Message Queue ~ RabbitMQ.

Message Queue ~ RabbitMQ.

---

---

why～RabbitMQ？

common.

• RabbitMQ

• ActiveMQ

Apache produced. Small throughput. Choice from API, the cluster architecture approach.

• RocketMQ

• kafka

One of the top-level Apache project. Big Data. Data consistency is not good.

installation.

RabbitMQ based AMQPprotocol, erlanglanguage development.

• Official website: https: //www.rabbitmq.com/

• RabbitMQ 3.7.18

• erlang

Use YUM to install.

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

YUM configuration source.

[root@localhost ~]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# vim rabbitmq-erlang.repo

To use Erlang 22.x on CentOS 7:

# In /etc/yum.repos.d/rabbitmq_erlang.repo
[rabbitmq_erlang]
name=rabbitmq_erlang
baseurl=https://packagecloud.io/rabbitmq/erlang/el/7/$basearch
repo_gpgcheck=1
gpgcheck=1
enabled=1
# PackageCloud's repository key and RabbitMQ package signing key
gpgkey=https://packagecloud.io/rabbitmq/erlang/gpgkey
       https://dl.bintray.com/rabbitmq/Keys/rabbitmq-release-signing-key.asc
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crt
metadata_expire=300

[rabbitmq_erlang-source]
name=rabbitmq_erlang-source
baseurl=https://packagecloud.io/rabbitmq/erlang/el/7/SRPMS
repo_gpgcheck=1
gpgcheck=0
enabled=1
# PackageCloud's repository key and RabbitMQ package signing key
gpgkey=https://packagecloud.io/rabbitmq/erlang/gpgkey
       https://dl.bintray.com/rabbitmq/Keys/rabbitmq-release-signing-key.asc
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crt
metadata_expire=300

yum install erlang

[root@localhost tools_my]# rpm -ivh rabbitmq-server-3.7.18-1.el7.noarch.rpm
error: Failed dependencies:
socat is needed by rabbitmq-server-3.7.18-1.el7.noarch

yum install socat

[root@localhost tools_my]# rpm -ivh rabbitmq-server-3.7.18-1.el7.noarch.rpm

Configuration.

[root@localhost ~]# ls /etc/rabbitmq/
[root@localhost ~]#

[root@localhost ~]# find / -name rabbitmq.config.example
/usr/share/doc/rabbitmq-server-3.7.18/rabbitmq.config.example

[root@localhost ~]# cp /usr/share/doc/rabbitmq-server-3.7.18/rabbitmq.config.example /etc/rabbitmq/rabbitmq.config

The annotation release. (Comma should be removed).

 55    %% The default "guest" user is only permitted to access the server
 56    %% via a loopback interface (e.g. localhost).
 57    %% {loopback_users, [<<"guest">>]},
 58    %%
 59    %% Uncomment the following line if you want to allow access to the
 60    %% guest user from anywhere on the network.
 61    %% {loopback_users, []},

{loopback_users, []}