LionをPostgresqlに接続して、ssdブートドライブを使用する

Question

私はLionのレール開発でpostgresqlを使用しようとしています。私のマシンは現在、ソリッドステートからブートし、別のハードディスクに/ homeフォルダを保存するように設定されています。私は細かい

createuserは

コマンドに

を使用してPostgresのためのユーザーを作成することができるよしかし、ときに私は熊手

rake db:create 

を使用してDBを作成しようと、これまで私が手このエラー

サーバに接続できませんでした：Connection refusedサーバがローカルで を実行しており、Unixドメインソケット "/var/pgsql_socket/.s.PGSQL.5432"で接続を受け付けていますか？ /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:1076:in initialize' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:1076:in new ' /ボリューム/ライオン/ユーザー/ atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb：1076： connect' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:312:in ' /Volumes/2835： new' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in postgresql_connection ' /Volumes/Lion/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib /ユーザ/ atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb：304：in new_connection' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:323:in chec kout_new_connection ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:265:in block (2 levels) in checkout' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in ループ ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in block in checkout' /Volumes/Lion/Users/atbyrd/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in mon_synchronize ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:260:in checkout' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:162:in 接続 ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:409:in >>> create_databaseのレスキュー ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:54:in create_database' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:33:in ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:151'のブロック（5レベル）： in local_database?' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:33:in ブロック（4レベル） ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake ：19： each_value' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:19:in ブロック（3レベル）in ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake/task.rb:205:in call' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:205:in 実行中のブロック' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task。rb：200： each' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:200:in 実行 ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:158： block in invoke_with_call_chain' /Volumes/Lion/Users/atbyrd/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in mon_synchronizeの」 /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:151:in invoke_with_call_chain' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:144:in ボーク' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/application.rb:116:in invoke_task' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in ブロック（2レベル） in top_level ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in each' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in top_levelのブロック' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9 .2-p290/gems/rake-0.9.2.2/lib/rake/application.rb：133： standard_exception_handling' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:88:in top_level ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290 /gems/rake-0.9.2.2/lib/rake/application.rb:66:in block in run' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:133:in standard_exception_handling ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake -0.9.2.2/lib/rake/application.rb：63： run' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/bin/rake:33:in ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/bin/rake:19:in ''アダプタ '=>「postgresql」、 「エンコード」=>「ユニコード」、「データベース」=>「alpha_development」、「pool」=> 5、 「username」のデータベースを作成できませんでした= "alpha"、 "password" => nil}サーバーに接続できませんでした： Connecti on拒否サーバーがローカルで実行されており、Unixドメインソケット "/var/pgsql_socket/.s.PGSQL.5432"上で 接続を受け入れていますか？ /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:1076:in initialize' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:1076:in new ' /ボリューム/ライオン/ユーザー/ atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb：1076： connect' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:312:in ' /Volumes/2835： new' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in postgresql_connection ' /Volumes/Lion/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib /ユーザ/ atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb：304：in new_connection' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:323:in chec kout_new_connection ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:265:in block (2 levels) in checkout' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in ループ ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in block in checkout' /Volumes/Lion/Users/atbyrd/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in mon_synchronize ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:260:in checkout' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:162:in 接続 ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:409:in >>> create_databaseのレスキュー ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:54:in create_database' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:33:in ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:151'のブロック（5レベル）： ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9'の local_database?' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:33:in ブロック（4レベル）にあります。2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake：19： each_value' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:19:in ブロック（3レベル） ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby -1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb：205：in call' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:205:in 実行ブロック ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9 .2-p290/gems/rake-0.9.2.2/lib/rake/task.rb：200： each' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:200:in 実行 ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290 /gems/rake-0.9.2.2/lib/rake/task.rb:158:in block in invoke_with_call_chain' /Volumes/Lion/Users/atbyrd/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in mon_synchronize ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake -0.9.2.2/lib/rake/task.rb：151：in invoke_with_call_chain' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:144:in ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/racl/application.rb:116:in invoke_task' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in ブロック（2レベル）in top_level ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/application.rb:94:in each' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in top_levelのブロック' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/racl/application.rb:133:in standard_exception_handling' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:88:in top_level ' /Volumes /ライオン/ユーザー/ atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb：66： block in run' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:133:in standard_exception_handling ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb：63： run' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/bin/rake:33:in ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/bin/rake:19:in load' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/bin/rake:19:in ' {"adapter" => "postgresqlのデータベースを作成できませんでした"、""encoding" => "unicode"、 "database" => "alpha_test"、 "pool" => 5、 "username" => "alpha"、 "password" => nil}サーバに接続できませんでした： 接続が拒否されましたサーバーがローカルで実行されており、Unixドメインソケット "/var/pgsql_socket/.s.PGSQL.5432"に接続している を受け入れていますか？ /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:1076:in initialize' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:1076:in new ' /ボリューム/ライオン/ユーザー/ atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb：1076： connect' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:312:in ' /Volumes/2835： new' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in postgresql_connection ' /Volumes/Lion/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib /ユーザ/ atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb：304：in new_connection' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:323:in chec kout_new_connection ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:265:in block (2 levels) in checkout' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in ループ ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in block in checkout' /Volumes/Lion/Users/atbyrd/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in mon_synchronize ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:260:in checkout' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:162:in 接続 ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:409:in >>> create_databaseのレスキュー ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9。2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake：54： create_database' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:33:in ブロック（5レベル） ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby -19.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake：151： local_database?' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:33:in ブロック（4レベル） ' /Volumes/Lion/Users/atbyrd/.rvm/ボリューム/ Lion/Users/atbyrd/gems/ruby​​-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake：19： each_value' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railties/databases.rake:19:in ブロック（3レベル）の ' ' .rvm/gems/ruby​​-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb：205：in call' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:205:in 実行ブロック ' /Volumes/Lion/Users/atbyrd/.rvm /gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:200:in each' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:200:in 実行 ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:158:in block in invoke_with_call_chain' /Volumes/Lion/Users/atbyrd/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in mon_synchronize' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rak/task.rb:151:in invoke_with_call_chain' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:144:in 「 /Volumes/（2レベル）のブロック / invoke_task' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in ブロック（2つのレベル）のトップレベルでは、ブロック/レベル2 /ボリューム/ライオン/ユーザー/ atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb：94： each' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in top_levelのブロック ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby​​-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb：133：in standard_exception_handling' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:88:in top_level ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/ application.rb：66： block in run' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:133:in standard_exception_handling」で /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb： 63： run' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/bin/rake:33:in ' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/bin/rake:19:in load' /Volumes/Lion/Users/atbyrd/.rvm/gems/ruby-1.9.2-p290/bin/rake:19:in ' {adapter "= > "postgresql"、 "encoding" => "unicode"、 "database" => "alpha_production"、 "pool" => 5、 "username" => "alpha"、 "password" => nil}

Answer 1

問題はライオンやSSDとは関係ありません。

pgsqlが実行中かどうかを確認してください。

netstat -tan | grep LISTEN 

PostgreSQLはデフォルトで5432ポートでリッスンする必要があります。