When you actually do the request that takes ages, it's definitely not spawning any new workers, or killing old ones?
Is it basically a simple app? Just DB + Rails? You were suspicious of the fact that it's in a VM -- what virtualisation thing are you using? On Tue, Dec 20, 2011 at 11:26, Chris Mayan <[email protected]> wrote: > Hi Simon, > > The passenger worker processes are and have been running since a few days > ago (quick "ps" shows they have all been alive at least 3 days). > > Production.rb has: > ----------------------------- > > config.cache_classes = true > > config.action_controller.consider_all_requests_local = false > > config.action_controller.perform_caching = true > > config.action_view.cache_template_loading = true > > > Apart from that no "caches_page" or "caches_action" directives are used in > any controllers > or anywhere else in the rails app etc.. > > > Cheers > Chris > > On Tue, Dec 20, 2011 at 11:09 AM, Simon Russell <[email protected]> > wrote: >> >> Can you see the passenger worker processes running on the box (after >> the six hour period)? And are you doing any page/fragment/anything >> caching in the Rails app? >> >> On Tue, Dec 20, 2011 at 10:58, Chris Mayan <[email protected]> wrote: >> > Hi there, >> > >> > I'm having some very slow responses on view rendering of the first load >> > of a >> > site after no requests have been made to the server say after 6 or so >> > hours. >> > >> > I've included some prod logs, and the Passenger configuration files >> > (please >> > see below) to show the 22 second delay. >> > >> > Quick background: >> > a) the site redirects http requests to https. >> > b) the first request is to the root of the site, which responds in a >> > slow >> > 2.4 seconds before redirecting to the https version of the page, >> > c) it redirects, and the redirected view takes almost 22seconds to >> > render. >> > d) subsequent hits to the site (even from another browser on a different >> > network connection that has never visited the site before) now only >> > takes on >> > average 64ms! >> > >> > Is this some sort of Passenger configuration problem? I've read and >> > reread >> > the Passenger configuration manual and I have set options to stop it >> > from >> > idling down any of the spawns and / or rails environment that may cause >> > the >> > slow lag after no requests for some time. >> > I've also utilised PassengerPreStart, and used MinInstances. >> > >> > But none of this seems to cure this problem at all. >> > >> > The server is also not using any swap. Here is the output from "free": >> > >> > total used free shared buffers >> > cached >> > Mem: 1023384 881020 142364 0 61940 >> > 188796 >> > -/+ buffers/cache: 630284 393100 >> > Swap: 905208 0 905208 >> > >> > Is there some Passenger/Apache configuration that I am missing? >> > Is there some OS thing that is affecting the performance? (Server is >> > virtual >> > machine - is the VM starved of cpu/disk resources perhaps?) >> > Have any of you experienced anything like this and/or know a way to >> > resolve >> > it? >> > >> > Thanks and appreciate any help or suggestions >> > >> > Cheers >> > Chris >> > >> > >> > Prod Logs: >> > ---------------- >> > >> > Processing SiteController#index (for x.x.x.x at 2011-12-20 09:42:01) >> > [GET] >> > Parameters: {"action"=>"index", "controller"=>"site"} >> > Redirected to https://domainname.com/ >> > Filter chain halted as [:ensure_proper_protocol] rendered_or_redirected. >> > Completed in 2471ms (DB: 1) | 302 Found [http://domainname.com/] >> > >> > >> > Processing SiteController#index (for x.x.x.x at 2011-12-20 09:42:06) >> > [GET] >> > Parameters: {"action"=>"index", "controller"=>"site"} >> > Rendering template within layouts/general_layout >> > Rendering site/index >> > Completed in 22577ms (View: 21815, DB: 96) | 200 OK >> > [https://domainname.com/] >> > >> > >> > Processing SiteController#index (for x.x.x.x at 2011-12-20 09:43:03) >> > [GET] >> > Parameters: {"action"=>"index", "controller"=>"site"} >> > Rendering template within layouts/general_layout >> > Rendering site/index >> > Completed in 64ms (View: 56, DB: 25) | 200 OK [https://domainname.com/] >> > >> > >> > >> > Passenger.conf: >> > ------------------------- >> > <IfModule mod_passenger.c> >> > PassengerRoot /var/lib/gems/1.8/gems/passenger-3.0.9 >> > PassengerRuby /usr/bin/ruby1.8 >> > PassengerUseGlobalQueue On >> > PassengerSpawnMethod smart >> > PassengerFriendlyErrorPages Off >> > PassengerMinInstances 5 >> > PassengerPoolIdleTime 0 >> > PassengerHighPerformance on >> > PassengerLogLevel 0 >> > RailsFrameworkSpawnerIdleTime 0 >> > RailsAppSpawnerIdleTime 0 >> > </IfModule> >> > >> > >> > In the individual site config I have: >> > -------------------------------------------------- >> > PassengerPreStart https://domainname.com >> > >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "Ruby or Rails Oceania" group. >> > To post to this group, send email to [email protected]. >> > To unsubscribe from this group, send email to >> > [email protected]. >> > For more options, visit this group at >> > http://groups.google.com/group/rails-oceania?hl=en. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Ruby or Rails Oceania" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/rails-oceania?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Ruby or Rails Oceania" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/rails-oceania?hl=en. -- You received this message because you are subscribed to the Google Groups "Ruby or Rails Oceania" group. 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