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Key: JRUBY-2303
Type: Bug Bug
Status: Closed Closed
Resolution: Not A Bug
Priority: Minor Minor
Assignee: Ola Bini
Reporter: Sergey Vidyuk
Votes: 1
Watchers: 3
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JRuby

JRuby on Rails raise an exception while connecting to database throw socket

Created: 20/Mar/08 01:39 PM   Updated: 10/Sep/08 06:45 PM   Resolved: 19/Aug/08 11:06 AM
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Component/s: None
Affects Version/s: JRuby 1.1RC3
Fix Version/s: None

Time Tracking:
Not Specified

Environment:
Ubuntu Hardy Heron(Debian lenny/sid)
Linux ss 2.6.24-12-386 #1 Wed Mar 12 22:30:29 UTC 2008 i686 GNU/Linux
Rails 1.2.3-6
mysql Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (i486) using readline 5.2


 Description  « Hide

Start petstore from thoughtworks with default configuration:
jruby-1.1RC3/bin/jruby -J-server script/server -e production
Test url with ab:
ab -c 1 -n 1000 http://localhost:3000/shop/viewCategory.shtml?category=DOGS
All requests will raise following exception:
---------------------------------
EMULTIHOP (Reserved)
petstore/trunk/vendor/rails/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb:389:in `connect'
petstore/trunk/vendor/rails/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb:152:in `initialize'
petstore/trunk/vendor/rails/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb:82:in `new'
petstore/trunk/vendor/rails/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb:82:in `mysql_connection'
petstore/trunk/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb:262:in `connection='
petstore/trunk/vendor/rails/activerecord/lib/active_record/query_cache.rb:54:in `connection='
petstore/trunk/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb:230:in `retrieve_connection'
petstore/trunk/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb:78:in `connection'
petstore/trunk/vendor/rails/activerecord/lib/active_record/base.rb:763:in `columns'
petstore/trunk/vendor/rails/activerecord/lib/active_record/base.rb:771:in `columns_hash'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/session/active_record_store.rb:105:in `setup_sessid_compatibility!'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/session/active_record_store.rb:79:in `find_by_session_id'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/session/active_record_store.rb:283:in `initialize'
petstore/trunk/vendor/rails/activerecord/lib/active_record/base.rb:867:in `silence'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/session/active_record_store.rb:283:in `initialize'
jruby-1.1RC3/lib/ruby/1.8/cgi/session.rb:273:in `new'
jruby-1.1RC3/lib/ruby/1.8/cgi/session.rb:273:in `initialize'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/cgi_process.rb:136:in `new'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/cgi_process.rb:136:in `session'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/cgi_process.rb:168:in `stale_session_check!'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/cgi_process.rb:120:in `session'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/base.rb:1058:in `assign_shortcuts'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/flash.rb:140:in `assign_shortcuts_with_flash'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/base.rb:429:in `process'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/filters.rb:684:in `process_with_filters'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/session_management.rb:114:in `process_with_session_management_support'
petstore/trunk/vendor/rails/actionpack/lib/action_controller/base.rb:334:in `process'
petstore/trunk/vendor/rails/railties/lib/dispatcher.rb:41:in `dispatch'
petstore/trunk/vendor/rails/railties/lib/webrick_server.rb:113:in `handle_dispatch'
petstore/trunk/vendor/rails/railties/lib/webrick_server.rb:79:in `service'
jruby-1.1RC3/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
jruby-1.1RC3/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
jruby-1.1RC3/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
:1:in `start'

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[ Permalink | « Hide ]
Khaled Agrama added a comment - 31/Mar/08 04:51 PM

Running into this too. Anyone know of a workaround?


[ Permalink | « Hide ]
kristian meier added a comment - 06/Apr/08 12:10 AM

I did see the same error, which disappeared when I used jdbcmysql adapter (database.yaml). maybe you have the same misconfiguration.


[ Permalink | « Hide ]
Mike McKinney added a comment - 01/May/08 12:06 PM

getting same thing... trying to test without the jdbc drivers. as noted, it's minor, but definitely an issue. connecting to mysql with socket defined, works in MRI... hitting via console.


[ Permalink | « Hide ]
Ola Bini added a comment - 01/May/08 01:43 PM

This is because it tries to use sockets to communicate, which doesn't always work. You need to make sure there is no socket line in the configuration for the database.


[ Permalink | « Hide ]
Ola Bini added a comment - 19/Aug/08 11:06 AM

This is a configuration error in the database settings for the app, as noted in my comment above.
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