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Rails - Postgres - impossibile connettersi al server: Connessione rifiutata (PG :: ConnectionBad)

2013-11-04 17 views
5

Ieri ho installato Postgres e pgAdminIII, tutto ha funzionato correttamente, ma dopo averlo ricaricato ha smesso di funzionare. Messaggio di errore dopo rails server ho:Rails - Postgres - impossibile connettersi al server: Connessione rifiutata (PG :: ConnectionBad)

=> Booting Thin 
=> Rails 3.2.13 application starting in development on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 
Exiting 
/home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:1216:in `initialize': could not connect to server: Connection refused (PG::ConnectionBad) 
     Is the server running on host "localhost" (127.0.0.1) and accepting 
     TCP/IP connections on port 5432? 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:1216:in `new' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:1216:in `connect' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:324:in `initialize' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in `new' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in `postgresql_connection' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:315:in `new_connection' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:325:in `checkout_new_connection' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:247:in `block (2 levels) in checkout' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `loop' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `block in checkout' 
     from /home/home/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:239:in `checkout' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:102:in `block in connection' 
     from /home/home/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:101:in `connection' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in `retrieve_connection' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb:171:in `retrieve_connection' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb:145:in `connection' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/railtie.rb:88:in `block in <class:Railtie>' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing' 
     from /home/home/Projects/mostdance/config/environment.rb:5:in `<top (required)>' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `block in require' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require' 
     from /home/home/Projects/mostdance/config.ru:3:in `block in <main>' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize' 
     from /home/home/Projects/mostdance/config.ru:in `new' 
     from /home/home/Projects/mostdance/config.ru:in `<main>' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.4.5/lib/rack/builder.rb:40:in `eval' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.4.5/lib/rack/builder.rb:40:in `parse_file' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.4.5/lib/rack/server.rb:200:in `app' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/commands/server.rb:46:in `app' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.4.5/lib/rack/server.rb:304:in `wrapped_app' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.4.5/lib/rack/server.rb:254:in `start' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/commands/server.rb:70:in `start' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/commands.rb:55:in `block in <top (required)>' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/commands.rb:50:in `tap' 
     from /home/home/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.2.13/lib/rails/commands.rb:50:in `<top (required)>' 
     from script/rails:6:in `require' 
     from script/rails:6:in `<main>'

Questo è il mio database.yml di file:

development: 
    host: localhost 
    adapter: postgresql 
    encoding: unicode 
    database: mydb 
    pool: 5 
    timeout: 5000 
    username: postgres 
    password: password 
    min_messages: WARNING 

test: 
    host: localhost 
    adapter: sqlite3 
    database: db/test.sqlite3 
    pool: 5 
    timeout: 5000 

production: 
    adapter: postgresql 
    encoding: unicode 
    database: mydb 
    pool: 5 
    timeout: 5000 
    username: postgres 
    password: password 
    host: 127.0.0.1 
    port: 5432 
    min_messages: WARNING

Inoltre si tenta di eseguire Postgres del server:

su postgres /etc/init.d/postgresql start 

Password: 
* Starting PostgreSQL 9.1 database server                                      * Use of uninitialized value $info{"pgdata"} in -d at /usr/bin/pg_ctlcluster line 331. 
Use of uninitialized value $info{"pgdata"} in concatenation (.) or string at /usr/bin/pg_ctlcluster line 332. 
Error: is not accessible or does not exist

Anche io non lo so perché, ma ora rails server metti questo errore:

=> Booting Thin 
=> Rails 3.2.13 application starting in development on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 
Exiting 
/home/home/.rvm/gems/ruby-1.9.3-p448/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:1216:in `initialize': FATAL: Peer authentication failed for user "postgres" (PG::ConnectionBad)

Per favore, aiutatemi! Se avete bisogno di maggiori informazioni - scrivete nei commenti e aggiornerò la mia domanda

fonte

2013-11-04 dshevc93

+0

Se il server Postgres non è stato avviato o riavviato, il che probabilmente viene fornito dal messaggio _I server in esecuzione ..., vedere i registri del server Postgres per i messaggi di errore. –

+2

Il problema è con PostgreSQL piuttosto che Rails. Il messaggio di errore che si ottiene quando si tenta di avviare il server di database fa sembrare che uno degli script di avvio sia stato modificato e interrotto o che il database non sia stato inizializzato. Forse riformulare la domanda intorno all'errore del database? –

+0

Vedere anche https://stackoverflow.com/questions/19828385/pgconnectionbad-could-not-connect-to-server-connection-refused – Kevin

risposta

5

Quando ho avuto questo problema in passato ci sono spesso alcune cose che posso fare per farlo funzionare, molte sembrano semplici, ma io 'm potente smemorati -

a volte non ho fatto creato il DB dopo il passaggio a postgres

bundle exec rake db:create

e quindi ottenere tutti i miei tavoli in là -

bundle exec rake db:migrate

altre volte ho bisogno di raddoppiare controllo e assicurarsi che la gemma PG è installato

gem install pg

fonte

2014-01-08 02:50:09

0

Se siete su Mac. quindi prova a reinstallare Postgresapp e poi a riavviare tutto. Assicurati di importare di nuovo il database.

Se si utilizza Linux, reinstallare Postgres e riavviare tutto.

fonte

2014-01-19 09:56:25 Gaurav

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