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POStange random crashes with Rails 3.1 in production
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  1. POStange random crashes with Rails 3.1 in production
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    copied!<p>I see some stange random crashes with my brand new Rails 3.1 rc5 application running in production mode. The backend is nginx with 3 thin instances.</p> <pre><code>[Exception] users#show (NoMethodError) "undefined method `text?' for nil:NilClass" undefined method `text?' for nil:NilClass  activerecord (3.1.0.rc5) lib/active_record/validations/uniqueness.rb:57:in `build_relation' </code></pre> <p>I turned on log: debug. However the only information is "Internal Server Error" Anyone seen this before? Identity map is turned om...</p> <p>If I restart the thin, Rails will run without problems for a few hours.</p> <p><strong>Update1:</strong> Looks like it is pretty much all my controller actions that generate this error randomly. This morning I got an email with the error above. If I follow the link, the page is generated with no problems.</p> <p>I was wondering if this issue somehow could be related to problems loading the User from a cookie?</p> <pre><code>class ApplicationController &lt; ActionController::Base protect_from_forgery layout "content_with_sidebar" before_filter :system rescue_from CanCan::AccessDenied do |exception| flash[:warning] = "Ingen adgang!" redirect_to root_url end def system if current_user unless current_user.email_verified == "t" flash[:warning] = 'Please activate your account.' end current_user.last_seen = Time.now current_user.save # &lt;--- line 18 @new_messages = Message.new_messages(current_user).count end end helper_method :current_user private def current_user if cookies[:auth_token] @current_user ||= User.find_by_auth_token!(cookies[:auth_token]) end end end </code></pre> <p><strong>Code Example from Users#Show</strong></p> <pre><code>class UsersController &lt; ApplicationController before_filter :ensure_current_user_url, :only =&gt; :show load_and_authorize_resource def ensure_current_user_url @user = User.find(params[:id].downcase) redirect_to @user, :status =&gt; :moved_permanently unless @user.friendly_id_status.best? end def show if params[:do] == "guestbook" @comment = @user.comments.new @comments = @user.comments.includes(:author).order("created_at DESC").all(:limit =&gt; 5) else @recent_comments = @user.comments(:order =&gt; "created_at DESC") end @arts = @user.arts.order("created_at desc").includes([:author, :category]).page(params[:page]).per(24) render :layout =&gt; "content_with_sidebar_whitebox" end </code></pre> <p><strong>Update2</strong> This is the information I got with the debug added.</p> <pre><code>************** username ************** ["id", "username", "email", "email_verified", "birthday", "firstname", "lastname", "phone", "website", "profile", "last_seen", "administrator", "cached_slug", "password_salt", "crypted_password", "avatar", "avatar_cache", "comments_count", "arts_count", "auth_token", "account_activation_token", "account_activation_sent_at", "password_reset_token", "password_reset_sent_at", "created_at", "updated_at", "cheapest", "most_expensive"] ************** email ************** ["id", "username", "email", "email_verified", "birthday", "firstname", "lastname", "phone", "website", "profile", "last_seen", "administrator", "cached_slug", "password_salt", "crypted_password", "avatar", "avatar_cache", "comments_count", "arts_count", "auth_token", "account_activation_token", "account_activation_sent_at", "password_reset_token", "password_reset_sent_at", "created_at", "updated_at", "cheapest", "most_expensive"] </code></pre> <p>This is a full stack trace from a crash this morning. </p> <pre><code>Started GET "/messages" for filtered-ip at 2011-08-15 12:13:17 -0400 Processing by MessagesController#index as HTML User Load (1.5ms) SELECT "users".* FROM "users" WHERE "users"."auth_token" = '380e8b776cb8e3c5fd7d8b777b6d2073' ORDER BY last_seen desc LIMIT 1 (0.3ms) BEGIN (0.9ms) SELECT 1 FROM "users" WHERE ("users"."username" = 'samia-dk' AND "users"."id" != 483) LIMIT 1 (0.9ms) SELECT 1 FROM "users" WHERE ("users"."email" = 'mail@filtered.dk' AND "users"."id" != 483) LIMIT 1 (0.4ms) ROLLBACK Completed 500 Internal Server Error in 14ms Rendered /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/gems/exception_notification_rails3-1.2.0/lib/exception_notifier/views/exception_notifier/_request.text.erb (0.8ms) Rendered /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/gems/exception_notification_rails3-1.2.0/lib/exception_notifier/views/exception_notifier/_title.text.erb (0.4ms) Rendered /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/gems/exception_notification_rails3-1.2.0/lib/exception_notifier/views/exception_notifier/_session.text.erb (0.9ms) Rendered /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/gems/exception_notification_rails3-1.2.0/lib/exception_notifier/views/exception_notifier/_title.text.erb (0.1ms) Rendered /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/gems/exception_notification_rails3-1.2.0/lib/exception_notifier/views/exception_notifier/_environment.text.erb (55.3ms) Rendered /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/gems/exception_notification_rails3-1.2.0/lib/exception_notifier/views/exception_notifier/_title.text.erb (0.3ms) Rendered /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/gems/exception_notification_rails3-1.2.0/lib/exception_notifier/views/exception_notifier/_backtrace.text.erb (1.7ms) Rendered /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/gems/exception_notification_rails3-1.2.0/lib/exception_notifier/views/exception_notifier/_title.text.erb (0.2ms) Rendered /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/gems/exception_notification_rails3-1.2.0/lib/exception_notifier/views/exception_notifier/exception_notification.text.erb (71.8ms) Sent mail to some@mail.com (3072ms) Date: Mon, 15 Aug 2011 12:13:18 -0400 From: Exception Notifier &lt;robot@myblog.dk&gt; To: some@mail.com Message-ID: &lt;4e49459e3709a_792610c8826e4@li267-196.mail&gt; Subject: [Exception] messages#index (NoMethodError) "undefined method `text?' for nil:NilClass" Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit A NoMethodError occurred in messages#index: undefined method `text?' for nil:NilClass config/initializers/some_debug.rb:6:in `build_relation' ------------------------------- Request: ------------------------------- * URL : http://www.myblog.dk/messages * IP address: filtered * Parameters: {"action"=&gt;"index", "controller"=&gt;"messages"} * Rails root: /home/atmorell/Dropbox/myblog5 ------------------------------- Session: ------------------------------- * session id: nil * data: {"_csrf_token"=&gt;"filtered=", "user_credentials"=&gt;true, "user_credentials_id"=&gt;483} ------------------------------- Environment: ------------------------------- * GATEWAY_INTERFACE : CGI/1.2 * HTTP_ACCEPT : text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 * HTTP_ACCEPT_CHARSET : ISO-8859-1,utf-8;q=0.7,*;q=0.7 * HTTP_ACCEPT_ENCODING : gzip, deflate * HTTP_ACCEPT_LANGUAGE : en,da;q=0.7,en-us;q=0.3 * HTTP_CONNECTION : close * HTTP_COOKIE : __utma=52641074.268317442.1313423882.1313423882.1313423882.1; __utmb=52641074.53.10.1313423882; __utmc=52641074; __utmz=52641074.1313423882.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); _myblog_session5=ed471364634fcd3b44c7bb0eae758b14; user_credentials=true%3A%3A483; auth_token=filtered * HTTP_HOST : www.myblog.dk * HTTP_REFERER : http://www.myblog.dk/messages/new * HTTP_USER_AGENT : Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20100101 Firefox/5.0 * HTTP_VERSION : HTTP/1.0 * PATH_INFO : /messages * QUERY_STRING : * REMOTE_ADDR : filtered-ip * REQUEST_METHOD : GET * REQUEST_PATH : /messages * REQUEST_URI : /messages * SCRIPT_NAME : * SERVER_NAME : www.myblog.dk * SERVER_PORT : 80 * SERVER_PROTOCOL : HTTP/1.1 * SERVER_SOFTWARE : thin 1.2.11 codename Bat-Shit Crazy * action_controller.instance : messages#index * action_dispatch.cookies : #&lt;ActionDispatch::Cookies::CookieJar:0x00000008766b98&gt; * action_dispatch.parameter_filter : [:password, /RAW_POST_DATA/] * action_dispatch.remote_ip : filtered-ip * action_dispatch.request.content_type : * action_dispatch.request.formats : [text/html] * action_dispatch.request.parameters : {"action"=&gt;"index", "controller"=&gt;"messages"} * action_dispatch.request.path_parameters : {:action=&gt;"index", :controller=&gt;"messages"} * action_dispatch.request.query_parameters : {} * action_dispatch.request.request_parameters: {} * action_dispatch.routes : #&lt;ActionDispatch::Routing::RouteSet:0x00000002eaf658&gt; * action_dispatch.secret_token : 93479c2e63bdb766a51f18397345cdc9a8b22ee009334171207f6b0bc2e71105d1f849de46e34965febc3b178cea662e89986e73d8922ec4915c44dca6ae4000 * action_dispatch.show_exceptions : true * async.callback : #&lt;Method: Thin::Connection#post_process&gt; * async.close : #&lt;EventMachine::DefaultDeferrable:0x000000087809a8&gt; * exception_notifier.options : {:email_prefix=&gt;"[Exception] ", :sender_address=&gt;"\"Exception Notifier\" &lt;robot@myblog.dk&gt;", :exception_recipients=&gt;["some@mail.com"], :ignore_exceptions=&gt;[ActiveRecord::RecordNotFound, AbstractController::ActionNotFound, ActionController::RoutingError]} * rack-cache.allow_reload : false * rack-cache.allow_revalidate : false * rack-cache.cache_key : Rack::Cache::Key * rack-cache.default_ttl : 0 * rack-cache.entitystore : rails:/ * rack-cache.metastore : rails:/ * rack-cache.private_headers : ["Authorization", "Cookie"] * rack-cache.storage : #&lt;Rack::Cache::Storage:0x000000029e9b50&gt; * rack-cache.verbose : true * rack.errors : #&lt;IO:0x00000000c27860&gt; * rack.input : #&lt;StringIO:0x00000008784c10&gt; * rack.multiprocess : false * rack.multithread : false * rack.request.cookie_hash : {"__utma"=&gt;"52641074.268317442.1313423882.1313423882.1313423882.1", "__utmb"=&gt;"52641074.53.10.1313423882", "__utmc"=&gt;"52641074", "__utmz"=&gt;"52641074.1313423882.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)", "_myblog_session5"=&gt;"ed471364634fcd3b44c7bb0eae758b14", "user_credentials"=&gt;"true::483", "auth_token"=&gt;"filtered"} * rack.request.cookie_string : __utma=52641074.268317442.1313423882.1313423882.1313423882.1; __utmb=52641074.53.10.1313423882; __utmc=52641074; __utmz=52641074.1313423882.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); _myblog_session5=ed471364634fcd3b44c7bb0eae758b14; user_credentials=true%3A%3A483; auth_token=filtered * rack.request.query_hash : {} * rack.request.query_string : * rack.run_once : false * rack.session : {"_csrf_token"=&gt;"jlK/filtered=", "user_credentials"=&gt;true, "user_credentials_id"=&gt;483} * rack.session.options : {:key=&gt;"_myblog_session5", :path=&gt;"/", :domain=&gt;nil, :expire_after=&gt;nil, :secure=&gt;false, :httponly=&gt;true, :defer=&gt;false, :renew=&gt;false, :id=&gt;"ed471364634fcd3b44c7bb0eae758b14"} * rack.session.record : #&lt;ActiveRecord::SessionStore::Session:0x000000087762f0&gt; * rack.url_scheme : http * rack.version : [1, 0] * Process: 1938 * Server : li267-196 ------------------------------- Backtrace: ------------------------------- config/initializers/some_debug.rb:6:in `build_relation' activerecord (3.1.0.rc5) lib/active_record/validations/uniqueness.rb:25:in `validate_each' activemodel (3.1.0.rc5) lib/active_model/validator.rb:153:in `block in validate' activemodel (3.1.0.rc5) lib/active_model/validator.rb:150:in `each' activemodel (3.1.0.rc5) lib/active_model/validator.rb:150:in `validate' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:302:in `_callback_before_483' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:622:in `_run_validate_callbacks' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:81:in `run_callbacks' activemodel (3.1.0.rc5) lib/active_model/validations.rb:212:in `run_validations!' activemodel (3.1.0.rc5) lib/active_model/validations/callbacks.rb:53:in `block in run_validations!' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:401:in `_run_validation_callbacks' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:81:in `run_callbacks' activemodel (3.1.0.rc5) lib/active_model/validations/callbacks.rb:53:in `run_validations!' activemodel (3.1.0.rc5) lib/active_model/validations.rb:179:in `valid?' activerecord (3.1.0.rc5) lib/active_record/validations.rb:69:in `valid?' activerecord (3.1.0.rc5) lib/active_record/validations.rb:77:in `perform_validations' activerecord (3.1.0.rc5) lib/active_record/validations.rb:50:in `save' activerecord (3.1.0.rc5) lib/active_record/attribute_methods/dirty.rb:22:in `save' activerecord (3.1.0.rc5) lib/active_record/transactions.rb:241:in `block (2 levels) in save' activerecord (3.1.0.rc5) lib/active_record/transactions.rb:295:in `block in with_transaction_returning_status' activerecord (3.1.0.rc5) lib/active_record/connection_adapters/abstract/database_statements.rb:183:in `transaction' activerecord (3.1.0.rc5) lib/active_record/transactions.rb:208:in `transaction' activerecord (3.1.0.rc5) lib/active_record/transactions.rb:293:in `with_transaction_returning_status' activerecord (3.1.0.rc5) lib/active_record/transactions.rb:241:in `block in save' activerecord (3.1.0.rc5) lib/active_record/transactions.rb:252:in `rollback_active_record_state!' activerecord (3.1.0.rc5) lib/active_record/transactions.rb:240:in `save' app/controllers/application_controller.rb:18:in `system' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:430:in `_run__163591495713425608__process_action__3187008165500041637__callbacks' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:386:in `_run_process_action_callbacks' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:81:in `run_callbacks' actionpack (3.1.0.rc5) lib/abstract_controller/callbacks.rb:17:in `process_action' actionpack (3.1.0.rc5) lib/action_controller/metal/rescue.rb:17:in `process_action' actionpack (3.1.0.rc5) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action' activesupport (3.1.0.rc5) lib/active_support/notifications.rb:55:in `block in instrument' activesupport (3.1.0.rc5) lib/active_support/notifications/instrumenter.rb:21:in `instrument' activesupport (3.1.0.rc5) lib/active_support/notifications.rb:55:in `instrument' actionpack (3.1.0.rc5) lib/action_controller/metal/instrumentation.rb:29:in `process_action' actionpack (3.1.0.rc5) lib/action_controller/metal/params_wrapper.rb:202:in `process_action' activerecord (3.1.0.rc5) lib/active_record/railties/controller_runtime.rb:18:in `process_action' actionpack (3.1.0.rc5) lib/abstract_controller/base.rb:121:in `process' actionpack (3.1.0.rc5) lib/abstract_controller/rendering.rb:45:in `process' actionpack (3.1.0.rc5) lib/action_controller/metal.rb:193:in `dispatch' actionpack (3.1.0.rc5) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch' actionpack (3.1.0.rc5) lib/action_controller/metal.rb:236:in `block in action' actionpack (3.1.0.rc5) lib/action_dispatch/routing/route_set.rb:65:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/routing/route_set.rb:65:in `dispatch' actionpack (3.1.0.rc5) lib/action_dispatch/routing/route_set.rb:29:in `call' rack-mount (0.8.2) lib/rack/mount/route_set.rb:152:in `block in call' rack-mount (0.8.2) lib/rack/mount/code_generation.rb:96:in `block in recognize' rack-mount (0.8.2) lib/rack/mount/code_generation.rb:68:in `optimized_each' rack-mount (0.8.2) lib/rack/mount/code_generation.rb:95:in `recognize' rack-mount (0.8.2) lib/rack/mount/route_set.rb:141:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/routing/route_set.rb:531:in `call' oa-core (0.2.6) lib/omniauth/strategy.rb:44:in `call!' oa-core (0.2.6) lib/omniauth/strategy.rb:30:in `call' oa-core (0.2.6) lib/omniauth/strategy.rb:44:in `call!' oa-core (0.2.6) lib/omniauth/strategy.rb:30:in `call' oa-core (0.2.6) lib/omniauth/strategy.rb:44:in `call!' oa-core (0.2.6) lib/omniauth/strategy.rb:30:in `call' oa-core (0.2.6) lib/omniauth/builder.rb:30:in `call' exception_notification_rails3 (1.2.0) lib/exception_notifier.rb:34:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call' rack (1.3.2) lib/rack/etag.rb:23:in `call' rack (1.3.2) lib/rack/conditionalget.rb:25:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/head.rb:14:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/params_parser.rb:21:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/flash.rb:243:in `call' rack (1.3.2) lib/rack/session/abstract/id.rb:195:in `context' rack (1.3.2) lib/rack/session/abstract/id.rb:190:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/cookies.rb:326:in `call' activerecord (3.1.0.rc5) lib/active_record/query_cache.rb:62:in `call' activerecord (3.1.0.rc5) lib/active_record/connection_adapters/abstract/connection_pool.rb:466:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:392:in `_run_call_callbacks' activesupport (3.1.0.rc5) lib/active_support/callbacks.rb:81:in `run_callbacks' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/callbacks.rb:28:in `call' rack (1.3.2) lib/rack/sendfile.rb:101:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/remote_ip.rb:48:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/show_exceptions.rb:47:in `call' railties (3.1.0.rc5) lib/rails/rack/logger.rb:13:in `call' rack (1.3.2) lib/rack/methodoverride.rb:24:in `call' rack (1.3.2) lib/rack/runtime.rb:17:in `call' activesupport (3.1.0.rc5) lib/active_support/cache/strategy/local_cache.rb:72:in `call' rack (1.3.2) lib/rack/lock.rb:15:in `call' actionpack (3.1.0.rc5) lib/action_dispatch/middleware/static.rb:53:in `call' rack-cache (1.0.2) lib/rack/cache/context.rb:132:in `forward' rack-cache (1.0.2) lib/rack/cache/context.rb:243:in `fetch' rack-cache (1.0.2) lib/rack/cache/context.rb:181:in `lookup' rack-cache (1.0.2) lib/rack/cache/context.rb:65:in `call!' rack-cache (1.0.2) lib/rack/cache/context.rb:50:in `call' railties (3.1.0.rc5) lib/rails/engine.rb:455:in `call' railties (3.1.0.rc5) lib/rails/railtie/configurable.rb:30:in `method_missing' thin (1.2.11) lib/thin/connection.rb:84:in `block in pre_process' thin (1.2.11) lib/thin/connection.rb:82:in `catch' thin (1.2.11) lib/thin/connection.rb:82:in `pre_process' thin (1.2.11) lib/thin/connection.rb:57:in `process' thin (1.2.11) lib/thin/connection.rb:42:in `receive_data' eventmachine (0.12.10) lib/eventmachine.rb:256:in `run_machine' eventmachine (0.12.10) lib/eventmachine.rb:256:in `run' thin (1.2.11) lib/thin/backends/base.rb:61:in `start' thin (1.2.11) lib/thin/server.rb:159:in `start' thin (1.2.11) lib/thin/controllers/controller.rb:86:in `start' thin (1.2.11) lib/thin/runner.rb:185:in `run_command' thin (1.2.11) lib/thin/runner.rb:151:in `run!' thin (1.2.11) bin/thin:6:in `&lt;top (required)&gt;' /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/bin/thin:19:in `load' /usr/local/rvm/gems/ruby-1.9.2-p290-dev@myblog5/bin/thin:19:in `&lt;main&gt;' NoMethodError (undefined method `text?' for nil:NilClass): config/initializers/some_debug.rb:6:in `build_relation' app/controllers/application_controller.rb:18:in `system' </code></pre> <p>User.rb</p> <pre><code> # -*- encoding : utf-8 -*- class User &lt; ActiveRecord::Base attr_accessible :username, :email, :birthday, :firstname, :lastname, :phone, :website, :profile, :avatar, :password, :avatar_cache, :name, :last_seen, :arts_count, :cheapest, :most_expensive #, :email_verified, :crypted_password, :password_salt, :administrator, :id # Virtual attributes attr_accessor :password, :password_confirmation belongs_to :cheapest, :class_name =&gt; "Art", :foreign_key =&gt; :cheapest belongs_to :most_expensive, :class_name =&gt; "Art", :foreign_key =&gt; :most_expensive has_many :blogs, :dependent =&gt; :destroy has_many :arts, :dependent =&gt; :destroy has_many :authentications, :dependent =&gt; :destroy has_friendly_id :username, :use_slug =&gt; true has_many :comments, :as =&gt; :commentable, :validate =&gt; :false mount_uploader :avatar, AvatarUploader before_save :encrypt_password before_create { generate_token(:auth_token) } after_create { send_account_activation } validates_uniqueness_of :username, :email validates_presence_of :username, :email validate :password_length_without_authentications validates_format_of :username, :with =&gt; /^[-a-z\d_]+$/, :message =&gt; "kun små bogstaver, tal og bindestreger. f.eks. galleri-toke" validates_length_of :username, :maximum=&gt;30, :message=&gt;"Dit brugernavn må max være 30 karakter." validates_length_of :username, :minimum=&gt;3, :message=&gt;"Dit brugernavn skal minimum være 3 karakter." validates_format_of :email, :with =&gt; /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i default_scope :order =&gt; "last_seen desc" #, :conditions =&gt; "username NOT LIKE 'robot'" scope :with_arts, where("arts_count &gt; 0") ... </code></pre> <p>Each time the user refreshed the page I update the last_seen column and save the logged_in user. For some reason the saving breaks. I have not been able to reproduce this on my development server.</p>
 

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