Rails 3 - ActiveRecord :: ConnectionNotEstablished

Question

Я получаю следующее сообщение об ошибке

ActiveRecord :: ConnectionNotEstablished

на новый созданный проект после того, как я изменил мой файл database.yml так:

development: 
    adapter: jdbc 
    driver: com.ibm.db2.jcc.DB2Driver 
    url: localhost:50000/devdb 
    host: localhost 
    port: 50000 
    database: devdb 
    username: db2inst1 
    password: mypass 

Это основа след:

activerecord (3.2.12) lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in `retrieve_connection' 
activerecord (3.2.12) lib/active_record/connection_adapters/abstract/connection_specification.rb:171:in `retrieve_connection' 
activerecord (3.2.12) lib/active_record/connection_adapters/abstract/connection_specification.rb:145:in `connection' 
activerecord (3.2.12) lib/active_record/query_cache.rb:67:in `call' 
activerecord (3.2.12) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call' 
actionpack (3.2.12) lib/action_dispatch/middleware/callbacks.rb:28:in `call' 
activesupport (3.2.12) lib/active_support/callbacks.rb:408:in `_run__850430336__call__306646959__callbacks' 
org/jruby/RubyBasicObject.java:1659:in `__send__' 
org/jruby/RubyKernel.java:2086:in `send' 
activesupport (3.2.12) lib/active_support/callbacks.rb:405:in `__run_callback' 
activesupport (3.2.12) lib/active_support/callbacks.rb:390:in `_run_call_callbacks' 
org/jruby/RubyBasicObject.java:1659:in `__send__' 
org/jruby/RubyKernel.java:2086:in `send' 
activesupport (3.2.12) lib/active_support/callbacks.rb:81:in `run_callbacks' 
actionpack (3.2.12) lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
actionpack (3.2.12) lib/action_dispatch/middleware/reloader.rb:65:in `call' 
actionpack (3.2.12) lib/action_dispatch/middleware/remote_ip.rb:31:in `call' 
actionpack (3.2.12) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call' 
actionpack (3.2.12) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call' 
railties (3.2.12) lib/rails/rack/logger.rb:32:in `call_app' 
railties (3.2.12) lib/rails/rack/logger.rb:16:in `call' 
activesupport (3.2.12) lib/active_support/tagged_logging.rb:22:in `tagged' 
railties (3.2.12) lib/rails/rack/logger.rb:16:in `call' 
actionpack (3.2.12) lib/action_dispatch/middleware/request_id.rb:22:in `call' 
rack (1.4.5) lib/rack/methodoverride.rb:21:in `call' 
rack (1.4.5) lib/rack/runtime.rb:17:in `call' 
activesupport (3.2.12) lib/active_support/cache/strategy/local_cache.rb:72:in `call' 
rack (1.4.5) lib/rack/lock.rb:15:in `call' 
actionpack (3.2.12) lib/action_dispatch/middleware/static.rb:62:in `call' 
railties (3.2.12) lib/rails/engine.rb:479:in `call' 
railties (3.2.12) lib/rails/application.rb:223:in `call' 
rack (1.4.5) lib/rack/content_length.rb:14:in `call' 
railties (3.2.12) lib/rails/rack/log_tailer.rb:17:in `call' 
rack (1.4.5) lib/rack/handler/webrick.rb:59:in `service' 
/home/gotqn/.rvm/rubies/jruby-1.7.2/lib/ruby/1.9/webrick/httpserver.rb:138:in `service' 
/home/gotqn/.rvm/rubies/jruby-1.7.2/lib/ruby/1.9/webrick/httpserver.rb:94:in `run' 
/home/gotqn/.rvm/rubies/jruby-1.7.2/lib/ruby/1.9/webrick/server.rb:191:in `start_thread' 

Не могли бы вы рассказать мне, что я могу попытаться исправить или помочь в понимании следа. Я буду благодарен за некоторые документы или учебник по пониманию следа, поскольку я новичок в рельсах.

Я использую:

1. Ubuntu 12,04 LTC
2. JRuby 1.7.2
3. Rails 3.2.12
4. DB2 C выразить 10,1

Answer 1

ошибка была из-за неправильного синтаксис, когда url был указан в файле database.yml. Это правильный путь:

development: 
    adapter: jdbc 
    driver: com.ibm.db2.jcc.DB2Driver 
    url: jdbc:db2://localhost:50000/devdb 
    host: localhost 
    port: 50000 
    database: devdb 
    username: db2inst1 
    password: mypass