CentOS7 YUM安装RabbitMQ3

重新加载文件

source /etc/profile

查看java是否存在

java -version

#### 3. 部署Erlang/OTP 23.3.4.4

下载Erlang

wget https://github.com/rabbitmq/erlang-rpm/releases/download/v23.3.4.4/erlang-23.3.4.4-1.el7.x86_64.rpm

上述文件若下载不下可进行提取,链接：https://pan.baidu.com/s/1F940ybqa8x2Enc5djZ_ntw 提取码: v5r3

rpm -ivh erlang-23.3.4.4-1.el7.x86_64.rpm

#### 4. 部署单机版rabbitmq3.8.19及相关插件

下载rabbitmq

wget https://github.com/rabbitmq/rabbitmq-server/releases/download/v3.8.19/rabbitmq-server-3.8.19-1.el7.noarch.rpm

上述文件若下载不下可进行提取,链接: https://pan.baidu.com/s/16_eeTzSDrWCmeE-XnBiMTQ 提取码: at82

rpm -ivh rabbitmq-server-3.8.19-1.el7.noarch.rpm
##启用rabbitmq_delayed_message_exchange插件，实现延迟队列：
cd /usr/lib/rabbitmq/lib/rabbitmq_server-3.8.19/plugins
wget https://github.com/rabbitmq/rabbitmq-delayed-message-exchange/releases/download/v3.8.0/rabbitmq_delayed_message_exchange-3.8.0.ez

上述文件若下载不下可进行提取,链接: https://pan.baidu.com/s/1MxOkSEXsQDUJ3d0KaphvIw 提取码: ae3f

rabbitmq-plugins enable rabbitmq_delayed_message_exchange
##启用rabbitmq_management管理插件：
rabbitmq-plugins enable rabbitmq_management
rabbitmq-plugins list
##设置开机启动：
systemctl enable rabbitmq-server
systemctl list-unit-files|grep rabbit
systemctl restart rabbitmq-server
systemctl status rabbitmq-server
systemctl stop rabbitmq-server
##rabbitmq启动、状态、停止的非systemctl命令：
rabbitmq-server -detached
rabbitmqctl status
rabbitmqctl stop

**注：1-4步每台服务器均需操作**


#### 5. 配置rabbitmq集群


5.1. 选取某IP为主节点，读取其cookie，并复制到其他节点（节点之间通过cookie确定相互是否可通信，权限400,只读）举例：目前有172.16.10.1(hostname为mq01-10-1)及172.16.10.2(hostname为mq02-10-2)两台服务器，我们已172.16.10.1为主节点

查看主节点也就是172.16.10.1的cookie

cd /var/lib/rabbitmq/
cat .erlang.cookie

将查看到的内容复制到172.16.10.2的/var/lib/rabbitmq/.erlang.cookie下(直接覆盖)

设置只读权限(每台服务器都需要执行)

chmod 400 .erlang.cookie

查看确认一下权限

ll -a .erlang.cookie

5.2. 各节点依次启动rabbitmq

rabbitmq-server -detached 或者 systemctl restart rabbitmq-server

5.3. 查看各节点和集群的状态：

rabbitmqctl status
rabbitmqctl cluster_status

5.4. 建立集群,以mq01-10-1为主节点

#建立集群之前请先在各个节点的/etc/hosts记录好主机名及IP
#在172.16.10.1中设置
vim /etc/hosts
172.16.10.2 mq02-10-2
#在172.16.10.2中etc/hosts设置
172.16.10.1 mq01-10-1

#在主节点以外的mq02-10-2上执行：
rabbitmqctl stop_app
#显示如下
#-----------------------
#Stopping rabbit application on node rabbit@mq02-10-2 …
#-----------------------
#重置
rabbitmqctl reset
#-----------------------------------
#Resetting node rabbit@mq02-10-2 …
#-----------------------------------
#加入主节点
rabbitmqctl join_cluster rabbit@mq01-10-1
#------------------------------------------------------
#Clustering node rabbit@mq01-10-1 with rabbit@mq01-10-2
#------------------------------------------------------
#启动mq
rabbitmqctl start_app
#----------------------------------
#Starting node rabbit@mq01-10-2 …
#completed with 0 plugins.
#----------------------------------

查看集群状态

rabbitmqctl cluster_status
#---------------------------------------------
#Cluster status of node rabbit@mq02-10-2 …
#Basics
#Cluster name: rabbit@mq02-10-2
#Disk Nodes
#rabbit@mq01-10-1
#rabbit@mq02-10-2
#Running Nodes
#rabbit@mq01-10-1
#rabbit@mq02-10-2
#…
#---------------------------------------------

5.5. 添加后台管理账户（只需一台操作，集群之间同步）

rabbitmqctl add_user xiaosen xiaosen123
#---------

Adding user “xiaosen” …

#--------
#设置该用户为管理员
rabbitmqctl set_user_tags xiaosen administrator
#-------
#Setting tags for user “xiaosen” to [administrator] …
#------
#设置访问权限
rabbitmqctl set_permissions -p / xiaosen “.*” “.*” “.*”
#------
#Setting permissions for user “xiaosen” in vhost “/” …
#-------
#设置镜像模式
rabbitmqctl set_policy ha-all “^” ‘{“ha-mode”:“all”}’
#-----------
#Setting policy “ha-all” for pattern “^” to “{“ha-mode”:“all”}” with priority “0” for vhost “/” …
#------------

#### 6.访问rabbitmq管理平台：http://{ip}:15672 账号密码为5.5设置的


至此集群搭建完成  
 一些mq的使用命令

当前窗口启动 rabbitmq

rabbitmq-server

后台启动 rabbitmq

rabbitmq-server -detached

停止 rabbitmq

rabbitmqctl stop

查看所有队列

rabbitmqctl list_queues

查看所有虚拟主机

rabbitmqctl list_vhosts

在Erlang VM运行的情况下启动RabbitMQ应用

rabbitmqctl start_app
rabbitmqctl stop_app

查看节点状态

rabbitmqctl status

查看所有可用的插件

rabbitmq-plugins list

启用插件

rabbitmq-plugins enable

停用插件

rabbitmq-plugins disable

添加用户

rabbitmqctl add_user username password

列出所有用户

rabbitmqctl list_users

删除用户

rabbitmqctl delete_user username

清除用户权限

rabbitmqctl clear_permissions -p vhostpath username

列出用户权限

rabbitmqctl list_user_permissions username

修改密码

rabbitmqctl change_password username newpassword

设置用户权限

rabbitmqctl set_permissions -p vhostpath username “.*” “.*” “.*”

创建虚拟主机

rabbitmqctl add_vhost vhostpath

列出虚拟主机上的所有权限

rabbitmqctl list_permissions -p vhostpath

删除虚拟主机

rabbitmqctl delete_vhost vhost vhostpath

移除所有数据，要在 rabbitmqctl stop_app 之后使用

rabbitmqctl reset

---


为了保证rabbitmq的高可用性，我们可以在这基础上部署haproxy及keepalived来保证服务的高可用性  
 配合阿里云的havip(高可用虚拟IP，设ip为：172.16.100.100)来进行搭建。实现主备切换功能。主宕机了由备来替补  
 如图：  
 ![在这里插入图片描述](https://img-blog.csdnimg.cn/direct/38ecb313eeaf44b59e10a99a9277da77.png#pic_center)


##### 1. 安装haproxy(主及备都需要安装)

yum -y install haproxy keepalived
cd /etc/haproxy/
cp haproxy.cfg haproxy.cfg.old
vim haproxy.cfg

配置如下：

global
log 127.0.0.1 local2 info
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
# turn on stats unix socket
stats socket /var/lib/haproxy/stats
defaults
mode tcp
log global
option tcplog
option dontlognull
option http-server-close
option redispatch
retries 3
timeout http-request 10s
timeout queue 90s
timeout connect 90s
timeout client 120s
timeout server 120s
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
listen private_monitoring
bind 0.0.0.0:5100
mode http
option httplog
stats enable
stats uri /stats
stats refresh 30s
# 查看haproxy状态的登录账号及密码 可访问:http://{HaVip}:5100/stats进行查看
stats auth admin:mg_admin
stats realm welcome login\ Haproxy
stats hide-version
listen rabbitmq_cluster
bind 0.0.0.0:5672
timeout client 3h
timeout server 3h
mode tcp
option tcplog
balance roundrobin
#mq的地址
server mq001 172.16.10.1:5672 check inter 2000 rise 2 fall 2
server mq002 172.16.10.2:5672 check inter 2000 rise 2 fall 2
listen rabbitmq_admin
bind 0.0.0.0:15672
#mq管理后台的地址
server mq001 172.16.10.1:15672
server mq002 172.16.10.2:15672

#（UDP配置取消注释，添加local0的haproxy日志）
vim /etc/rsyslog.conf

Provides UDP syslog reception

$ModLoad imudp
$UDPServerRun 514

Save haproxy log

local2.* /var/log/haproxy/haproxy.log

vim /etc/sysconfig/rsyslog

#SYSLOGD_OPTIONS=“”
SYSLOGD_OPTIONS=“-r -m 0 -c 2”

重启日志服务

systemctl restart rsyslog.service

开机自启动

systemctl enable haproxy

启动服务

systemctl start haproxy

重启

systemctl restart haproxy

查看状态

systemctl status haproxy

##### 2.配置keepalived主从

配置主节点的keepalived.conf

vim /etc/keepalived/keepalived.conf

global_defs {
router_id HA115
script_user root
enable_script_security
}
vrrp_script chk_haproxy
{
script “/etc/keepalived/scripts/haproxy_check.sh”
interval 1
timeout 1
fall 2
}
vrrp_instance haproxy {
state MASTER
interface eth0
virtual_router_id 115
# 开启抢占模式 主机宕机后再恢复需要再次回到主
preempt yes
# 优先级 主机要比备机的优先级高
priority 150
unicast_src_ip 172.16.10.3
unicast_peer {
172.16.10.4
}
virtual_ipaddress {
172.16.10.100
}
track_script {
chk_haproxy
}
notify_master “/etc/keepalived/scripts/haproxy_master.sh”
}

配置备节点的keepalived.conf

vim /etc/keepalived/keepalived.conf

global_defs {
router_id HA115
script_user root
enable_script_security
}
vrrp_script chk_haproxy
{
script “/etc/keepalived/scripts/haproxy_check.sh”
interval 1
timeout 1
fall 2
}
vrrp_instance haproxy {
state BACKUP
interface eth0
virtual_router_id 115
# 开启抢占模式 主机宕机后再恢复需要再次回到主
preempt yes
# 优先级 备机要主机的优先级低