之前采用源码的方式安装erlang,之后再来安装rabbitMQ，这种方式有一些复杂。现在参考官网，可以直接用rpm安装。本文对安装过程进行描述。
官方参考Installing on RPM-based Linux (RedHat Enterprise Linux, CentOS, Fedora, openSUSE)
1.rpm包下载
需要安装的操作系统信息：
[root@m161p114 ~]# lsb_release -a
LSB Version: :core-4.1-amd64:core-4.1-noarch:cxx-4.1-amd64:cxx-4.1-noarch:desktop-4.1-amd64:desktop-4.1-noarch:languages-4.1-amd64:languages-4.1-noarch:printing-4.1-amd64:printing-4.1-noarch
Distributor ID: CentOS
Description: CentOS Linux release 7.9.2009 (Core)
Release: 7.9.2009
Codename: Core
[root@m161p114 ~]#
本文选择最新版本的RabbitMQ 3.9.8。现在rabbitMQ的下载文件都放在了github。
由于操作系统是centos7,那么选择下载的版本为 rabbitmq-server-3.9.8-1.el7.noarch.rpm.
另外需要下载erlang,参考rabbitMQ和rabbitMQ的兼容关系：
RabbitMQ Erlang Version Requirements
erlang最低版本为23.2，在此选择了23.3.4.8版本。因为这个版本有支持el7的rpm包可下载。
erlang-rpm
下载的版本为：erlang-23.3.4.8-1.el7.x86_64.rpm
现在将这两个rpm上传到需要安装的服务的/opt/software目录。
2.rpm安装
首先要安装依赖包：
[root@m161p114 ~]# yum install -y socat
Loaded plugins: fastestmirror, langpacks
Determining fastest mirrors
* base: mirrors.aliyun.com
* centos-sclo-rh: mirrors.huaweicloud.com
* centos-sclo-sclo: mirrors.huaweicloud.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
base | 3.6 kB 00:00:00
centos-sclo-rh | 3.0 kB 00:00:00
centos-sclo-sclo | 3.0 kB 00:00:00
epel | 4.7 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/3): epel/x86_64/updateinfo | 1.0 MB 00:00:01
(2/3): epel/x86_64/primary_db | 7.0 MB 00:00:06
(3/3): updates/7/x86_64/primary_db | 12 MB 00:00:08
Resolving Dependencies
--> Running transaction check
---> Package socat.x86_64 0:1.7.3.2-2.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=================================================================================================================================================================================================================
Package Arch Version Repository Size
=================================================================================================================================================================================================================
Installing:
socat x86_64 1.7.3.2-2.el7 base 290 k
Transaction Summary
=================================================================================================================================================================================================================
Install 1 Package
Total download size: 290 k
Installed size: 1.1 M
Downloading packages:
socat-1.7.3.2-2.el7.x86_64.rpm | 290 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
Installing : socat-1.7.3.2-2.el7.x86_64 1/1
Verifying : socat-1.7.3.2-2.el7.x86_64 1/1
Installed:
socat.x86_64 0:1.7.3.2-2.el7
Complete!
erlang安装：
[root@m161p114 software]# cd /opt/software
[root@m161p114 software]# rpm -ivh erlang-23.3.4.8-1.el7.x86_64.rpm
warning: erlang-23.3.4.8-1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID cc4bbe5b: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:erlang-23.3.4.8-1.el7 ################################# [100%]
[root@m161p114 software]#
安装之后查看版本：
[root@m161p114 software]# erl
Erlang/OTP 23 [erts-11.2.2.7] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:1] [hipe]
Eshell V11.2.2.7 (abort with ^G)
erlang23安装成功。
rabbitMQ安装：
[root@m161p114 software]# rpm -ivh rabbitmq-server-3.9.8-1.el7.noarch.rpm
warning: rabbitmq-server-3.9.8-1.el7.noarch.rpm: Header V4 RSA/SHA512 Signature, key ID 6026dfca: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:rabbitmq-server-3.9.8-1.el7 ################################# [100%]
[root@m161p114 software]#
3.配置及启动rabbitmq
首先要检查host文件，在hosts文件中确保存在hostname对应的ip解析。
在本文中，增加：
192.168.161.114 m161p114
配置管理后台：
[root@m161p114 ~]# rabbitmq-plugins enable rabbitmq_management
Enabling plugins on node rabbit@m161p114:
rabbitmq_management
The following plugins have been configured:
rabbitmq_management
rabbitmq_management_agent
rabbitmq_web_dispatch
Applying plugin configuration to rabbit@m161p114...
The following plugins have been enabled:
rabbitmq_management
rabbitmq_management_agent
rabbitmq_web_dispatch
set 3 plugins.
Offline change; changes will take effect at broker restart.
之后，启动rabbitmq:
[root@m161p114 opt]# service rabbitmq-server start
Redirecting to /bin/systemctl start rabbitmq-server.service
rabbitmq启动完成。
增加用户：
[root@m161p114 opt]# rabbitmqctl add_user root 123456
Adding user "root" ...
Done. Don't forget to grant the user permissions to some virtual hosts! See 'rabbitmqctl help set_permissions' to learn more.
[root@m161p114 opt]# rabbitmqctl set_user_tags root administrator
Setting tags for user "root" to [administrator] ...
[root@m161p114 opt]#
至此，rabbitmq安装完成，可以用新增的用户，访问rabbitMQ:
http://192.168.161.114:15672
RabbitMQ 登陆
这样RabbitMQ就安装完毕，通过service rabbitmq-server 可以对rabbitmq进行启动和关闭。
4.遇到的一些常见的错误
4.1 端口被占用错误
启动报错:
[root@m161p114 ~]# service rabbitmq-server restart
Redirecting to /bin/systemctl restart rabbitmq-server.service
Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server.service" and "journalctl -xe" for details.
[root@m161p114 ~]# systemctl start rabbitmq-server
Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server.service" and "journalctl -xe" for details.
[root@m161p114 ~]# systemctl status rabbitmq-server.service
● rabbitmq-server.service - RabbitMQ broker
Loaded: loaded (/usr/lib/systemd/system/rabbitmq-server.service; disabled; vendor preset: disabled)
Active: activating (auto-restart) (Result: exit-code) since Mon 2021-11-01 14:54:05 CST; 9s ago
Process: 25478 ExecStart=/usr/sbin/rabbitmq-server (code=exited, status=1/FAILURE)
Main PID: 25478 (code=exited, status=1/FAILURE)
Status: "Standing by"
Nov 01 14:54:05 m161p114 systemd[1]: Failed to start RabbitMQ broker.
Nov 01 14:54:05 m161p114 systemd[1]: Unit rabbitmq-server.service entered failed state.
Nov 01 14:54:05 m161p114 systemd[1]: rabbitmq-server.service failed.
[root@m161p114 ~]# systemctl status rabbitmq-server.service
● rabbitmq-server.service - RabbitMQ broker
Loaded: loaded (/usr/lib/systemd/system/rabbitmq-server.service; disabled; vendor preset: disabled)
Active: activating (auto-restart) (Result: exit-code) since Mon 2021-11-01 14:56:45 CST; 1s ago
Process: 26366 ExecStart=/usr/sbin/rabbitmq-server (code=exited, status=1/FAILURE)
Main PID: 26366 (code=exited, status=1/FAILURE)
Status: "Standing by"
Nov 01 14:56:45 m161p114 systemd[1]: Failed to start RabbitMQ broker.
Nov 01 14:56:45 m161p114 systemd[1]: Unit rabbitmq-server.service entered failed state.
Nov 01 14:56:45 m161p114 systemd[1]: rabbitmq-server.service failed.
[root@m161p114 ~]# systemctl start rabbitmq-server
Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server.service" and "journalctl -xe" for details.
[root@m161p114 ~]# journalctl -xe
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {failed_to_start_child,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {ranch_embedded_sup,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {acceptor,{0,0,0,0,0,0,0,0},5672}},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {shutdown,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {failed_to_start_child,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {ranch_listener_sup,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {acceptor,{0,0,0,0,0,0,0,0},5672}},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {shutdown,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {failed_to_start_child,ranch_acceptors_sup,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {listen_error,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {acceptor,{0,0,0,0,0,0,0,0},5672},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: eaddrinuse}}}}}}},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {child,undefined,'rabbit_tcp_listener_sup_:::5672',
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {tcp_listener_sup,start_link,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: [{0,0,0,0,0,0,0,0},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: 5672,ranch_tcp,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: [inet6,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {backlog,128},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {nodelay,true},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {linger,{true,0}},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {exit_on_close,false}],
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: rabbit_connection_sup,[],
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {rabbit_networking,tcp_listener_started,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: [amqp,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: [{backlog,128},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {nodelay,true},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {linger,{true,0}},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {exit_on_close,false}]]},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {rabbit_networking,tcp_listener_stopped,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: [amqp,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: [{backlog,128},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {nodelay,true},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {linger,{true,0}},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: {exit_on_close,false}]]},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: 10,1,"TCP listener"]},
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: transient,infinity,supervisor,
Nov 01 14:57:16 m161p114 rabbitmq-server[26561]: [tcp_listener_sup]}}}}
Nov 01 14:57:17 m161p114 rabbitmq-server[26561]: {"init terminating in do_boot",{error,{could_not_start_listener,"::",5672,{{shutdown,{failed_to_start_child,{ranch_embedded_sup,{acceptor,{0,0,0,0,0,0,0,0},5672
Nov 01 14:57:17 m161p114 rabbitmq-server[26561]: init terminating in do_boot ({error,{could_not_start_listener,::,5672,{{shutdown,{_}},{child,undefined,rabbit_tcp_listener_sup_:::5672,{_},transient,infinity,su
启动rabbitmq,出现上述错误。
实际上这是端口被占用所致。rabbitmq使用的是5672端口。而这个服务器上由于安装过activeMQ,导致5672端口被占用。
[root@m161p114 usr]# netstat -an |grep 5672
tcp 0 0 0.0.0.0:5672 0.0.0.0:* LISTEN
[root@m161p114 usr]# lsof -i:5672
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
java 15085 root 139u IPv4 142285 0t0 TCP *:amqp (LISTEN)
[root@m161p114 usr]#
[root@m161p114 etc]# ps -aux |grep activemq
root 15085 0.1 5.6 4749504 450096 ? Sl Oct28 6:45 /bin/java -Xms64M -Xmx1G -Djava.util.logging.config.file=logging.properties -Djava.security.auth.login.config=/opt/apache-activemq-5.16.3//conf/login.config -Dcom.sun.management.jmxremote -Djava.awt.headless=true -Djava.io.tmpdir=/opt/apache-activemq-5.16.3//tmp -Dactivemq.classpath=/opt/apache-activemq-5.16.3//conf:/opt/apache-activemq-5.16.3//../lib/: -Dactivemq.home=/opt/apache-activemq-5.16.3/ -Dactivemq.base=/opt/apache-activemq-5.16.3/ -Dactivemq.conf=/opt/apache-activemq-5.16.3//conf -Dactivemq.data=/opt/apache-activemq-5.16.3//data -jar /opt/apache-activemq-5.16.3//bin/activemq.jar start
root 32118 0.0 0.0 112820 944 pts/0 S+ 15:14 0:00 grep --color=auto activemq
[root@m161p114 etc]#
可以看到，5672被activeMQ占用。虽然activeMQ使用的是61616端口，但是amqp服务还是会占用5672端口。
我们只需要关闭activeMQ,然后重启rabbitMQ即可。
4.2 增加用户报错
增加rabbitMQ 用户的过程中，出现如下错误：
[root@m161p114 etc]# rabbitmqctl add_user root 123456
Error: unable to perform an operation on node 'rabbit@m161p114'. Please see diagnostics information and suggestions below.
Most common reasons for this are:
* Target node is unreachable (e.g. due to hostname resolution, TCP connection or firewall issues)
* CLI tool fails to authenticate with the server (e.g. due to CLI tool's Erlang cookie not matching that of the server)
* Target node is not running
In addition to the diagnostics info below:
* See the CLI, clustering and networking guides on https://rabbitmq.com/documentation.html to learn more
* Consult server logs on node rabbit@m161p114
* If target node is configured to use long node names, don't forget to use --longnames with CLI tools
DIAGNOSTICS
===========
attempted to contact: [rabbit@m161p114]
rabbit@m161p114:
* connected to epmd (port 4369) on m161p114
* epmd reports: node 'rabbit' not running at all
no other nodes on m161p114
* suggestion: start the node
Current node details:
* node name: 'rabbitmqcli-242-rabbit@m161p114'
* effective user's home directory: /var/lib/rabbitmq
* Erlang cookie hash: sLsnKdrzrUtqBTBdswbG6g==
[root@m161p114 etc]#
这需要将rabbitMQ server启动。否则将会出现上述错误。
