Is it, but you have a healthy dyno. If the dyno crashes, or hangs somehow, it 
gets removed. 


Neil Middleton
http://about.me/neilmiddleton
On Wednesday, 16 February 2011 at 16:55, Tim W wrote: 
> Thanks, I will give rack-timeout a try.
> 
> So what it seems like is that the routing mesh is not as sophisticated
> as Heroku leads on?
> 
> On Feb 16, 11:45 am, Neil Middleton <neil.middle...@gmail.com> wrote:
> > The dyno is still running the long request, successfully. It's only the 
> > routing mesh that's returned the timeout error back to the user. Therefore, 
> > the dynos still in your 'grid' and ready for new requests.
> > 
> > I blogged about something very similar a couple of weeks 
> > back:http://neilmiddleton.com/avoiding-zombie-dynos-with-heroku
> > 
> > Neil Middletonhttp://about.me/neilmiddleton
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > On Wednesday, 16 February 2011 at 16:42, Tim W wrote:
> > > The Heroku website claims:
> > 
> > > http://heroku.com/how/dyno_grid_last#3
> > > "If a dyno is unresponsive for any reason (user bugs, long requests,
> > > or high load), other requests will be routed around it."
> > 
> > > In my experience, this does not seem to be the case. We have several
> > > admin features in our app that when requested with certain params, it
> > > can take longer then 30s to run. (I am working on ways to get these in
> > > check and in the background). When a user trips one of these long
> > > running requests, Heroku appears to queue additional requests to this
> > > dyno and those requests time out, even though there are plenty of
> > > other dynos available to handle that request.
> > 
> > > Is the statement on the Heroku website true or false? It does not
> > > appear that Heroku actively monitors the dynos to see if they are busy
> > > with a long running request. Is there a better way to handle this
> > > situation?
> > 
> > > Thanks..
> > > -tim
> > 
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