Rails：致命：用戶密碼驗證失敗

Question

我在連接 Postgres 數據庫時遇到問題。 我為它創建了一個用戶（它從不提示我輸入密碼），所以我運行命令ALTER USER user_name WITH PASSWORD password來創建一個。 我在我的 Rails 項目的 config 目錄中的database.yml文件中設置了用戶和密碼。 它仍然告訴我我的身份驗證失敗（如我的頭銜），我不知道為什么。 我從這個鏈接的這個答案修改了我的pg_hba.conf文件。 我能想到的唯一能解決這個問題的方法就是讓我的用戶成為超級用戶。 但我想知道為什么如果不讓它成為超級用戶，這現在不起作用。 任何人有任何想法？

編輯：

=> Booting Thin
=> Rails 3.2.11 application starting in production on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
Exiting
/home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/postgresql_adapter.rb:1208:in `initialize': FATAL:  password authentication failed for user "crowdcode" (PG::Error)
FATAL:  password authentication failed for user "crowdcode"
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/postgresql_adapter.rb:1208:in `new'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/postgresql_adapter.rb:1208:in `connect'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/postgresql_adapter.rb:326:in `initialize'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in `new'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in `postgresql_connection'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:315:in `new_connection'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:325:in `checkout_new_connection'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:247:in `block (2 levels) in checkout'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `loop'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `block in checkout'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:239:in `checkout'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:102:in `block in connection'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:101:in `connection'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in `retrieve_connection'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_specification.rb:171:in `retrieve_connection'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_specification.rb:145:in `connection'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/model_schema.rb:308:in `clear_cache!'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/railtie.rb:97:in `block (2 levels) in <class:Railtie>'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:418:in `_run__898392718112352949__prepare__1631078305261036285__callbacks'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:405:in `__run_callback'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:385:in `_run_prepare_callbacks'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:81:in `run_callbacks'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/reloader.rb:74:in `prepare!'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/reloader.rb:48:in `prepare!'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/application/finisher.rb:47:in `block in <module:Finisher>'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:30:in `instance_exec'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:30:in `run'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:55:in `block in run_initializers'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:54:in `each'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:54:in `run_initializers'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/application.rb:136:in `initialize!'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/railtie/configurable.rb:30:in `method_missing'
    from /home/ubuntu/Git/crowdcode/config/environment.rb:5:in `<top (required)>'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:251:in `require'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:251:in `block in require'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:251:in `require'
    from /home/ubuntu/Git/crowdcode/config.ru:3:in `block in <main>'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize'
    from /home/ubuntu/Git/crowdcode/config.ru:in `new'
    from /home/ubuntu/Git/crowdcode/config.ru:in `<main>'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:40:in `eval'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:40:in `parse_file'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:200:in `app'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands/server.rb:46:in `app'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:304:in `wrapped_app'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:254:in `start'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands/server.rb:70:in `start'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands.rb:55:in `block in <top (required)>'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands.rb:50:in `tap'
    from /home/ubuntu/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

Answer 1

1. 讓你成為超級用戶：ALTER USER user_name WITH SUPERUSER;

2. 編輯文件 pg_hba.conf : set method from md5 in trust

類型數據庫用戶地址方法

IPv4 本地連接：托管所有 127.0.0.1/32 信任

IPv6 本地連接：host all all ::1/128 trust

………………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………………………………………

Answer 2

我在使用 PostgreSQL 數據庫處理 Rails 應用程序時遇到了這個問題。

數據庫用戶已經擁有我創建的數據庫的超級管理員權限，但我仍然遇到此錯誤：

F, [2020-10-23T08:04:06.031161 #8902] FATAL -- : [4229b10c-e16f-4f26-90cc-facd47b2088c] ActionView::Template::Error (FATAL:  password authentication failed for user "prod_user"
FATAL:  password authentication failed for user "prod_user"

這是我修復它的方法：

問題是為我的數據庫環境變量指定的prod_user的數據庫密碼在我的.env文件中不正確。

我不得不將其修改為正確的。

就這樣。

我希望這有幫助

Answer 3

就我而言，我發現pg_hba.conf文件中較晚的host權限規則行覆蓋了較早的local行。 我正確地將local線路配置為使用 md5 身份驗證，但host線路設置為ident ，我將其更改為md5

請注意，使用trust是一種不安全的方法，因此您不應在任何生產風格的部署中使用它。

Answer 4

就我而言，我遇到此錯誤是因為我連接到了錯誤的端口（5432 而不是 5433）。