RabbitMQ集群的学习

搭建RabbitMQ集群

节点规划：
可以参照下图来规划自己的节点

一、修改主机名，添加映射，关闭防火墙
每一个节点根据自己的主机名规划配置
我的节点与主机名

10.30.59.188	rabbitmq1
10.30.59.219	rabbitmq2
–	–
10.30.59.248	rabbitmq3

rabbitmq1节点：

[root@localhost ~]# hostnamectl set-hostname rabbitmq1
[root@localhost ~]# bash
[root@rabbitmq1 ~]# vi /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
10.30.59.188 rabbitmq1
10.30.59.219 rabbitmq2
10.30.59.248 rabbitmq3
~
~
~
"/etc/hosts" 5L, 227C written
[root@rabbitmq1 ~]#

rabbitmq2节点：

[root@master1 opt]# hostnamectl set-hostname rabbitmq2
[root@master1 opt]# bash
[root@rabbitmq2 opt]# vi /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
10.30.59.188 rabbitmq1
10.30.59.219 rabbitmq2
10.30.59.248 rabbitmq3
~
~
~
"/etc/hosts" 5L, 227C written

rabbitmq3节点：

[root@localhost ~]# hostnamectl set-hostname rabbitmq3
[root@localhost ~]# bash
[root@rabbitmq3 ~]# vi /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
10.30.59.188 rabbitmq1
10.30.59.219 rabbitmq2
10.30.59.248 rabbitmq3
~
~
~
"/etc/hosts" 5L, 227C written

三个节点都执行的：

systemctl stop firewalld && systemctl disable  firewalld
setenforce 0

二、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。可以使用ftp
rabbitmq1节点：
1、先配好yum源

[root@localhost ~]# ls
anaconda-ks.cfg                                  rabbitmq-repo.tar.gz
[root@localhost ~]# tar -zxvf rabbitmq-repo.tar.gz  -C /opt/
#此处省略
[root@localhost ~]# cd /opt/
[root@localhost opt]# ls
centos rabbitmq-repo
[root@localhost opt]# vi /etc/yum.repos.d/local.repo
[centos]
name=centos
baseurl=file:///opt/centos
gpgcheck=0
enabled=1[rabbit]
name=rabbit
baseurl=file:///opt/rabbitmq-repo
gpgcheck=0
enabled=1
~
~
"/etc/yum.repos.d/local.repo" 17L, 224C written
[root@localhost opt]# yum clean all
Loaded plugins: fastestmirror
Cleaning repos: centos mariadb rabbit
Cleaning up everything
Maybe you want: rm -rf /var/cache/yum, to also free up space taken by orphaned data from disabled or removed repos
Cleaning up list of fastest mirrors
[root@localhost opt]# yum repolist
Loaded plugins: fastestmirror
Determining fastest mirrors
centos                                                                                                | 3.6 kB  00:00:00
mariadb                                                                                               | 2.9 kB  00:00:00
rabbit                                                                                                | 2.9 kB  00:00:00
(1/4): centos/group_gz                                                                                | 155 kB  00:00:00
(2/4): centos/primary_db                                                                              | 2.8 MB  00:00:00
(3/4): rabbit/primary_db                                                                              |  35 kB  00:00:00
(4/4): mariadb/primary_db                                                                             |  66 kB  00:00:00
repo id                                                    repo name                                                   status
centos                                                     centos                                                      3,723
mariadb                                                    mariadb                                                        91
rabbit                                                     rabbit                                                         26
repolist: 3,840
[root@localhost opt]#
[root@localhost opt]#
[root@localhost opt]# cd
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# yum repolist
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
repo id                                                    repo name                                                   status
centos                                                     centos                                                      3,723
rabbit                                                     rabbit                                                         26
repolist: 3,749
[root@localhost ~]#

然后ftp安装将yum源共享给另两个节点

[root@localhost ~]# yum install vsftpd  -y
[root@localhost ~]# echo anon_root=/opt >> /etc/vsftpd/vsftpd.conf
[root@localhost ~]# systemctl start vsftpd
[root@localhost ~]# systemctl enable  vsftpd
Created symlink from /etc/systemd/system/multi-user.target.wants/vsftpd.service to /usr/lib/systemd/system/vsftpd.service.

rabbitmq2节点和rabbitm3节点：

[root@rabbitmq2 ~]# mv /etc/yum.repos.d/C* /media/
[root@rabbitmq2 ~]# vi /etc/yum.repos.d/local.repo
[centos]
name=centos
baseurl=ftp://10.30.59.188/centos
gpgcheck=0
enabled=1[mariadb]
name=mariadb
baseurl=ftp://10.30.59.188/mariadb-repo
gpgcheck=0
enabled=1[rabbit]
name=rabbit
baseurl=ftp://10.30.59.188/rabbitmq-repo
gpgcheck=0
enabled=1[root@rabbitmq2 ~]# yum clean all
Loaded plugins: fastestmirror
Cleaning repos: centos mariadb rabbit
Cleaning up list of fastest mirrors
Other repos take up 102 M of disk space (use --verbose for details)
[root@rabbitmq2 ~]# yum repolist
Loaded plugins: fastestmirror
Determining fastest mirrors
centos                                                                                                | 3.6 kB  00:00:00
mariadb                                                                                               | 2.9 kB  00:00:00
rabbit                                                                                                | 2.9 kB  00:00:00
(1/4): centos/group_gz                                                                                | 155 kB  00:00:00
(2/4): rabbit/primary_db                                                                              |  35 kB  00:00:00
(3/4): centos/primary_db                                                                              | 2.8 MB  00:00:00
(4/4): mariadb/primary_db                                                                             |  66 kB  00:00:00
repo id                                                    repo name                                                   status
centos                                                     centos                                                      3,723
rabbit                                                     rabbit                                                         26
repolist: 3,749

三、安装RabbitMQ服务并启动
三个节点都要安装：

# yum install -y rabbitmq-server
# systemctl start rabbitmq-server
#systemctl status rabbitmq-server
● rabbitmq-server.service - RabbitMQ brokerLoaded: 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 agoProcess: 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 4Oct 20 05:48:14 rabbitmq1 systemd[1]: Starting RabbitMQ broker...

四、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:mochiwebwebmachinerabbitmq_web_dispatchamqp_clientrabbitmq_management_agentrabbitmq_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

开启了图形化监控页面后，能通过网页访问，访问端口为15672，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。
例如：

这是加入了其他主机后的，也就是配置集群后的

五、配置RabbitMQ集群服务
配置节点间的通信的原理：
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。

1、在这之前要配置好rabbitmq2节点和rabbitmq3节点的RAM界面访问，即启用监控管理器
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:mochiwebwebmachinerabbitmq_web_dispatchamqp_clientrabbitmq_management_agentrabbitmq_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:mochiwebwebmachinerabbitmq_web_dispatchamqp_clientrabbitmq_management_agentrabbitmq_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

2、配置cookie一致

[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

3、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。

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。

六、rabbitMQ集群的常用命令
1、查看插件打开情况

[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

2、启用监控管理器的命令

[root@rabbitmq2 ~]# rabbitmq-plugins enable rabbitmq_management
The following plugins have been enabled:mochiwebwebmachinerabbitmq_web_dispatchamqp_clientrabbitmq_management_agentrabbitmq_management
Plugin configuration has changed. Restart RabbitMQ for changes to take effect.

3、关闭监控管理器命令：

# rabbitmq-plugins disable rabbitmq_management

4、查看所有的队列

[root@rabbitmq2 ~]# rabbitmqctl list_queues
Listing queues ...
...done.
[root@rabbitmq2 ~]#

5、清除所有的队列

# rabbitmqctl reset

6、查看状态
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@rabbitmq2 ~]# rabbitmqctl list_queues
Listing queues ...
...done.
[root@rabbitmq2 ~]# rabbitmqctl status
Status of node rabbit@rabbitmq2 ...
[{pid,19134},{running_applications,[{rabbitmq_management,"RabbitMQ Management Console","3.3.5"},{rabbitmq_web_dispatch,"RabbitMQ Web Dispatcher","3.3.5"},{webmachine,"webmachine","1.10.3-rmq3.3.5-gite9359c7"},{mochiweb,"MochiMedia Web Server","2.7.0-rmq3.3.5-git680dba8"},{rabbitmq_management_agent,"RabbitMQ Management Agent","3.3.5"},{rabbit,"RabbitMQ","3.3.5"},{os_mon,"CPO  CXC 138 46","2.2.14"},{mnesia,"MNESIA  CXC 138 12","4.11"},{amqp_client,"RabbitMQ AMQP Client","3.3.5"},{inets,"INETS  CXC 138 49","5.9.8"},{xmerl,"XML parser","1.3.6"},{sasl,"SASL  CXC 138 11","2.3.4"},{stdlib,"ERTS  CXC 138 10","1.19.4"},{kernel,"ERTS  CXC 138 10","2.16.4"}]},{os,{unix,linux}},{erlang_version,"Erlang R16B03-1 (erts-5.10.4) [source] [64-bit] [smp:2:2] [async-threads:30] [hipe] [kernel-poll:true]\n"},{memory,[{total,39613672},{connection_procs,5600},{queue_procs,5600},{plugins,127960},{other_proc,13460392},{mnesia,63664},{mgmt_db,12224},{msg_index,34528},{other_ets,1078952},{binary,20648},{code,19754683},{atom,703377},{other_system,4346044}]},{alarms,[]},{listeners,[{clustering,25672,"::"},{amqp,5672,"::"}]},{vm_memory_high_watermark,0.4},{vm_memory_limit,1589456076},{disk_free_limit,50000000},{disk_free,19906449408},{file_descriptors,[{total_limit,924},{total_used,3},{sockets_limit,829},{sockets_used,1}]},{processes,[{limit,1048576},{used,178}]},{run_queue,0},{uptime,9227}]
...done.
[root@rabbitmq2 ~]#

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。

7、新增用户admin，并设置密码为admin

[root@rabbitmq2 ~]# rabbitmqctl add_user admin admin
Creating user "admin" ...
...done.

修改用户密码为admin23

[root@rabbitmq2 ~]# rabbitmqctl change_password admin admin123
Changing password for user "admin" ...
...done.

删除用户

[root@rabbitmq2 ~]# rabbitmqctl delete_user admin
Deleting user "admin" ...
...done.

8、设置角色命令

[root@rabbitmq2 ~]# rabbitmqctl set_user_tags admin adminstrator monitoring policymaker management
Setting tags for user "admin" to [adminstrator,monitoring,policymaker,management] ...
...done.

9、设置用户权限命令
指定的vhost必须有，所以我们需要创建一个

[root@rabbitmq2 ~]# rabbitmqctl add_vhost VHostPath
Creating vhost "VHostPath" ...
...done.
[root@rabbitmq2 ~]#  rabbitmqctl set_permissions -p VHostPath admin ConfP WriteP ReadP
Setting permissions for user "admin" in vhost "VHostPath" ...
...done.

10、查询所有权限命令：

# rabbitmqctl list_permissions [-p  VHostPath]

[root@rabbitmq2 ~]#  rabbitmqctl list_permissions -p  VHostPath
Listing permissions in vhost "VHostPath" ...
admin   ConfP   WriteP  ReadP
...done.

11、指定用户权限命令：

# rabbitmqctl list_user_permissions admin

[root@rabbitmq2 ~]# rabbitmqctl list_user_permissions admin
Listing permissions for user "admin" ...
VHostPath       ConfP   WriteP  ReadP
...done.

12、清除用户权限命令：

# rabbitmqctl clear_permissions [-p VHostPath] admin

[root@rabbitmq2 ~]# rabbitmqctl clear_permissions -p VHostPath admin
Clearing permissions for user "admin" in vhost "VHostPath" ...
...done.

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