preface

RabbitMQ is the message queue most used by Internet companies at present. It is commonly used in the following scenarios:

• Asynchronous, decoupling
• Peak elimination, Pinggu
  

The following is the main content of this article. This case is for reference only

1, Installation mode

• Install via yum
• Download the installation package and install it in rpm mode (relevant dependencies need to be installed manually)

2, RPM mode installation

1. Install erlang

Rabbitmq is written in Erlang language, so it depends on the environment of Erlang. Pay attention to the version relationship between Erlang and rabbitmq.
View the corresponding relationship between RabbitMQ version and Erlang version: https://www.rabbitmq.com/which-erlang.html

RabbitMQ version	Minimum and Maximum required Erlang/OTP
3.8.16	23.2~24.x
3.8.9 ~ 3.8.15	22.3~23.x
3.8.4 ~ 3.8.8	21.3~23.x
3.8.0 ~ 3.8.3	21.3~22.x
3.7.19 ~ 3.7.27	21.3~22.x
3.7.15 ~ 3.7.18	20.3~22.x
3.7.11 ~ 3.7.14	20.3~21.x
3.7.7 ~ 3.7.10	19.3~21.x
3.7.0 ~ 3.7.6	19.3~20.x

Go to the official website of Erlang and enter the Erlang download page. The official website link: https://www.erlang.org/
OPT download the specified version erlang: https://www.erlang.org/downloads/22.3

After downloading and uploading the server, create an erlang folder in the / usr/local directory, because the erlang compilation and installation is installed in bin and lib under / usr/local by default. Here, we install it into / usr/local/erlang to facilitate search and use.

mkdir -p /usr/local/erlang

1.1 dependencies required to install erlang

yum install make gcc gcc-c++ build-essential openssl openssl-devel unixODBC unixODBC-devel kernel-devel m4 ncurses-devel

1.2 compile and install Erlang

# Enter erlang directory
cd otp_src_22.3/ 
# compile
./configure  --prefix=/usr/local/erlang --without-javac
# Install erlang
make && make install

1.3 configuring Erlang environment variables

vim /etc/profile

Add Erlang environment variable

# Add the following configuration information
export ERLANG_HOME=/usr/local/erlang
export PATH=${ERLANG_HOME}/bin:${PATH}

Refresh configuration

source /etc/profile

1.4 create a soft chain

ln -s /usr/local/erlang/bin/erl /usr/local/bin/erl

1.5 viewing and installing erlang version

erl -version

2. Install RabbitMQ

Enter the RabbitMQ official website and download the corresponding version of RabbitMQ. The official website link is: https://www.rabbitmq.com/

2.1 download and upload the server and unzip it

tar -zxvf rabbitmq-server-generic-unix-3.8.3.tar

2.2 configuring rabbitmq environment profile

vim /etc/profile

Add the following configuration information

export RABBITMQ_HOME=/Your path/rabbitmq_server-3.8.3
export PATH=${RABBITMQ_HOME}/sbin:${PATH}

Refresh configuration

source /etc/profile

2.3 open the web management interface plug-in

./rabbitmq-plugins enable rabbitmq_management

2.4 start rabbitmq

./rabbitmq-server -detached

2.5 add users and set access rights

The default login name and password are guest

# Add user
./rabbitmqctl add_user username password
# Delete a user
./rabbitmqctl delete_user username 
# Add administrator role
./rabbitmqctl set_user_tags username administrator
# Configure vhost permissions
./rabbitmqctl set_permissions  -p  VHostPath  User  ConfP  WriteP  ReadP

2.6 setting rabbitmq startup and self startup

vi /usr/lib/systemd/system/rabbitmq.service

Create start. In the rabbitmq-3.8.3 directory sh

#!/bin/bash
export PATH=$PATH:/usr/local/erlang/bin
export HOME=/Your path/rabbitmq-3.8.3/rabbitmq_server-3.8.3
/Your path/rabbitmq_server-3.8.3/sbin/./rabbitmq-server

Add configuration (note that start.sh is created first)

[Unit]
Decription=rabbitmq
After=network.target

[Service]
Type=simple
ExecStart=/xxx/rabbitmq-3.8.3/start.sh
PrivateTmp=true

[Install]
WantedBy=multi-user.target

Enable boot

systemctl enable rabbitmq.service

Start service

systemctl start rabbitmq.service

Restart service

systemctl restart rabbitmq.service

Out of Service

systemctl stop rabbitmq.service

Prohibit startup

systemctl disable rabbitmq.service

3.RabbitMQ plug-in installation

# see
./sbin/rabbitmq-plugins list

3.1 view the plug-ins installed by RabbitMQ

3.2 enable plug-ins

./sbin/rabbitmq-plugins enable xxx

3.3 disable plug-ins

./sbin/rabbitmq-plugins disable xxx

summary

The above is how to install the specified RabbitMQ version through RPM. After installation, you can use http://xxx:5673/ To access. Pay attention to the port opening problem. You can find the information by yourself by using the yum installation method.