Hi, we have a problem with a small-sized Rails application. It is currently in productive use, and sometimes the customer reports unavailability of the application. Today I could watch one of these occasions live and connect to the server while the application was down. Both mongrel servers were using 100% cpu and a wast amout of memory, they seemed to be blocked by some large operation (probably a bug in some report generating functionality of the application) I don''t see any chance to fix the bug soon, so my question is, how can I set a time-limit on those mongrel servers? The configuration: - Linux Debian - Apache mod_proxy - 2 Mongrel servers Somehow mongrel should be restarted, when one request takes more time than 1 minute. I don''t see a way to do this. Any help would be greatly appreciated. - Andi --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
> I don''t see any chance to fix the bug soon, so my question is, how can > I set a time-limit on those mongrel servers?I don''t have the answer, so this isn''t a very helpful post! Back in my .asp days, we''d set a Server.Timeout to a given number of seconds. This sort of thing would work for you. On mongrel.rubyforge.org, there''s some stuff about "Ability to specify a timeout throttling setting and a max number of concurrent connections with additional attempts at cleaning dead threads out". --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
1. Look at your code. Find out what''s causing the mongrels to misbehave. More often than not it''s a code problem. 2. Are you using RMagick? That''s caused me some problems. 3. Use Monit. There are some great resources for mongrel + monit. You can use monit to stop / restart mongrels after various conditions occur. http://www.igvita.com/blog/2006/11/07/monit-makes-mongrel-play-nice/ http://software.pmade.com/blogs/ramblings/2006/12/27/mongrel-cluster-and-monit On Nov 26, 2007 10:45 AM, toby privett <tobyprivett-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > > I don''t see any chance to fix the bug soon, so my question is, how can > > I set a time-limit on those mongrel servers? > > I don''t have the answer, so this isn''t a very helpful post! Back in my > .asp days, we''d set a Server.Timeout to a given number of seconds. > This sort of thing would work for you. > > On mongrel.rubyforge.org, there''s some stuff about "Ability to specify > a timeout throttling setting and a max number of concurrent > connections with additional attempts at cleaning dead threads out". > > > >--~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
Thanks for your answers. I will try monit, it sounds promising. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---