localhost ~]# logout
[root@rabbitmq2 ~]# hostnamectl
Static hostname: rabbitmq2
Icon name: computer-vm
Chassis: vm
Machine ID: 622ba110a69e24eda2dca57e4d306baa
Boot ID: 5e41c48c85704016ad0bd940500cc255
Virtualization: kvm
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-862.2.3.el7.x86_64
Architecture: x86-64
rabbitmq3节点:
[root@localhost ~]# hostnamectl set-hostname rabbitmq2
[root@localhost ~]# logout
[root@rabbitmq3 ~]# hostnamectl
Static hostname: rabbitmq3
Icon name: computer-vm
Chassis: vm
Machine ID: 622ba110a69e24eda2dca57e4d306baa
Boot ID: eef9314b97ac4331bfa423f1d3de67bf
Virtualization: kvm
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-862.2.3.el7.x86_64
Architecture: x86-64
(2)关闭防火墙及SELinux服务
三个节点关闭防火墙firewalld及SELinux服务,命令如下:
# setenforce 0
# systemctl stop firewalld
(3)配置hosts文件
三个节点配置/etc/hosts文件,修改为如下:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
172.30.11.12 rabbitmq1
172.30.11.13 rabbitmq2
172.30.11.14 rabbitmq3
(4)配置YUM源
三个节点均使用提供的rabbitmq-repo.tar.gz的压缩包,上传至虚拟机的/root目录下,解压并放在/opt目录下,进入/etc/yum.repos.d目录下,将原来的repo文件移除,新建local.repo文件并编辑内容,具体操作命令如下:
# tar -zxvf rabbitmq-repo.tar.gz -C /opt/
# cd /etc/yum.repos.d/
# mv * /media/
# vi local.repo
# cat local.repo
[rabbitmq]
name=rabbitmq
baseurl=file:///opt/rabbitmq-repo
gpgcheck=0
enabled=1
查看配置的YUM源是否可用,命令如下:
# yum repolist
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
repo id repo name status
rabbitmq rabbitmq 26
repolist: 26
查看到repolist数量,即YUM源配置成功。
(5)安装RabbitMQ服务并启动
配置完毕后,三个节点安装RabbitMQ服务,命令如下:
# yum install -y rabbitmq-server
rabbitmq1节点启动RabbitMQ服务并查看服务状态,命令如下:
# systemctl start rabbitmq-server
#[root@rabbitmq1 ~]# systemctl status rabbitmq-server
● rabbitmq-server.service - RabbitMQ broker
Loaded: loaded (/usr/lib/systemd/system/rabbitmq-server.service; disabled; vendor preset: disabled)
Active: active (running) since Tue 2020-10-20 05:48:17 UTC; 1h 7min ago
Process: 13641 ExecStop=/usr/lib/rabbitmq/bin/rabbitmqctl stop (code=exited, status=0/SUCCESS)
Main PID: 13685 (beam)
CGroup: /system.slice/rabbitmq-server.service
├─13685 /usr/lib64/erlang/erts-5.10.4/bin/beam -W w -K true -A30 -P 1048576 -- -root /usr/lib64/erlang -progname erl -- -home /var/lib/rabbitmq -- -pa /usr/lib/rabbitmq/lib/ra...
├─13757 inet_gethost 4
└─13758 inet_gethost 4
Oct 20 05:48:14 rabbitmq1 systemd[1]: Starting RabbitMQ broker...
(6)配置界面访问
RabbitMQ提供了一个非常友好的图形化监控页面插件(rabbitmq_management),让我们可以一目了然看见Rabbit的状态或集群状态。启用图形化页面插件的具体命令如下:
[root@rabbitmq1 ~]# rabbitmq-plugins enable rabbitmq_management
The following plugins have been enabled:
mochiweb
webmachine
rabbitmq_web_dispatch
amqp_client
rabbitmq_management_agent
rabbitmq_management
Plugin configuration has changed. Restart RabbitMQ for changes to take effect.
启用图形化界面后,需要重启RabbitMQ服务,命令如下:
[root@rabbitmq1 ~]# service rabbitmq-server restart
Redirecting to /bin/systemctl restart rabbitmq-server.service
(7)使用界面查看
在开启了图形化监控页面之后,能通过网页访问,访问端口为15672,使用命令查看端口启动情况,命令如下:
[root@rabbitmq1 ~]# netstat -ntpl
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:25672 0.0.0.0:* LISTEN 13685/beam
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 500/rpcbind
tcp 0 0 0.0.0.0:4369 0.0.0.0:* LISTEN 11320/epmd
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1162/sshd
tcp 0 0 0.0.0.0:15672 0.0.0.0:* LISTEN 13685/beam
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 932/master
tcp6 0 0 :::5672 :::* LISTEN 13685/beam
tcp6 0 0 :::111 :::* LISTEN 500/rpcbind
tcp6 0 0 :::4369 :::* LISTEN 11320/epmd
tcp6 0 0 :::22 :::* LISTEN 1162/sshd
tcp6 0 0 ::1:25 :::* LISTEN 932/master
可以看到15672端口已开放,打开浏览器,输入rabbitmq1节点的ip加端口15672(http://172.30.11.12:15672)访问RabbitMQ监控界面,使用用户名:密码guest:guset登录,登录后如下图所示:
2.配置RabbitMQ集群服务
(1)配置节点间的通信
Rabbitmq的集群是依附于erlang集群来工作的,所以必须先构建起一个erlang集群。erlang集群中各节点是由magic cookie来实现的,每个节点上要保持相同的.erlang.cookie文件,这个cookie存放在/var/lib/rabbitmq/.erlang.cookie中,文件是400的权限。必须保证各节点cookie一致,不然节点之间就无法通信。
查看rabbitmq1节点的.erlang.cookie文件,并将该文件复制到rabbitmq2和rabbitmq3节点的/var/lib/rabbitmq/目录下,命令如下:
[root@rabbitmq1 ~]# cat /var/lib/rabbitmq/.erlang.cookie
EZYGPUJOTSESXPAUFMWO
[root@rabbitmq1 ~]# scp /var/lib/rabbitmq/.erlang.cookie root@rabbitmq2:/var/lib/rabbitmq/
[root@rabbitmq1 ~]# scp /var/lib/rabbitmq/.erlang.cookie root@rabbitmq3:/var/lib/rabbitmq/
将.erlang.cookie文件传至rabbitmq2和rabbitmq3节点后,需要修改该文件的用户与用户组,命令如下:
[root@rabbitmq2 rabbitmq]# chown rabbitmq:rabbitmq .erlang.cookie
[root@rabbitmq3 rabbitmq]# chown rabbitmq:rabbitmq .erlang.cookie
(2)配置节点加入集群
在rabbitmq2、rabbitmq3节点执行如下命令,将这两个节点作为RAM节点加入到RabbitMQ集群中,具体命令如下:
rabbitmq2节点:
[root@rabbitmq2 rabbitmq]# rabbitmqctl stop_app
Stopping node rabbit@rabbitmq2 ...
...done.
[root@rabbitmq2 rabbitmq]# rabbitmqctl join_cluster --ram rabbit@rabbitmq1
Clustering node rabbit@rabbitmq2 with rabbit@rabbitmq1 ...
...done.
[root@rabbitmq2 rabbitmq]# rabbitmqctl start_app
Starting node rabbit@rabbitmq2 ...
...done.
rabbitmq3节点:
[root@rabbitmq3 rabbitmq]# rabbitmqctl stop_app
Stopping node rabbit@rabbitmq3 ...
...done.
[root@rabbitmq3 rabbitmq]# rabbitmqctl join_cluster --ram rabbit@rabbitmq1
Clustering node rabbit@rabbitmq3 with rabbit@rabbitmq1 ...
...done.
[root@rabbitmq3 rabbitmq]# rabbitmqctl start_app
Starting node rabbit@rabbitmq3 ...
...done.
默认rabbitmq启动后是磁盘节点,在这个cluster命令下,rabbitmq2和rabbitmq3是内存节点,rabbitmq1是磁盘节点。
如果要使rabbitmq2、rabbitmq3都是磁盘节点,去掉--ram参数即可。
如果想要更改节点类型,可以使用命令rabbitmqctl change_cluster_node_type disc(ram),前提是必须停掉rabbit应用。
(3)配置RAM节点启用界面
在rabbitmq2和rabbitmq3节点上启用rabbitmq_management,命令如下:
rabbitmq2节点:
[root@rabbitmq2 rabbitmq]# rabbitmq-plugins enable rabbitmq_management
The following plugins have been enabled:
mochiweb
webmachine
rabbitmq_web_dispatch
amqp_client
rabbitmq_management_agent
rabbitmq_management
Plugin configuration has changed. Restart RabbitMQ for changes to take effect.
[root@rabbitmq2 rabbitmq]# service rabbitmq-server restart
Redirecting to /bin/systemctl restart rabbitmq-server.service
rabbitmq3节点:
[root@rabbitmq3 rabbitmq]# rabbitmq-plugins enable rabbitmq_management
The following plugins have been enabled:
mochiweb
webmachine
rabbitmq_web_dispatch
amqp_client
rabbitmq_management_agent
rabbitmq_management
Plugin configuration has changed. Restart RabbitMQ for changes to take effect.
[root@rabbitmq3 rabbitmq]# service rabbitmq-server restart
Redirecting to /bin/systemctl restart rabbitmq-server.service
启用rabbitmq2节点和rabbitmq3节点的监控界面后,登录http://172.30.11.12:15672,查看监控界面,如下图所示:
可以看到rabbitmq1节点为数据节点,rabbitmq2和rabbitmq3节点为RAM内存节点。
(4)RabbitMQ集群常用命令
查看插件打开情况,命令如下:
[root@rabbitmq1 ~]# rabbitmq-plugins list
[e] amqp_client 3.3.5
[ ] cowboy 0.5.0-rmq3.3.5-git4b93c2d
[ ] eldap 3.3.5-gite309de4
[e] mochiweb 2.7.0-rmq3.3.5-git680dba8
[ ] rabbitmq_amqp1_0 3.3.5
[ ] rabbitmq_auth_backend_ldap 3.3.5
[ ] rabbitmq_auth_mechanism_ssl 3.3.5
[ ] rabbitmq_consistent_hash_exchange 3.3.5
[ ] rabbitmq_federation 3.3.5
[ ] rabbitmq_federation_management 3.3.5
[E] rabbitmq_management 3.3.5
[e] rabbitmq_management_agent 3.3.5
[ ] rabbitmq_management_visualiser 3.3.5
[ ] rabbitmq_mqtt 3.3.5
[ ] rabbitmq_shovel 3.3.5
[ ] rabbitmq_shovel_management 3.3.5
[ ] rabbitmq_stomp 3.3.5
[ ] rabbitmq_test 3.3.5
[ ] rabbitmq_tracing 3.3.5
[e] rabbitmq_web_dispatch 3.3.5
[ ] rabbitmq_web_stomp 3.3.5
[ ] rabbitmq_web_stomp_examples 3.3.5
[ ] sockjs 0.3.4-rmq3.3.5-git3132eb9
[e] webmachine 1.10.3-rmq3.3.5-gite9359c7
启动监控管理器命令:
# rabbitmq-plugins enable rabbitmq_management
关闭监控管理器命令:
# rabbitmq-plugins disable rabbitmq_management
查看所有的队列:
# rabbitmqctl list_queues
Listing queues ...
...done.
清除所有的队列:
# rabbitmqctl reset
查看用户:
# rabbitmqctl list_users
Listing users ...
guest [administrator]
...done.
查看状态:
# rabbitmqctl status
查看集群状态,在RabbitMQ集群的任一节点上,可以查看RabbitMQ集群的状态,命令如下:
[root@rabbitmq1 ~]# rabbitmqctl cluster_status
Cluster status of node rabbit@rabbitmq1 ...
[{nodes,[{disc,[rabbit@rabbitmq1]},{ram,[rabbit@rabbitmq3,rabbit@rabbitmq2]}]},
{running_nodes,[rabbit@rabbitmq3,rabbit@rabbitmq2,rabbit@rabbitmq1]},
{cluster_name,<<"rabbit@rabbitmq1">>},
{partitions,[]}]
...done.
可以查看到rabbitmq1节点为disc磁盘节点,rabbitmq2节点和rabbitmq3节点为RAM内存节点。
新增用户admin,并设置密码为admin,命令如下:
# rabbitmqctl add_user admin admin
删除admin用户,命令如下:
# rabbitmqctl delete_user admin
修改admin用户的密码为admin123,命令如下:
# rabbitmqctl change_password admin admin123
设置角色命令:
# rabbitmqctl set_user_tags admin administrator monitoring policymaker management
设置用户权限命令:
# rabbitmqctl set_permissions -p VHostPath admin ConfP WriteP ReadP
查询所有权限命令:
# rabbitmqctl list_permissions [-p VHostPath]
指定用户权限命令:
# rabbitmqctl list_user_permissions admin
清除用户权限命令:
# rabbitmqctl clear_permissions [-p VHostPath] admin
标签:rabbitmq3,rabbitmq2,rabbitmq1,rabbitmq,root,节点 来源: https://www.cnblogs.com/wangluf/p/15674513.html