Rails crashes over night?


#1

I’m running Ruby on Rails on Fedora Core 4 with lighttpd and fastcgi. I
also used the login generator (don’t know if relevant). I have the
following problem: At day time I work on the server and create/modify
ruby files on the server, all pages work fine. Than the next day I want
to open de server I get the error at the end of this message (on all
pages, including non protected).

If I restart lighttpd everything works again. Any ideas on how to fix
this? This happens every day…

Thanks,

Stephan

=========================================================================================================================
NoMethodError in Test#test

You have a nil object when you didn’t expect it!
You might have expected an instance of Array.
The error occured while evaluating nil.[]

RAILS_ROOT: /home/stephan/members/public/…/config/…
Application Trace | Framework Trace | Full Trace

/usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/mysql_adapter.rb:322:in
connect' /usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/mysql_adapter.rb:174:inreconnect!’
/usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/abstract/connection_specification.rb:103:in
retrieve_connection' /usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/abstract/connection_specification.rb:20:inconnection’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/benchmarking.rb:85:in
active_record_runtime' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/benchmarking.rb:72:inperform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/rescue.rb:82:in
perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/base.rb:369:inprocess_without_session_management_support’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/session_management.rb:116:in
process' /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/dispatcher.rb:38:indispatch’
/usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:141:in
process_request' /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:53:inprocess!’
/usr/lib/site_ruby/1.8/fcgi.rb:600:in each_cgi' /usr/lib/site_ruby/1.8/fcgi.rb:117:insession’
/usr/lib/site_ruby/1.8/fcgi.rb:104:in each_request' /usr/lib/site_ruby/1.8/fcgi.rb:36:ineach’
/usr/lib/site_ruby/1.8/fcgi.rb:597:in each_cgi' /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:52:inprocess!’
/usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:22:in
`process!’
/home/stephan/members/public/dispatch.fcgi:24

/usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/mysql_adapter.rb:322:in
connect' /usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/mysql_adapter.rb:174:inreconnect!’
/usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/abstract/connection_specification.rb:103:in
retrieve_connection' /usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/abstract/connection_specification.rb:20:inconnection’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/benchmarking.rb:85:in
active_record_runtime' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/benchmarking.rb:72:inperform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/rescue.rb:82:in
perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/base.rb:369:inprocess_without_session_management_support’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/session_management.rb:116:in
process' /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/dispatcher.rb:38:indispatch’
/usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:141:in
process_request' /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:53:inprocess!’
/usr/lib/site_ruby/1.8/fcgi.rb:600:in each_cgi' /usr/lib/site_ruby/1.8/fcgi.rb:117:insession’
/usr/lib/site_ruby/1.8/fcgi.rb:104:in each_request' /usr/lib/site_ruby/1.8/fcgi.rb:36:ineach’
/usr/lib/site_ruby/1.8/fcgi.rb:597:in each_cgi' /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:52:inprocess!’
/usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:22:in
`process!’
/home/stephan/members/public/dispatch.fcgi:24

/usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/mysql_adapter.rb:322:in
connect' /usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/mysql_adapter.rb:174:inreconnect!’
/usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/abstract/connection_specification.rb:103:in
retrieve_connection' /usr/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/connection_adapters/abstract/connection_specification.rb:20:inconnection’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/benchmarking.rb:85:in
active_record_runtime' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/benchmarking.rb:72:inperform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/rescue.rb:82:in
perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/base.rb:369:inprocess_without_session_management_support’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.1/lib/action_controller/session_management.rb:116:in
process' /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/dispatcher.rb:38:indispatch’
/usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:141:in
process_request' /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:53:inprocess!’
/usr/lib/site_ruby/1.8/fcgi.rb:600:in each_cgi' /usr/lib/site_ruby/1.8/fcgi.rb:117:insession’
/usr/lib/site_ruby/1.8/fcgi.rb:104:in each_request' /usr/lib/site_ruby/1.8/fcgi.rb:36:ineach’
/usr/lib/site_ruby/1.8/fcgi.rb:597:in each_cgi' /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:52:inprocess!’
/usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/fcgi_handler.rb:22:in
`process!’
/home/stephan/members/public/dispatch.fcgi:24

Request

Parameters: None

Show session dump

:return_to: /teamuser/list
flash: !map:ActionController::Flash::FlashHash {}

Response
Headers: {“Status”=>“200 OK”, “cookie”=>[], “Cache-Control”=>“no-cache”}


#2

http://lists.rubyonrails.org/mailman/listinfo/rails

Tsume


#3

I had a similar problem under Apache and FastCGI. The MySQL connection
would time out after a few hours of inactivity, but Rails would not let
go of it. The next time I tried to hit a page, I would get an error
like yours. I fixed it by increasing the MySQL timeout and by
decreasing the amount of time the FastCGI processes hang around.

Hope that helps!