最後更新: 2024-03-08

目錄

• Installation
•  

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Installation

 

Erlang

Before installing RabbitMQ, you must install a supported version of Erlang.

CentOS-derivative repositories provide Erlang versions that are typically out of date and
 cannot be used to run latest RabbitMQ releases.

Team RabbitMQ produces a package stripped down to only provide those components needed to run RabbitMQ.
(Zero-dependency Erlang from RabbitMQ)

Zero-dependency Erlang from RabbitMQ

URL=https://github.com/rabbitmq/erlang-rpm

mkdir /usr/src/rabbitmq
cd /usr/src/rabbitmq

LINK="$URL/releases/download/v21.3.8.21/erlang-21.3.8.21-1.el7.x86_64.rpm"

wget $LINK

rpm -i erlang-26.2.2-1.el7.x86_64.rpm

Test

# To switch to Erlang shell, you can type the following command.

erl

rabbitmq-server 要的 package

yum install socat logrotate -y

rabbitmq-server

rpm --import https://www.rabbitmq.com/rabbitmq-release-signing-key.asc

https://github.com/rabbitmq/rabbitmq-server

Version

• 3.12.13    # Requires Erlang 25
• 3.7          # 最後支援 RHEL 6, 7 的 Version (V3.7 要 Erlang 21.3)

rpm -Uvh rabbitmq-server-3.7.28-1.el7.noarch.rpm

systemctl enable rabbitmq-server --now

systemctl status rabbitmq-server

Checking

rabbitmq-diagnostics ping

rabbitmq-diagnostics status

rabbitmq-diagnostics cluster_status

rabbitmq-diagnostics environment

 

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Port

 

Checking

netstat -nlp | grep -beam -e epmd

346:tcp        0      0 0.0.0.0:25672           0.0.0.0:*               LISTEN      189585/beam.smp
750:tcp        0      0 0.0.0.0:4369            0.0.0.0:*               LISTEN      189626/epmd
1457:tcp6       0      0 :::5672                 :::*                    LISTEN      189585/beam.smp
1659:tcp6       0      0 :::4369                 :::*                    LISTEN      189626/epmd

beam.smp (5672)

By default, RabbitMQ will listen on port 5672 on all available interfaces.

/etc/rabbitmq/rabbitmq.conf

listeners.tcp.1 = 127.0.0.1:5672

systemctl restart rabbitmq-server

epmd (4369)

4369: epmd, a peer discovery service used by RabbitMQ nodes and CLI tools

/etc/rabbitmq/rabbitmq-env.conf

export ERL_EPMD_ADDRESS=127.0.0.1

distribution.listener (25672)

used for communication with other cluster members and CLI tools.

distribution.listener.interface  = 127.0.0.1
distribution.listener.port_range.min = 25672
distribution.listener.port_range.max = 25672

 

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Access Web Console

 

rabbitmq-plugins enable rabbitmq_management

chown -R rabbitmq:rabbitmq /var/lib/rabbitmq/

rabbitmqctl add_user admin StrongPassword

rabbitmqctl set_user_tags admin administrator

rabbitmqctl set_permissions -p / admin ".*" ".*" ".*"

http://Your_Server_IP:15672/

 

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Settings

 

/etc/rabbitmq/rabbitmq-env.conf

export RABBITMQ_NODENAME=rabbit@localhost

 

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rabbitmq limit memory usage

 

The RabbitMQ server detects the total amount of RAM installed in the computer on startup and
 when rabbitmqctl set_vm_memory_high_watermark fraction is executed.

By default, when the RabbitMQ server uses above 40% of the installed RAM,
 it raises a memory alarm and blocks all connections.

Once the memory alarm has cleared normal service resumes.
(e.g. due to the server paging messages to disk or delivering them to clients)

* The limit does not prevent RabbitMQ nodes from using more than the computed limit,
   it is merely the point at which publishers are throttled.

A value of 0 makes the memory alarm go off immediately and
    thus disables all publishing (this may be useful if you wish to disable publishing globally;
(use rabbitmqctl set_vm_memory_high_watermark 0).

To prevent the memory alarm from going off at all, set some high multiplier such as 100.

Configuring the Absolute Memory Limit (or Threshold)

vm_memory_high_watermark.absolute = 1024MiB

 

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