Marshal Daten zu kurz

Question

Meine Anwendung erfordert, große Datenobjekte in Sitzung zu halten. Es gibt etwa 3-4 Datenobjekte, die jeweils durch Parsing eines CSV erzeugt werden, das 150 X 20 Zellen mit Zeichenketten von 3-4 Zeichen enthält. Meine Anwendung zeigt diesen Fehler - "Marshal Daten zu kurz". Ich habe dies versucht-

• Löschen der alten Sitzungstabelle.
• Löschen der alten Migration für Sitzungstabelle.
• Erstellen einer neuen Migration mit rake db:sessions:create.
• die Migration manuell bearbeiten und text: data zu longtext: data ändern.
• läuft die Migration mit rake db:migrate.

andere Details von application--

In view "index.html.erb" - Es ist ein Link, der Ajax-Aufruf zu einer Aktion im Controller macht, analysiert diese Aktion große CSV-Datei und macht ein Objekt heraus. Dieses Objekt wird in der Sitzung gespeichert.

ERROR LOG

` ArgumentError in Scoring#index 

Showing app/views/scoring/index.html.erb where line #4 raised: 

marshal data too short 

Extracted source (around line #4): 

1: 
2: <form id="myForm"> 
3: 
4: <%= link_to_remote "get csv file", 
5:  :url  => { :action => 'show_static_1' }, 
6:  :update => "static_score", 
7:  :complete => "$('static_score').update(request.responseText)" %> 

Application Trace | Framework Trace | Full Trace 

/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:71:in `load' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:71:in `unmarshal' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:110:in `data' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:292:in `get_session' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:1448:in `silence' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:288:in `get_session' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:168:in `load_session' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:62:in `send' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:62:in `load!' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:70:in `stale_session_check!' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:61:in `load!' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:28:in `[]' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/request_forgery_protection.rb:106:in `form_authenticity_token' 
(eval):2:in `send' 
(eval):2:in `form_authenticity_token' 
app/views/scoring/index.html.erb:4:in `_run_erb_app47views47scoring47index46html46erb' 

/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:71:in `load' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:71:in `unmarshal' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:110:in `data' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:292:in `get_session' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:1448:in `silence' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:288:in `get_session' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:168:in `load_session' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:62:in `send' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:62:in `load!' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:70:in `stale_session_check!' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:61:in `load!' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:28:in `[]' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/request_forgery_protection.rb:106:in `form_authenticity_token' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/helpers/prototype_helper.rb:1065:in `options_for_ajax' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/helpers/prototype_helper.rb:449:in `remote_function' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/helpers/prototype_helper.rb:256:in `link_to_remote' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/renderable.rb:34:in `send' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/renderable.rb:34:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/base.rb:306:in `with_template' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/renderable.rb:30:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/template.rb:205:in `render_template' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/base.rb:265:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/base.rb:348:in `_render_with_layout' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/base.rb:262:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:1250:in `render_for_file' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:945:in `render_without_benchmark' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:51:in `render' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `ms' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:10:in `realtime' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `ms' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:51:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:1326:in `default_render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:1338:in `perform_action_without_filters' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:617:in `call_filters' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `ms' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:10:in `realtime' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `ms' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/rescue.rb:160:in `perform_action_without_flash' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/flash.rb:146:in `perform_action' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:532:in `send' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:532:in `process_without_filters' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:606:in `process' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:391:in `process' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:386:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/routing/route_set.rb:437:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:87:in `dispatch' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:121:in `_call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:130:in `build_middleware_stack' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/params_parser.rb:15:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:122:in `call' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in `call' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:9:in `cache' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:28:in `call' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/failsafe.rb:26:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `synchronize' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:114:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/reloader.rb:34:in `run' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:108:in `call' 
/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/rack/static.rb:31:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call' 
/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/rack/log_tailer.rb:17:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/content_length.rb:13:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/chunked.rb:15:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/mongrel.rb:64:in `process' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process_client' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process_client' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `initialize' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/mongrel.rb:34:in `run' 
/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/commands/server.rb:111 
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' 
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' 
script/server:3 

/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:71:in `load' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:71:in `unmarshal' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:110:in `data' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:292:in `get_session' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:1448:in `silence' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/session_store.rb:288:in `get_session' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:168:in `load_session' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:62:in `send' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:62:in `load!' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:70:in `stale_session_check!' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:61:in `load!' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:28:in `[]' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/request_forgery_protection.rb:106:in `form_authenticity_token' 
(eval):2:in `send' 
(eval):2:in `form_authenticity_token' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/helpers/prototype_helper.rb:1065:in `options_for_ajax' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/helpers/prototype_helper.rb:449:in `remote_function' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/helpers/prototype_helper.rb:256:in `link_to_remote' 
/app/views/scoring/index.html.erb:4:in `_run_erb_app47views47scoring47index46html46erb' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/renderable.rb:34:in `send' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/renderable.rb:34:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/base.rb:306:in `with_template' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/renderable.rb:30:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/template.rb:205:in `render_template' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/base.rb:265:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/base.rb:348:in `_render_with_layout' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_view/base.rb:262:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:1250:in `render_for_file' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:945:in `render_without_benchmark' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:51:in `render' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `ms' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:10:in `realtime' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `ms' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:51:in `render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:1326:in `default_render' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:1338:in `perform_action_without_filters' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:617:in `call_filters' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `ms' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:10:in `realtime' 
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `ms' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/rescue.rb:160:in `perform_action_without_flash' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/flash.rb:146:in `perform_action' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:532:in `send' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:532:in `process_without_filters' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:606:in `process' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:391:in `process' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:386:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/routing/route_set.rb:437:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:87:in `dispatch' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:121:in `_call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:130:in `build_middleware_stack' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/params_parser.rb:15:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/abstract_store.rb:122:in `call' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in `call' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:9:in `cache' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:28:in `call' 
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/failsafe.rb:26:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `synchronize' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:114:in `call' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/reloader.rb:34:in `run' 
/usr/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:108:in `call' 
/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/rack/static.rb:31:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call' 
/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/rack/log_tailer.rb:17:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/content_length.rb:13:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/chunked.rb:15:in `call' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/mongrel.rb:64:in `process' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process_client' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process_client' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `initialize' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new' 
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run' 
/usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/mongrel.rb:34:in `run' 
/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/commands/server.rb:111 
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' 
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' 
script/server:3 

Anfrage

Parameter:

Keine

anzeigen Sitzung Dump

---

Antwort

Headers:

{"Content-Type"=>"text/html", 
"Cache-Control"=>"no-cache"} 

`

Answer 1

Was im Fehlerprotokoll zeigt, nachdem Sie auf die Seite zugreifen, die diesen Fehler gibt?

Auch, was ist der Spaltentyp für Ihre Sitzungsinformationen in MySQL? TEXT?

------------- UNTER EDIT ----------------

Ok, soweit ich in der Lage habe Bestimmen Sie, dieser Fehler bedeutet im Allgemeinen, dass die Größe des Inhalts, den Sie in der Sitzung verschieben, zu groß für die MySQL-Spalte ist. Die gebräuchlichste Lösung scheint auf eine Lösung hinzuweisen, die Spalte von TEXT zu LONGTEXT zu ändern.

Versuchen Sie so etwas wie dies in MySQL läuft und sehen, ob es Ihnen keine Verbesserung gibt:

ALTER TABLE sessions CHANGE COLUMN data data LONGTEXT 

Die offensichtliche Lösung ist nicht die CSV-Daten in der Sitzung zu speichern, wie das ist wahrscheinlich nicht der beste Ort ist, um es Aber ich kenne deine Gründe nicht, was du tust. Vielleicht hast du keine anderen Möglichkeiten.

Geben Sie einen Versuch und lassen Sie mich wissen, ob es funktioniert hat.

Answer 2

Anstelle der manuellen ALTER TABLE können Sie tun auch eine Migration mit einem Limit, wie folgt aus:

class FixSessionStore < ActiveRecord::Migration 
    def self.up 
    change_column :sessions, :data, :text, :limit => 4.megabytes 
    end 

    def self.down 
    end 
end 

Dies wird die Säule in ein MEDIUMTEXT- drehen und auch richtig in Ihrem schema.rb angezeigt.

Answer 3

Die vorherigen Lösungen funktionierten nicht für mich. Was für mich arbeiten klar war, wurde die Sitzung des Cache mit

rake db:sessions:clear 

Answer 4

In Rails 4 Entwicklungsmodus hatte ich den gleichen Fehler, und die Lösung des folgenden:

Löschen alle Cache-Datei aus/tmp/cache/Ordner "Assets".

(Leider Vermögen scheffeln: clean nur dieses Problem nicht gelöst haben.)

Answer 5

ich das genau gleiche Problem begegnet.

Meine Rails-Version ist 4.1.4.

löste ich dieses Problem, indem ausgeführt wird:

rake tmp:clear          

löschen Sitzung, Cache und Socket-Dateien aus tmp/(narrow w/tmp: Sitzungen: klar, tmp: cache: klar, tmp: Steckdosen: clear)

Answer 6

das ist für mich gearbeitet

rm -rf tmp/cache