rabbitmq3.8集群部署

环境介绍

主机名 IP
rabbitmq1 192.168.50.134
rabbitmq2 192.168.50.135
rabbitmq3 192.168.50.136

1、修改主机名

如果已经修改过主机名的话,就不再进行修改。但是切记rabbitmq搭建完成后期不要再进行修改,否则会出现问题。

hostnamectl set-hostname rabbitmq1
hostnamectl set-hostname rabbitmq2
hostnamectl set-hostname rabbitmq3

每个节点添加hosts

192.168.50.134 rabbitmq1
192.168.50.135 rabbitmq2
192.168.50.136 rabbitmq3

最好是重启一下

reboot

2、安装源

三台分别都进行操作

分别是erlang和rabbitmq的源。默认地源下载的版本比较低,这里安装的erlang版本是21.3.8.18。rabbitmq的版本是3.8.9

erlang的源

[rabbitmq-erlang]
name=rabbitmq-erlang
baseurl=https://dl.bintray.com/rabbitmq-erlang/rpm/erlang/21/el/7
gpgcheck=1
gpgkey=https://dl.bintray.com/rabbitmq/Keys/rabbitmq-release-signing-key.asc
repo_gpgcheck=0
enabled=1

rabbitmq-server的源

[bintray-rabbitmq-server]
name=bintray-rabbitmq-rpm
baseurl=https://dl.bintray.com/rabbitmq/rpm/rabbitmq-server/v3.8.x/el/7/
gpgcheck=0
repo_gpgcheck=0
enabled=1

接下来需要生成一下yum缓存

dnf clean all
dnf makecache

3、安装

三台分别都进行操作

3.1、先安装erlang和socat

dnf install socat erlang -y

3.2、安装rabbitmq-server

dnf install rabbitmq-server -y

分别启动rabbitmq-server服务

systemctl start rabbitmq-server

4、三台机器同步.erlang.cookie文件

这里我们以rabbtmq1节点作为集群管理节点,.erlang.cookie文件在rabbitmq的安装目录/var/lib/rabbitmq目录下,这是一个隐藏文件,需要加上-a参数

[root@rabbitmq1 rabbitmq]# ls -al
total 8
drwxr-xr-x   3 rabbitmq rabbitmq   42 Oct 30 21:47 .
drwxr-xr-x. 27 root     root     4096 Oct 30 21:20 ..
-r--------   1 rabbitmq rabbitmq   20 Oct 30 00:00 .erlang.cookie
drwxr-x---   4 rabbitmq rabbitmq  135 Oct 30 21:47 mnesia

这里我们把.erlang.cookie文件同步到其他机器上面

[root@rabbitmq1 rabbitmq]# scp .erlang.cookie  root@192.168.50.135:/var/lib/rabbitmq/
root@192.168.50.135's password: 
.erlang.cookie                             100%   20    27.0KB/s   00:00    
[root@rabbitmq1 rabbitmq]# scp .erlang.cookie  root@192.168.50.136:/var/lib/rabbitmq/
root@192.168.50.136's password: 
.erlang.cookie                             100%   20    36.7KB/s   00:00 

同步完成之后我们再来查看几个节点的.erlang.cookie文件,发现都是一致的,这是我们想要的结果。

[root@rabbitmq1 rabbitmq]# cat .erlang.cookie 
SFWVLUCDUUVPIVRJDWTE[root@rabbitmq1 rabbitmq]#

这个文件是不带结尾换行符的,大家应该能看出来。

5、重启服务

三个节点分别重启rabbitmq-server服务

systemctl restart rabbitmq-server

6、三个节点都打开rabbitmq监控插件

如果不打开的话,那么集群之间无法查看对方的数据,查看数据就是依靠web插件来实现的

[root@rabbitmq1 ~]# rabbitmq-plugins enable rabbitmq_management
Enabling plugins on node rabbit@rabbitmq1:
rabbitmq_management
The following plugins have been configured:
  rabbitmq_management
  rabbitmq_management_agent
  rabbitmq_web_dispatch
Applying plugin configuration to rabbit@rabbitmq1...
The following plugins have been enabled:
  rabbitmq_management
  rabbitmq_management_agent
  rabbitmq_web_dispatch

started 3 plugins.

其他另外两个节点都打开此功能(如有必要,需要重启服务,不过一般都不用重启rabbitmq)

7、在rabbitmq1上面添加用户

默认下,我们上面打开了监控插件功能,那么此时就能够看到15672端口了,我们可以使用IP:PORT的方式来进行访问,默认地账户密码都是guest,但是rabbitmq只允许本机通过localhost的方式进行通讯,因此我们再创建个其他的用户实现远程访问。

rabbitmq1添加用户实现web访问

[root@rabbitmq1 ebin]# rabbitmqctl add_user admin 111111
Adding user "admin" ...
[root@rabbitmq1 ebin]# rabbitmqctl set_permissions -p / admin ".*" ".*" ".*"
Setting permissions for user "admin" in vhost "/" ...
[root@rabbitmq1 ebin]# rabbitmqctl set_user_tags admin administrator
Setting tags for user "admin" to [administrator] ...

这个时候再次访问并登录即可。

8、将其他两个节点rabbitmq2、rabbitmq3加入集群中

这里需要强调的是,我们将rabbitmq1作为第一个集群节点,然后在rabbitm2和rabbitmq3节点分别操作申请加入集群的方式。

8.1、rabbitmq1节点查看当前集群。

虽然只有一个节点,但也是集群,也是可以查看本身的集群信息的。

[root@rabbitmq1 ebin]# rabbitmqctl cluster_status
Cluster status of node rabbit@rabbitmq1 ...
Basics

Cluster name: rabbit@rabbitmq1

Disk Nodes

rabbit@rabbitmq1

Running Nodes

rabbit@rabbitmq1

Versions

rabbit@rabbitmq1: RabbitMQ 3.8.9 on Erlang 21.3.8.18

Maintenance status

Node: rabbit@rabbitmq1, status: not under maintenance

Alarms

(none)

Network Partitions

(none)

Listeners

Node: rabbit@rabbitmq1, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@rabbitmq1, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
Node: rabbit@rabbitmq1, interface: [::], port: 15672, protocol: http, purpose: HTTP API

Feature flags

Flag: drop_unroutable_metric, state: disabled
Flag: empty_basic_get_metric, state: disabled
Flag: implicit_default_bindings, state: enabled
Flag: maintenance_mode_status, state: enabled
Flag: quorum_queue, state: enabled
Flag: virtual_host_metadata, state: enabled

我们需要注意的一行信息就是Cluster name: rabbit@rabbitmq1。要记住这个名字,一会我们要使用。

8.2、现在我们操作rabbitmq2节点

需要强调一下,集群中至少有一个节点是磁盘节点用于数据持久化,然后剩下的节点都设置为内存节点以提高性能。

这里将 rabbitmq2 添加到集群当中,并成为内存节点,不加--ram 默认是磁盘节点

[root@rabbitmq2 ~]# rabbitmqctl stop_app
Stopping rabbit application on node rabbit@rabbitmq2 ...
[root@rabbitmq2 ~]# rabbitmqctl reset
Resetting node rabbit@rabbitmq2 ...
[root@rabbitmq2 ~]# rabbitmqctl join_cluster --ram rabbit@rabbitmq1
Clustering node rabbit@rabbitmq2 with rabbit@rabbitmq1
[root@rabbitmq2 ~]# rabbitmqctl  start_app
Starting node rabbit@rabbitmq2 ...

好了,现在rabbitmq2节点已经加入集群中了,怎么验证呢?我们来到rabbitmq1节点上面查看集群信息即可看到rabbitmq2节点。

[root@rabbitmq1 ~]# rabbitmqctl cluster_status
Cluster status of node rabbit@rabbitmq1 ...
Basics

Cluster name: rabbit@rabbitmq1

Disk Nodes

rabbit@rabbitmq1

RAM Nodes

rabbit@rabbitmq2

Running Nodes

rabbit@rabbitmq1
rabbit@rabbitmq2

Versions

rabbit@rabbitmq1: RabbitMQ 3.8.9 on Erlang 21.3.8.18
rabbit@rabbitmq2: RabbitMQ 3.8.9 on Erlang 21.3.8.18

Maintenance status

Node: rabbit@rabbitmq1, status: not under maintenance
Node: rabbit@rabbitmq2, status: not under maintenance

Alarms

(none)

Network Partitions

(none)

Listeners

Node: rabbit@rabbitmq1, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@rabbitmq1, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
Node: rabbit@rabbitmq1, interface: [::], port: 15672, protocol: http, purpose: HTTP API
Node: rabbit@rabbitmq2, interface: [::], port: 15672, protocol: http, purpose: HTTP API
Node: rabbit@rabbitmq2, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@rabbitmq2, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0

8.3、现在操作rabbitmq3节点加入集群

[root@rabbitmq3 ~]# rabbitmqctl stop_app
Stopping rabbit application on node rabbit@rabbitmq3 ...
[root@rabbitmq3 ~]# rabbitmqctl reset
Resetting node rabbit@rabbitmq3 ...
[root@rabbitmq3 ~]# rabbitmqctl join_cluster --ram rabbit@rabbitmq1
Clustering node rabbit@rabbitmq3 with rabbit@rabbitmq1
[root@rabbitmq3 ~]# rabbitmqctl start_app
Starting node rabbit@rabbitmq3 ...

现在也可以来到rabbitmq1节点查看到rabbitmq3的节点信息了。

当然也可以在web上面查看到三个节点的信息,如下所示:、

9、设置集群为镜像模式

镜像队列机制就是将队列在 N 个节点之间设置主从关系,消息会在 N 个节点之间进行自动同步,且如果其中一个节点不可用,并不会导致消息丢失或服务不可用的情况,提升 MQ 集群的整体高可用性。

这里在rabbitmq1节点操作(在任意节点操作都是可以的)

[root@rabbitmq1 ~]# rabbitmqctl set_policy ha-all "^" '{"ha-mode":"all"}'
Setting policy "ha-all" for pattern "^" to "{"ha-mode":"all"}" with priority "0" for vhost "/" ...

10、验证当前集群

[root@rabbitmq1 ~]# rabbitmqctl cluster_status
Cluster status of node rabbit@rabbitmq1 ...
Basics

Cluster name: rabbit@rabbitmq1

Disk Nodes

rabbit@rabbitmq1

RAM Nodes

rabbit@rabbitmq2
rabbit@rabbitmq3

Running Nodes

rabbit@rabbitmq1
rabbit@rabbitmq2
rabbit@rabbitmq3

Versions

rabbit@rabbitmq1: RabbitMQ 3.8.9 on Erlang 21.3.8.18
rabbit@rabbitmq2: RabbitMQ 3.8.9 on Erlang 21.3.8.18
rabbit@rabbitmq3: RabbitMQ 3.8.9 on Erlang 21.3.8.18

Maintenance status

Node: rabbit@rabbitmq1, status: not under maintenance
Node: rabbit@rabbitmq2, status: not under maintenance
Node: rabbit@rabbitmq3, status: not under maintenance

Alarms

(none)

Network Partitions

(none)

Listeners

Node: rabbit@rabbitmq1, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@rabbitmq1, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
Node: rabbit@rabbitmq1, interface: [::], port: 15672, protocol: http, purpose: HTTP API
Node: rabbit@rabbitmq2, interface: [::], port: 15672, protocol: http, purpose: HTTP API
Node: rabbit@rabbitmq2, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@rabbitmq2, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
Node: rabbit@rabbitmq3, interface: [::], port: 15672, protocol: http, purpose: HTTP API
Node: rabbit@rabbitmq3, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@rabbitmq3, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
posted @ 2020-10-31 11:15  峰哥ge  阅读(2367)  评论(0编辑  收藏  举报