RabbitMQ error: Virtual host / experienced an error on node rabbit@centos7 and may be inaccessible

直接通过

rabbitmq-server

启动RabbitMQ，控制台信息

2022-12-04 09:44:53.132784+08:00 [notice] <0.222.0> Logging: switching to configured handler(s); following messages may not be visible in this log output

  ##  ##      RabbitMQ 3.10.6
  ##  ##
  ##########  Copyright (c) 2007-2022 VMware, Inc. or its affiliates.
  ######  ##
  ##########  Licensed under the MPL 2.0. Website: https://rabbitmq.com

  Erlang:      23.3.4.11 [emu]
  TLS Library: OpenSSL - OpenSSL 1.0.2k-fips  26 Jan 2017

  Doc guides:  https://rabbitmq.com/documentation.html
  Support:     https://rabbitmq.com/contact.html
  Tutorials:   https://rabbitmq.com/getstarted.html
  Monitoring:  https://rabbitmq.com/monitoring.html

  Logs: /var/log/rabbitmq/[email protected]
        /var/log/rabbitmq/rabbit@centos7_upgrade.log
        <stdout>

  Config file(s): (none)

  Starting broker... completed with 4 plugins.

查看web页面

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 提示信息

Virtual host / experienced an error on node rabbit@centos7 and may be inaccessible

动态查看完整日志

tail -f -n 100 /var/log/rabbitmq/[email protected]

发现如下关键错误信息

2022-12-04 09:44:55.353814+08:00 [info] <0.440.0> Message store "628WB79CIFDYO9LJI6DKMI09L/msg_store_transient": using rabbit_msg_store_ets_index to provide index
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>   crasher:
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>     initial call: rabbit_msg_store:init/1
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>     pid: <0.440.0>
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>     registered_name: []
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>     exception exit: { {badmatch,
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>                          {error,
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>                              {"/var/lib/rabbitmq/mnesia/rabbit@centos7/msg_stores/vhosts/628WB79CIFDYO9LJI6DKMI09L/msg_store_transient/0.rdq",
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>                               eacces}}},
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>                      [{rabbit_msg_store,init,1,
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>                           [{file,"rabbit_msg_store.erl"},{line,732}]},
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>                       {gen_server2,init_it,6,
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>                           [{file,"gen_server2.erl"},{line,565}]},
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>                       {proc_lib,init_p_do_apply,3,
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>                           [{file,"proc_lib.erl"},{line,226}]}]}
2022-12-04 09:44:55.354276+08:00 [error] <0.440.0>       in function  gen_server2:init_it/6 (gen_server2.erl, line 608)

有个词

eacces：无存取权限 /创建指定类型的套接字失败 /文件或路径名中包含的目录不可访问

于是查看对应目录权限：

ll /var/lib/rabbitmq/mnesia/rabbit@centos7/msg_stores/vhosts/628WB79CIFDYO9LJI6DKMI09L/msg_store_transient/

[root@centos7 ~]# ll /var/lib/rabbitmq/mnesia/rabbit@centos7/msg_stores/vhosts/628WB79CIFDYO9LJI6DKMI09L/
总用量 20
drwxr-xr-x.  2 rabbitmq rabbitmq 4096 8月   6 13:56 msg_store_persistent
drwxr-xr-x.  2 root     root     4096 8月   6 13:56 msg_store_transient
drwxr-xr-x. 11 rabbitmq rabbitmq 4096 8月   6 12:54 queues
-rw-r--r--.  1 rabbitmq rabbitmq 5464 12月  4 09:44 recovery.dets
[root@centos7 ~]# ll /var/lib/rabbitmq/mnesia/rabbit@centos7/msg_stores/vhosts/628WB79CIFDYO9LJI6DKMI09L/msg_store_transient/
总用量 12
-rw-r--r--. 1 root root   0 8月   6 12:07 0.rdq
-rw-r--r--. 1 root root  61 8月   6 13:56 clean.dot
-rw-r--r--. 1 root root 604 8月   6 13:56 file_summary.ets
-rw-r--r--. 1 root root 530 8月   6 13:56 msg_store_index.ets

修改目录权限

chown -R rabbitmq:rabbitmq /var/lib/rabbitmq/mnesia/rabbit@centos7/msg_stores/vhosts/628WB79CIFDYO9LJI6DKMI09L/msg_store_transient/

重新启动RabbitMQ，可以看到处理之前因权限问题的一些错误提示，并汇总提示如下

2022-12-04 10:14:27.740710+08:00 [info] <0.435.0> Recovering 10 queues of type rabbit_classic_queue took 44ms

查看网页，也不再提示该错误信息。