# User Error during memcached integration **URL:** \ **Category:** Rails\ **Created:** [May 29, 2010, 7:35pm UTC](https://www.ruby-forum.com/t/user-error-during-memcached-integration/189362 "2010-05-29T19:35:31Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![rodney](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@rodney](https://www.ruby-forum.com/u/rodney)\ **Post date:** [May 29, 2010, 7:35pm UTC](https://www.ruby-forum.com/t/user-error-during-memcached-integration/189362/1 "2010-05-29T19:35:31Z")
Hello, I hope all is well. I am hoping someone can help me with a problem that I am certain is user error? The configuration details below work in all my other environments including integration, development and qa. However, the production servers give the following error: unable to find server during initialization. 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 # Below are the configuration details and stacktrace: config/environment.rb (the important parts) 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 innew’ 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 inbuild’ 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 ineach’ 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 inbuild’ 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 ininitialize’ 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 inrun\_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 inprocess’ 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 inrun’ 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 inrequire’ 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 ininitialize\_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 ininitialize\_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 instart’ 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 inspawn\_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 inspawn\_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 insynchronize’ 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 inspawn\_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 insend’ 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 instart\_synchronously’ 37 /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/bin/passenger- spawn-server 61