rabbitmq集群实现

官方文档

一、环境准备

1.1 IP地址规划

1.2 配置主机域名解析

##每个节点修改主机名
# hostnamectl set-hostname mq1.example.local
# hostnamectl set-hostname mq2.example.local
# hostnamectl set-hostname mq3.example.local

##所有节点配置域名解析
# vim /etc/hosts
10.0.1.101    mq1  mq1.example.local
10.0.1.102    mq2  mq2.example.local
10.0.1.103    mq3  mq3.example.local

二、部署RabbitMQ集群

2.1 使用脚本快速部署RabbitMQ

# bash onekey_install_rabbitmq.sh
# cat onekey_install_rabbitmq.sh
#!/usr/bin/sh

sudo apt-get install curl gnupg apt-transport-https -y

## Team RabbitMQ's main signing key
curl -1sLf "https://keys.openpgp.org/vks/v1/by-fingerprint/0A9AF2115F4687BD29803A206B73A36E6026DFCA" | sudo gpg --dearmor | sudo tee /usr/share/keyrings/com.rabbitmq.team.gpg > /dev/null
## Launchpad PPA that provides modern Erlang releases
curl -1sLf "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0xf77f1eda57ebb1cc" | sudo gpg --dearmor | sudo tee /usr/share/keyrings/net.launchpad.ppa.rabbitmq.erlang.gpg > /dev/null
## PackageCloud RabbitMQ repository
curl -1sLf "https://packagecloud.io/rabbitmq/rabbitmq-server/gpgkey" | sudo gpg --dearmor | sudo tee /usr/share/keyrings/io.packagecloud.rabbitmq.gpg > /dev/null

## Add apt repositories maintained by Team RabbitMQ
sudo tee /etc/apt/sources.list.d/rabbitmq.list <<EOF
## Provides modern Erlang/OTP releases
##
## "bionic" as distribution name should work for any reasonably recent Ubuntu or Debian release.
## See the release to distribution mapping table in RabbitMQ doc guides to learn more.
deb [signed-by=/usr/share/keyrings/net.launchpad.ppa.rabbitmq.erlang.gpg] http://ppa.launchpad.net/rabbitmq/rabbitmq-erlang/ubuntu bionic main
deb-src [signed-by=/usr/share/keyrings/net.launchpad.ppa.rabbitmq.erlang.gpg] http://ppa.launchpad.net/rabbitmq/rabbitmq-erlang/ubuntu bionic main

## Provides RabbitMQ
##
## "bionic" as distribution name should work for any reasonably recent Ubuntu or Debian release.
## See the release to distribution mapping table in RabbitMQ doc guides to learn more.
deb [signed-by=/usr/share/keyrings/io.packagecloud.rabbitmq.gpg] https://packagecloud.io/rabbitmq/rabbitmq-server/ubuntu/ bionic main
deb-src [signed-by=/usr/share/keyrings/io.packagecloud.rabbitmq.gpg] https://packagecloud.io/rabbitmq/rabbitmq-server/ubuntu/ bionic main
EOF

## Update package indices
sudo apt-get update -y

## Install Erlang packages
sudo apt-get install -y erlang-base \
                        erlang-asn1 erlang-crypto erlang-eldap erlang-ftp erlang-inets \
                        erlang-mnesia erlang-os-mon erlang-parsetools erlang-public-key \
                        erlang-runtime-tools erlang-snmp erlang-ssl \
                        erlang-syntax-tools erlang-tftp erlang-tools erlang-xmerl

## Install rabbitmq-server and its dependencies
sudo apt-get install rabbitmq-server -y --fix-missing

2.2 同步cookie

Rabbitmq的集群是依赖于erlang 的集群来工作的，所以必须先构建起erlang 的集群环境，而Erlang 的集群中各节点是通过一个magic cookie来实现的。所以必须保证各节点cookie保持一致，否则节点之间就无法通信。

scp /var/lib/rabbitmq/.erlang.cookie 10.0.1.102:/var/lib/rabbitmq/.erlang.cookie
scp /var/lib/rabbitmq/.erlang.cookie 10.0.1.103:/var/lib/rabbitmq/.erlang.cookie

2.3 启动RabbitMQ服务

##所有节点执行
# systemctl start rabbitmq-server

2.4 添加集群

##在mq1作为内存节点添加到mq3
# rabbitmqctl stop_app
# rabbitmqctl reset
# rabbitmqctl join_cluster rabbit@mq3 --ram
# rabbitmqctl start_app

##在mq2作为内存节点添加到mq3
# rabbitmqctl stop_app
# rabbitmqctl reset
# rabbitmqctl join_cluster rabbit@mq3 --ram
# rabbitmqctl start_app

2.5 验证集群状态

##在mq3查看
root@mq3:/home/zgy# rabbitmqctl cluster_status
Cluster status of node rabbit@mq3 ...
Basics

Cluster name: rabbit@mq3

Disk Nodes

rabbit@mq3

RAM Nodes

rabbit@mq1
rabbit@mq2

Running Nodes

rabbit@mq1
rabbit@mq2
rabbit@mq3

Versions

rabbit@mq1: RabbitMQ 3.9.13 on Erlang 24.2.1
rabbit@mq2: RabbitMQ 3.9.13 on Erlang 24.2.1
rabbit@mq3: RabbitMQ 3.9.13 on Erlang 24.2.1

Maintenance status

Node: rabbit@mq1, status: not under maintenance
Node: rabbit@mq2, status: not under maintenance
Node: rabbit@mq3, status: not under maintenance

Alarms

(none)

Network Partitions

(none)

Listeners

Node: rabbit@mq1, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@mq1, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
Node: rabbit@mq2, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@mq2, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
Node: rabbit@mq3, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@mq3, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0

Feature flags

Flag: implicit_default_bindings, state: enabled
Flag: maintenance_mode_status, state: enabled
Flag: quorum_queue, state: enabled
Flag: stream_queue, state: enabled
Flag: user_limits, state: enabled
Flag: virtual_host_metadata, state: enabled