Jay
2008-Dec-15 14:10 UTC
Trying to track down an issue in a performance based load test.. using Rails 2.2.2
I am trying to debug an issue with Rails 2.2.2... I am running a load
test where I am logging in and out 20 users, and I am occasionally
seeing this error, in my logs: (see stack trace below) it appears
that the body of some of my requests are null... I''m trying to figure
out if a) it''s a rails issue, b) is it a jruby/rack issue or c) is it
an issue with caching (which is turned on but I wouldn''t think should
be an issue on a login/logout scenario). any one have any thoughts on
where I Could check to see why the body is null? I''m off to try and
turn off caching to see what happens but this issue is a pretty big
issue and we need to resolve it asap. We see it in normal usage of
our website too. It appears to be timing related but I''m not sure why
or how yet.
I''m not necessarily looking for THE answer but any general help of
"check xxx" would be great.
Thanks!
Jay
[#|2008-12-11T16:14:13.299-0500|INFO|sun-appserver9.1|
javax.enterprise.system.container.web|
_ThreadID=16;_ThreadName=httpWorkerThread-8081-1;|PWC1412: WebModule[]
ServletContext.log():/!\ FAILSAFE /!\ Thu Dec 11 16:14:13 -0500 2008
Status: 500 Internal Server Error
undefined method `[]'' for nil:NilClass
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/request.rb:597:in `clean_up_ajax_request_body!''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/request.rb:508:in
`parse_formatted_request_parameters''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/request.rb:441:in `request_parameters''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/request.rb:392:in `parameters''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/request.rb:30:in `request_method''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/
activesupport-2.2.2/lib/active_support/memoizable.rb:86:in
`request_method''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/request.rb:40:in `method''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/routing/route_set.rb:433:in
`extract_request_environment''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/routing/route_set.rb:386:in `recognize''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/dispatcher.rb:182:in `handle_request''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/dispatcher.rb:120:in `dispatch''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/dispatcher.rb:132:in `dispatch_cgi''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/
applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/
lib/action_controller/dispatcher.rb:39:in `dispatch''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/
jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:37:in
`serve_rails''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/
jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:44:in `call''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/
jsp/j2ee-modules/WebSite/loader/jruby/rack/rails.rb:145:in `call''
/Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/
jsp/j2ee-modules/WebSite/loader/rack/handler/servlet.rb:17:in `call'':1
|#]
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---
s.ross
2008-Dec-16 03:31 UTC
Re: Trying to track down an issue in a performance based load test.. using Rails 2.2.2
Here''s a thought: If it''s Ajax and your are POSTing from jQuery, check to see you have params. Some clients are sketchy about filling in a body of a POST by themselves. On Dec 15, 2008, at 6:10 AM, Jay wrote:> > I am trying to debug an issue with Rails 2.2.2... I am running a load > test where I am logging in and out 20 users, and I am occasionally > seeing this error, in my logs: (see stack trace below) it appears > that the body of some of my requests are null... I''m trying to figure > out if a) it''s a rails issue, b) is it a jruby/rack issue or c) is it > an issue with caching (which is turned on but I wouldn''t think should > be an issue on a login/logout scenario). any one have any thoughts on > where I Could check to see why the body is null? I''m off to try and > turn off caching to see what happens but this issue is a pretty big > issue and we need to resolve it asap. We see it in normal usage of > our website too. It appears to be timing related but I''m not sure why > or how yet. > > I''m not necessarily looking for THE answer but any general help of > "check xxx" would be great. > > Thanks! > Jay > > > > > > > [#|2008-12-11T16:14:13.299-0500|INFO|sun-appserver9.1| > javax.enterprise.system.container.web| > _ThreadID=16;_ThreadName=httpWorkerThread-8081-1;|PWC1412: WebModule[] > ServletContext.log():/!\ FAILSAFE /!\ Thu Dec 11 16:14:13 -0500 2008 > Status: 500 Internal Server Error > undefined method `[]'' for nil:NilClass > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/request.rb:597:in `clean_up_ajax_request_body!'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/request.rb:508:in > `parse_formatted_request_parameters'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/request.rb:441:in `request_parameters'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/request.rb:392:in `parameters'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/request.rb:30:in `request_method'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > activesupport-2.2.2/lib/active_support/memoizable.rb:86:in > `request_method'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/request.rb:40:in `method'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/routing/route_set.rb:433:in > `extract_request_environment'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/routing/route_set.rb:386:in `recognize'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/dispatcher.rb:182:in `handle_request'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/dispatcher.rb:120:in `dispatch'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/dispatcher.rb:132:in `dispatch_cgi'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > lib/action_controller/dispatcher.rb:39:in `dispatch'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:37:in > `serve_rails'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:44:in `call'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > jsp/j2ee-modules/WebSite/loader/jruby/rack/rails.rb:145:in `call'' > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > jsp/j2ee-modules/WebSite/loader/rack/handler/servlet.rb:17:in `call'':1 > |#] > > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Jay
2008-Dec-16 14:57 UTC
Re: Trying to track down an issue in a performance based load test.. using Rails 2.2.2
I think it''s more multithreaded... we aren''t using JQuery just prototype. Most of the time things work but we are seeing errors where it appears the body just disappears. Jay On Dec 15, 10:31 pm, "s.ross" <cwdi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> Here''s a thought: If it''s Ajax and your are POSTing from jQuery, check > to see you have params. Some clients are sketchy about filling in a > body of a POST by themselves. > > On Dec 15, 2008, at 6:10 AM, Jay wrote: > > > > > I am trying to debug an issue with Rails 2.2.2... I am running a load > > test where I am logging in and out 20 users, and I am occasionally > > seeing this error, in my logs: (see stack trace below) it appears > > that the body of some of my requests are null... I''m trying to figure > > out if a) it''s a rails issue, b) is it a jruby/rack issue or c) is it > > an issue with caching (which is turned on but I wouldn''t think should > > be an issue on a login/logout scenario). any one have any thoughts on > > where I Could check to see why the body is null? I''m off to try and > > turn off caching to see what happens but this issue is a pretty big > > issue and we need to resolve it asap. We see it in normal usage of > > our website too. It appears to be timing related but I''m not sure why > > or how yet. > > > I''m not necessarily looking for THE answer but any general help of > > "check xxx" would be great. > > > Thanks! > > Jay > > > [#|2008-12-11T16:14:13.299-0500|INFO|sun-appserver9.1| > > javax.enterprise.system.container.web| > > _ThreadID=16;_ThreadName=httpWorkerThread-8081-1;|PWC1412: WebModule[] > > ServletContext.log():/!\ FAILSAFE /!\ Thu Dec 11 16:14:13 -0500 2008 > > Status: 500 Internal Server Error > > undefined method `[]'' for nil:NilClass > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/request.rb:597:in `clean_up_ajax_request_body!'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/request.rb:508:in > > `parse_formatted_request_parameters'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/request.rb:441:in `request_parameters'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/request.rb:392:in `parameters'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/request.rb:30:in `request_method'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > > activesupport-2.2.2/lib/active_support/memoizable.rb:86:in > > `request_method'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/request.rb:40:in `method'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/routing/route_set.rb:433:in > > `extract_request_environment'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/routing/route_set.rb:386:in `recognize'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/dispatcher.rb:182:in `handle_request'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/dispatcher.rb:120:in `dispatch'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/dispatcher.rb:132:in `dispatch_cgi'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > > applications/j2ee-modules/WebSite/WEB-INF/gems/gems/actionpack-2.2.2/ > > lib/action_controller/dispatcher.rb:39:in `dispatch'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > > jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:37:in > > `serve_rails'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > > jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:44:in `call'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > > jsp/j2ee-modules/WebSite/loader/jruby/rack/rails.rb:145:in `call'' > > /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > > jsp/j2ee-modules/WebSite/loader/rack/handler/servlet.rb:17:in `call'':1 > > |#]--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
s.ross
2008-Dec-16 20:19 UTC
Re: Trying to track down an issue in a performance based load test.. using Rails 2.2.2
Are you open to putting some code in rack? If so, I''d try inserting a mutex as early in the request request cycle as possible and see whether you can repro the problem with the threading reduced as close to single-threaded as possible. If its a threading issue, you''ve got some real detective work ahead of you, but it sounds like you already know that. Sorry not to be encouraging. We''re using MRI and Mongrel -- but this is, I agree, an important problem. On Dec 16, 2008, at 6:57 AM, Jay wrote:> > I think it''s more multithreaded... we aren''t using JQuery just > prototype. > > Most of the time things work but we are seeing errors where it appears > the body just disappears. > > Jay > > On Dec 15, 10:31 pm, "s.ross" <cwdi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: >> Here''s a thought: If it''s Ajax and your are POSTing from jQuery, >> check >> to see you have params. Some clients are sketchy about filling in a >> body of a POST by themselves. >> >> On Dec 15, 2008, at 6:10 AM, Jay wrote: >> >> >> >>> I am trying to debug an issue with Rails 2.2.2... I am running a >>> load >>> test where I am logging in and out 20 users, and I am occasionally >>> seeing this error, in my logs: (see stack trace below) it appears >>> that the body of some of my requests are null... I''m trying to >>> figure >>> out if a) it''s a rails issue, b) is it a jruby/rack issue or c) is >>> it >>> an issue with caching (which is turned on but I wouldn''t think >>> should >>> be an issue on a login/logout scenario). any one have any >>> thoughts on >>> where I Could check to see why the body is null? I''m off to try and >>> turn off caching to see what happens but this issue is a pretty big >>> issue and we need to resolve it asap. We see it in normal usage of >>> our website too. It appears to be timing related but I''m not sure >>> why >>> or how yet. >> >>> I''m not necessarily looking for THE answer but any general help of >>> "check xxx" would be great. >> >>> Thanks! >>> Jay >> >>> [#|2008-12-11T16:14:13.299-0500|INFO|sun-appserver9.1| >>> javax.enterprise.system.container.web| >>> _ThreadID=16;_ThreadName=httpWorkerThread-8081-1;|PWC1412: >>> WebModule[] >>> ServletContext.log():/!\ FAILSAFE /!\ Thu Dec 11 16:14:13 -0500 >>> 2008 >>> Status: 500 Internal Server Error >>> undefined method `[]'' for nil:NilClass >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/request.rb:597:in >>> `clean_up_ajax_request_body!'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/request.rb:508:in >>> `parse_formatted_request_parameters'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/request.rb:441:in `request_parameters'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/request.rb:392:in `parameters'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/request.rb:30:in `request_method'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> activesupport-2.2.2/lib/active_support/memoizable.rb:86:in >>> `request_method'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/request.rb:40:in `method'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/routing/route_set.rb:433:in >>> `extract_request_environment'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/routing/route_set.rb:386:in `recognize'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/dispatcher.rb:182:in `handle_request'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/dispatcher.rb:120:in `dispatch'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/dispatcher.rb:132:in `dispatch_cgi'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ >>> actionpack-2.2.2/ >>> lib/action_controller/dispatcher.rb:39:in `dispatch'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ >>> jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:37:in >>> `serve_rails'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ >>> jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:44:in `call'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ >>> jsp/j2ee-modules/WebSite/loader/jruby/rack/rails.rb:145:in `call'' >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ >>> jsp/j2ee-modules/WebSite/loader/rack/handler/servlet.rb:17:in >>> `call'':1 >>> |#] > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Jay McGaffigan
2008-Dec-16 21:40 UTC
Re: Trying to track down an issue in a performance based load test.. using Rails 2.2.2
no... Thank you for responding! It''s good just to be able to talk with someone about it. I think I will be putting code into rack... Or rather with JRuby I think if I set it up to have multiple runtimes a mutex is inserted. I''m goign to keep on pluggin :) Jay On Tue, Dec 16, 2008 at 3:19 PM, s.ross <cwdinfo-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > Are you open to putting some code in rack? If so, I''d try inserting a > mutex as early in the request request cycle as possible and see > whether you can repro the problem with the threading reduced as close > to single-threaded as possible. If its a threading issue, you''ve got > some real detective work ahead of you, but it sounds like you already > know that. > > Sorry not to be encouraging. We''re using MRI and Mongrel -- but this > is, I agree, an important problem. > > On Dec 16, 2008, at 6:57 AM, Jay wrote: > > > > > I think it''s more multithreaded... we aren''t using JQuery just > > prototype. > > > > Most of the time things work but we are seeing errors where it appears > > the body just disappears. > > > > Jay > > > > On Dec 15, 10:31 pm, "s.ross" <cwdi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > >> Here''s a thought: If it''s Ajax and your are POSTing from jQuery, > >> check > >> to see you have params. Some clients are sketchy about filling in a > >> body of a POST by themselves. > >> > >> On Dec 15, 2008, at 6:10 AM, Jay wrote: > >> > >> > >> > >>> I am trying to debug an issue with Rails 2.2.2... I am running a > >>> load > >>> test where I am logging in and out 20 users, and I am occasionally > >>> seeing this error, in my logs: (see stack trace below) it appears > >>> that the body of some of my requests are null... I''m trying to > >>> figure > >>> out if a) it''s a rails issue, b) is it a jruby/rack issue or c) is > >>> it > >>> an issue with caching (which is turned on but I wouldn''t think > >>> should > >>> be an issue on a login/logout scenario). any one have any > >>> thoughts on > >>> where I Could check to see why the body is null? I''m off to try and > >>> turn off caching to see what happens but this issue is a pretty big > >>> issue and we need to resolve it asap. We see it in normal usage of > >>> our website too. It appears to be timing related but I''m not sure > >>> why > >>> or how yet. > >> > >>> I''m not necessarily looking for THE answer but any general help of > >>> "check xxx" would be great. > >> > >>> Thanks! > >>> Jay > >> > >>> [#|2008-12-11T16:14:13.299-0500|INFO|sun-appserver9.1| > >>> javax.enterprise.system.container.web| > >>> _ThreadID=16;_ThreadName=httpWorkerThread-8081-1;|PWC1412: > >>> WebModule[] > >>> ServletContext.log():/!\ FAILSAFE /!\ Thu Dec 11 16:14:13 -0500 > >>> 2008 > >>> Status: 500 Internal Server Error > >>> undefined method `[]'' for nil:NilClass > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/request.rb:597:in > >>> `clean_up_ajax_request_body!'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/request.rb:508:in > >>> `parse_formatted_request_parameters'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/request.rb:441:in `request_parameters'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/request.rb:392:in `parameters'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/request.rb:30:in `request_method'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> activesupport-2.2.2/lib/active_support/memoizable.rb:86:in > >>> `request_method'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/request.rb:40:in `method'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/routing/route_set.rb:433:in > >>> `extract_request_environment'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/routing/route_set.rb:386:in `recognize'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/dispatcher.rb:182:in `handle_request'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/dispatcher.rb:120:in `dispatch'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/dispatcher.rb:132:in `dispatch_cgi'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/ > >>> applications/j2ee-modules/WebSite/WEB-INF/gems/gems/ > >>> actionpack-2.2.2/ > >>> lib/action_controller/dispatcher.rb:39:in `dispatch'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > >>> jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:37:in > >>> `serve_rails'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > >>> jsp/j2ee-modules/WebSite/loader/rack/adapter/rails.rb:44:in `call'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > >>> jsp/j2ee-modules/WebSite/loader/jruby/rack/rails.rb:145:in `call'' > >>> /Applications/NetBeans/glassfish-v2ur2/domains/domain1/generated/ > >>> jsp/j2ee-modules/WebSite/loader/rack/handler/servlet.rb:17:in > >>> `call'':1 > >>> |#] > > > > > > > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---