<p></p>
<p dir="auto">I tried to simulate a "database_offline" situation by adding the following line to settings.local.yml:</p>
<pre><code>status: "database_offline"
</code></pre>
<p dir="auto">Unfortunately, the server would no longer come up after this change, and prints out a lengthy stack trace instead:</p>
<pre><code> 66: from bin/rails:4:in `<main>'
        65: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        64: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        63: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/commands.rb:18:in `<main>'
        62: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/command.rb:48:in `invoke'
        61: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/command/base.rb:87:in `perform'
        60: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
        59: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
        58: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
        57: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/commands/server/server_command.rb:134:in `perform'
        56: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/commands/server/server_command.rb:134:in `tap'
        55: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/commands/server/server_command.rb:143:in `block in perform'
        54: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/commands/server/server_command.rb:36:in `start'
        53: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/commands/server/server_command.rb:76:in `log_to_stdout'
        52: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/server.rb:422:in `wrapped_app'
        51: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/server.rb:249:in `app'
        50: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/server.rb:349:in `build_app_and_options_from_config'
        49: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/builder.rb:66:in `parse_file'
        48: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/builder.rb:105:in `load_file'
        47: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/builder.rb:116:in `new_from_string'
        46: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/builder.rb:116:in `eval'
        45: from config.ru:3:in `block in <main>'
        44: from config.ru:3:in `require_relative'
        43: from /home/mmd/openstreetmap-website/config/environment.rb:5:in `<main>'
        42: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/application.rb:372:in `initialize!'
        41: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/initializable.rb:60:in `run_initializers'
        40: from /usr/lib/ruby/2.7.0/tsort.rb:205:in `tsort_each'
        39: from /usr/lib/ruby/2.7.0/tsort.rb:226:in `tsort_each'
        38: from /usr/lib/ruby/2.7.0/tsort.rb:347:in `each_strongly_connected_component'
        37: from /usr/lib/ruby/2.7.0/tsort.rb:347:in `call'
        36: from /usr/lib/ruby/2.7.0/tsort.rb:347:in `each'
        35: from /usr/lib/ruby/2.7.0/tsort.rb:349:in `block in each_strongly_connected_component'
        34: from /usr/lib/ruby/2.7.0/tsort.rb:431:in `each_strongly_connected_component_from'
        33: from /usr/lib/ruby/2.7.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
        32: from /usr/lib/ruby/2.7.0/tsort.rb:228:in `block in tsort_each'
        31: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/initializable.rb:61:in `block in run_initializers'
        30: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/initializable.rb:32:in `run'
        29: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/initializable.rb:32:in `instance_exec'
        28: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.3/lib/rails/application/finisher.rb:72:in `block in <module:Finisher>'
        27: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/reloader.rb:88:in `prepare!'
        26: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:106:in `run_callbacks'
        25: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:595:in `invoke_before'
        24: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:595:in `each'
        23: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:595:in `block in invoke_before'
        22: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:200:in `block in halting'
        21: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:686:in `block in default_terminator'
        20: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:686:in `catch'
        19: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:687:in `block (2 levels) in default_terminator'
        18: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:199:in `block (2 levels) in halting'
        17: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:445:in `block in make_lambda'
        16: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/callbacks.rb:445:in `instance_exec'
        15: from /home/mmd/openstreetmap-website/config/initializers/doorkeeper.rb:4:in `block in <main>'
        14: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/doorkeeper-5.5.4/lib/doorkeeper/config.rb:28:in `configure'
        13: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/doorkeeper-5.5.4/lib/doorkeeper/config.rb:57:in `setup_application_owner'
        12: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/doorkeeper-5.5.4/lib/doorkeeper/orm/active_record.rb:32:in `initialize_application_owner!'
        11: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/doorkeeper-5.5.4/lib/doorkeeper/orm/active_record.rb:40:in `lazy_load'
        10: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/lazy_load_hooks.rb:42:in `on_load'
         9: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/lazy_load_hooks.rb:42:in `each'
         8: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/lazy_load_hooks.rb:43:in `block in on_load'
         7: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/lazy_load_hooks.rb:66:in `execute_hook'
         6: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/lazy_load_hooks.rb:61:in `with_execution_control'
         5: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/lazy_load_hooks.rb:71:in `block in execute_hook'
         4: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/lazy_load_hooks.rb:71:in `class_eval'
         3: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/doorkeeper-5.5.4/lib/doorkeeper/orm/active_record.rb:35:in `block in initialize_application_owner!'
         2: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/doorkeeper-5.5.4/lib/doorkeeper/config.rb:465:in `application_model'
         1: from /home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/core_ext/string/inflections.rb:74:in `constantize'
/home/mmd/openstreetmap-website/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.3/lib/active_support/inflector/methods.rb:280:in `constantize': uninitialized constant Oauth2Application (NameError)
Did you mean?  Oauth2ApplicationsController
</code></pre>

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