mysql - 由于 mysql2 或 mysql gems 无法在 Debian 上启动 Mongrel(或 Passenger)

Question

我最初将其发布在 super 用户上，但现在认为它应该放在这里......

我正在尝试将我的 RoR Web 应用程序移植到 DreamHost VPS。我已经从 1.8.7 升级了 VPS --> Ruby 1.9.2，并使用 Rails 3.0.1 和 mysql2 (0.2.6) gem。尝试启动 mongrel 时出现以下错误:

/usr/bin/ruby1.8: symbol lookup error: /home/USERNAME/.gems/gems/mysql2-0.2.6/lib/mysql2/mysql2.so: undefined symbol: rb_intern2

...所以我尝试使用 mysql (2.8.1) gem 代替，并收到以下错误:

wrong argument type Mysql (expected Struct) (TypeError)

0 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/mysql_adapter.rb 600 in real_connect'<br/> 1 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/mysql_adapter.rb 600 inconnect'
2 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/mysql_adapter.rb 164 in initialize'<br/> 3 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/mysql_adapter.rb 36 innew'
4 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/mysql_adapter.rb 36 in mysql_connection'<br/> 5 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb 230 insend'
6 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb 230 in new_connection'<br/> 7 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb 238 incheckout_new_connection'
8 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb 194 in checkout'<br/> 9 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb 190 inloop'
10 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb 190 in checkout'<br/> 11 /usr/lib/ruby/1.8/monitor.rb 242 insynchronize'
12 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb 189 in checkout'<br/> 13 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb 96 inconnection'
14 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb 318 in retrieve_connection'<br/> 15 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_specification.rb 97 inretrieve_connection'
16 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/connection_adapters/abstract/connection_specification.rb 89 in connection'<br/> 17 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/associations.rb 1804 increate_has_and_belongs_to_many_reflection'
18 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/associations.rb 1411 in has_and_belongs_to_many'<br/> 19 /home/USERNAME/.gems/gems/activerecord-3.0.1/lib/active_record/autosave_association.rb 137 inhas_and_belongs_to_many'
20 /home/USERNAME/portfoliofinearts.ca/farr/app/models/project.rb 3
21 /home/USERNAME/.gems/gems/activesupport-3.0.1/lib/active_support/dependencies.rb 239 in require'<br/> 22 /home/USERNAME/.gems/gems/activesupport-3.0.1/lib/active_support/dependencies.rb 239 inrequire'
23 /home/USERNAME/.gems/gems/activesupport-3.0.1/lib/active_support/dependencies.rb 227 in load_dependency'<br/> 24 /home/USERNAME/.gems/gems/activesupport-3.0.1/lib/active_support/dependencies.rb 239 inrequire'
25 /home/USERNAME/.gems/gems/activesupport-3.0.1/lib/active_support/dependencies.rb 346 in require_or_load'<br/> 26 /home/USERNAME/.gems/gems/activesupport-3.0.1/lib/active_support/dependencies.rb 300 independ_on'
27 /home/USERNAME/.gems/gems/activesupport-3.0.1/lib/active_support/dependencies.rb 216 in require_dependency'<br/> 28 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/engine.rb 138 ineager_load!'
29 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/engine.rb 137 in each'<br/> 30 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/engine.rb 137 ineager_load!'
31 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/engine.rb 135 in each'<br/> 32 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/engine.rb 135 ineager_load!'
33 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/application.rb 108 in eager_load!'<br/> 34 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/application/finisher.rb 41<br/> 35 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/initializable.rb 25 ininstance_exec'
36 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/initializable.rb 25 in run'<br/> 37 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/initializable.rb 50 inrun_initializers'
38 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/initializable.rb 49 in each'<br/> 39 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/initializable.rb 49 inrun_initializers'
40 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/application.rb 134 in initialize!'<br/> 41 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/application.rb 77 insend'
42 /home/USERNAME/.gems/gems/railties-3.0.1/lib/rails/application.rb 77 in method_missing'<br/> 43 /home/USERNAME/mydomain.com/test_app/config/environment.rb 10<br/> 44 /usr/lib/ruby/1.8/rubygems/custom_require.rb 31 ingem_original_require'
45 /usr/lib/ruby/1.8/rubygems/custom_require.rb 31 in require'<br/> 46 config.ru 3<br/> 47 /usr/lib/ruby/gems/1.8/gems/rack-1.2.1/lib/rack/builder.rb 46 ininstance_eval'
48 /usr/lib/ruby/gems/1.8/gems/rack-1.2.1/lib/rack/builder.rb 46 in initialize'<br/> 49 config.ru 1 innew'
50 config.ru 1

我更喜欢使用 mysql2，所以这是我正在寻找的首选解决方案，但我肯定会感谢对这两个问题的意见。

我在我的开发环境(Windows)中没有遇到类似的问题

Answer 1

您提到您正在运行 Ruby 1.9.2，但您的错误转储看起来正在运行 Ruby 1.8。我不确定这是否会导致问题，但这似乎是一个潜在的问题。

我会卸载 ruby​​1.8，看看它是否修复了任何问题。

sudo apt-get 删除 ruby​​1.8