A slow SQL query woudn't freeze rails 2.2 as it freezes 2.1 now as the MRI removes threads that are waiting for IO handles to be available from the running list, so this should not be a big issue with the new rails, but JRuby is a definitely better option today with the latest rails.
- Maurício Linhares http://alinhavado.wordpress.com/ (pt-br) | http://blog.codevader.com/ (en) João Pessoa, PB, +55 83 8867-7208 On Wed, Oct 29, 2008 at 12:26 PM, michael_teter <[EMAIL PROTECTED]> wrote: > > I don't know how practical this is, but I can envision a system > whereby each process wraps a request/response with a Start End message > to a load balancer so it will know which processes are busy and which > are not. Further, the load balancer could keep statistics that might > be useful in optimizing the balance behavior. > >> Yup that's the way it is. load balancing across several mongrels helps >> a bit, but not massively because most load balancers just spread the >> load equally - they don't prioritize mongrels that aren't processing a >> request. >> Rails 2.2 is thread safe, but MRI's less than stellar threading means >> that won't make a lot of difference if you are using MRI. For jruby >> things could get very interesting. >> >> Fred >> >> > Secondly, for what it's worth, I'm running a mongrel cluster, but that >> > isn't helping right now. >> >> > More info: >> >> > "top" shows the host machine completely idle. >> > development.log shows only user A's query SQL, but it does not show >> > user B's request for a new page. >> > When user A's query finally completes, then suddenly Rails comes back >> > to life, and user B gets a response. >> >> > This is a serious problem for me right now. It must be a >> > configuration problem, because there's no way Rails is designed to >> > behave this way...? >> >> > Oh also, the database is hosted on another machine, and it's Oracle 9. >> >> > Thanks! >> > Michael > > > --~--~---------~--~----~------------~-------~--~----~ 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 [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
