Rails，Passenger和Memcached:初始化期间无法找到服务器

本文介绍了Rails，Passenger和Memcached:初始化期间无法找到服务器的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我希望有人可以解决我确定是用户错误的问题.

I hope someone can help me with a problem that I am certain is a user error.

下面的配置详细信息可用于我的所有其他环境，包括集成，开发和质量保证.但是，生产服务器会出现以下错误:

The configuration details below work in all my other environments including integration, development and qa. However, the production servers give the following error:

<ActionController::Session::MemCacheStore:0x2b45f6acb248> unable to find server during initialization.

当我从有问题的服务器上远程登录到memcached框并运行"stats"时，我得到:

When I telnet to the memcached box from the server having the problem and run 'stats', I get:

STAT pid 16136 STAT uptime 7398638 STAT time 1275059978 STAT version 1.2.8 STAT pointer_size 64 STAT rusage_user 7.085922 STAT rusage_system 13.275981 STAT curr_items 10878 STAT total_items 11441 STAT bytes 2020180 STAT curr_connections 5 STAT total_connections 306 STAT connection_structures 11 STAT cmd_flush 0 STAT cmd_get 457326 STAT cmd_set 11441 STAT get_hits 412184 STAT get_misses 45142 STAT evictions 0 STAT bytes_read 22600329 STAT bytes_written 53036649 STAT limit_maxbytes 30064771072 STAT threads 5 STAT accepting_conns 1 STAT listen_disabled_num 0

下面是配置详细信息和堆栈跟踪.

Below are the configuration details and stacktrace.

config.action_controller.session_store = :mem_cache_store config.gem "memcache-client", :lib => 'memcache'

config/environments/production.rb:

config.cache_store = :mem_cache_store require 'memcache' # Caching # Memcached configuration memcache_options = { :c_threshold => 100_000, :compression => true, :debug => false, :namespace => 'gucci', :readonly => false, :urlencode => false, :multithread => true } CACHE = MemCache.new memcache_options CACHE.servers = ['10.x.x.x:11211']

Stacktrace:

/var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/session/mem_cache_store.rb 20 in `initialize' 1 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/middleware_stack.rb 72 in `new' 2 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/middleware_stack.rb 72 in `build' 3 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/middleware_stack.rb 116 in `build' 4 /var/www/oro/production/releases/20100528130253/vendor/rails/activesupport/lib/active_support/inflector.rb 361 in `inject' 5 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/middleware_stack.rb 116 in `each' 6 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/middleware_stack.rb 116 in `inject' 7 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/middleware_stack.rb 116 in `build' 8 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/dispatcher.rb 130 in `build_middleware_stack' 9 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/dispatcher.rb 81 in `initialize' 10 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/dispatcher.rb 51 in `new' 11 /var/www/oro/production/releases/20100528130253/vendor/rails/actionpack/lib/action_controller/dispatcher.rb 51 in `run_prepare_callbacks' 12 /var/www/oro/production/releases/20100528130253/vendor/rails/railties/lib/initializer.rb 631 in `prepare_dispatcher' 13 /var/www/oro/production/releases/20100528130253/vendor/rails/railties/lib/initializer.rb 185 in `process' 14 /var/www/oro/production/releases/20100528130253/vendor/rails/railties/lib/initializer.rb 113 in `send' 15 /var/www/oro/production/releases/20100528130253/vendor/rails/railties/lib/initializer.rb 113 in `run' 16 /var/www/oro/production/releases/20100528130253/config/environment.rb 29 17 /usr/local//lib/ruby/site_ruby/1.8/rubygems/custom_require.rb 31 in `gem_original_require' 18 /usr/local//lib/ruby/site_ruby/1.8/rubygems/custom_require.rb 31 in `require' 19 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/railz/application_spawner.rb 303 in `preload_application' 20 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/railz/application_spawner.rb 252 in `initialize_server' 21 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/utils.rb 255 in `report_app_init_status' 22 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/railz/application_spawner.rb 237 in `initialize_server' 23 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb 194 in `start_synchronously' 24 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb 163 in `start' 25 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/railz/application_spawner.rb 213 in `start' 26 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb 262 in `spawn_rails_application' 27 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server_collection.rb 126 in `lookup_or_add' 28 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb 256 in `spawn_rails_application' 29 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server_collection.rb 80 in `synchronize' 30 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server_collection.rb 79 in `synchronize' 31 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb 255 in `spawn_rails_application' 32 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb 154 in `spawn_application' 33 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb 287 in `handle_spawn_application' 34 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb 352 in `__send__' 35 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb 352 in `main_loop' 36 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb 196 in `start_synchronously' 37 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/bin/passenger-spawn-server 61

推荐答案

对我来说，我的memcache守护进程没有监听127.0.0.1，而是监听本地主机.从初始化文件中删除-l localhost选项后，它可以正常运行. (默认为在所有设备上监听.)

For me it turned out, that my memcache daemon did not listen to 127.0.0.1 but to localhost. After removing the -l localhost option from the init file it worked perfectly. (Default is to listen on all devices.)