# TIL-20210914

# Today

RabbitMQ Issue handle

# Content

문제상황 MQ HTML Client 상에서 Virtual host (Vhost)를 / 생성해도 NestJS MS가 인식하지 못하는 현상

# Error massge (HTML Client)

Virtual host / experienced an error on node rabbit@localhost and may be inaccessible 해당 Vhost를 생성하고 Admin user를 설정하더라도 Vhost Restart를 하지 못해서 접근이 불가능한 상황

# Error log

2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0> Unable to recover vhost <<"/">> data. Reason {error,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                               {{{badmatch,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                  {error,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                   {"/usr/local/var/lib/rabbitmq/mnesia/rabbit@localhost/msg_stores/vhosts/628WB79CIFDYO9LJI6DKMI09L/msg_store_transient/file_summary.ets",
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                    eacces}}},
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                 [{rabbit_msg_store,init,1,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                   [{file,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                     "src/rabbit_msg_store.erl"},
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                    {line,724}]},
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                  {gen_server2,init_it,6,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                   [{file,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                     "src/gen_server2.erl"},
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                    {line,565}]},
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                  {proc_lib,init_p_do_apply,3,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                   [{file,"proc_lib.erl"},
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                    {line,226}]}]},
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                {child,undefined,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                 msg_store_transient,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                 {rabbit_msg_store,start_link,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                  [msg_store_transient,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                   "/usr/local/var/lib/rabbitmq/mnesia/rabbit@localhost/msg_stores/vhosts/628WB79CIFDYO9LJI6DKMI09L",
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                   undefined,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                   {#Fun<rabbit_variable_queue.0.124157698>,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                    ok}]},
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                 transient,600000,worker,
2021-09-13 18:06:13.086926+09:00 [erro] <0.4063.0>                                                 [rabbit_msg_store]}}}

# solution

var/rabbitmq에 접근해 해당 키 값 (지금 상황에서는 628WB79CIFDYO9LJI6DKMI09L)을 가진 Directory를 삭제하고 다시 Vhost를 생성하면 정상적으로 Vhost가 작동함

# Conclution

Vhost 관련 설정등이 해당 Directory에 남으면서 /경로에 따라 생성되는 Directory가 정상적으로 생성되지 않아서 생기는 문제인 듯 하다.

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