Correct. Where did I say it prevents H20? :) On Thu, Dec 13, 2012 at 11:18 AM, Neil Middleton <n...@neilmiddleton.com>wrote:
> So there is still the behaviour where your app is effectively down while > you're waiting for the dynos to spin up? It looks to me like this gets > round the issue of preventing deploys from working due to R10 rather than > preventing H20's? > > -- > Neil > > On Thursday, 13 December 2012 at 16:06, Daniel Doubrovkine wrote: > > Heroku-preboot doesn't achieve the same thing: it changes the order in > which dynos stop/start - instead of first stopping dynos, then queuing, > then starting dynos, it first starts the new dynos, then swaps them after 2 > minutes. The 60s timeout still applies to the new dynos the same way as it > did before. > > A request routed to the live dyno is queued inside the dyno (inside the > proxy). When all your dynos are queuing, Heroku will queue the request. If > a dyno failed to serve the request in 30s, you get an H20 request timeout. > To mitigate this, the proxy also supports a delay option that will sleep > for 0 < N < 60 seconds waiting for your backend to come up - we run it with > 45 seconds - our average server boot time is somewhere around 65s and we > want to get closer to Heroku's 60s limit (in theory we should set our delay > to 59s, but you know, computers aren't that precise :). > > On Thu, Dec 13, 2012 at 10:26 AM, Neil Middleton > <n...@neilmiddleton.com>wrote: > > Interesting. > > Does using Heroku pre boot also achieve this or does the 60 second limit > still apply? https://devcenter.heroku.com/articles/labs-preboot/ > What happens to requests that get routed to the 'live' dyno before the app > has started? > > -- > Neil > > On Thursday, 13 December 2012 at 15:21, Daniel Doubrovkine wrote: > > Many have been struggling with the Heroku R10 boot timeout. > > Announcing heroku-forward, a new gem for those with larger or slower > applications struggling to boot on Heroku within the 60s timeout limit. See > http://artsy.github.com/blog/2012/12/13/beat-heroku-60-seconds-application-boot-timeout-with-a-proxyfor > an introduction. > > Of course, it's best not to have this problem and being able to boot your > application in less than 60 seconds, but this could be your short/medium > term fix when you hit the boot time limit. > > Hope it helps, > > cheers > dB. > > -- > > dB. | Moscow - Geneva - Seattle - New York > dblock.org <http://www.dblock.org> - > @dblockdotorg<http://twitter.com/#!/dblockdotorg> > > -- > You received this message because you are subscribed to the Google > Groups "Heroku" group. > > To unsubscribe from this group, send email to > heroku+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/heroku?hl=en_US?hl=en > > > -- > You received this message because you are subscribed to the Google > Groups "Heroku" group. > > To unsubscribe from this group, send email to > heroku+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/heroku?hl=en_US?hl=en > > > > > -- > > dB. | Moscow - Geneva - Seattle - New York > dblock.org <http://www.dblock.org> - > @dblockdotorg<http://twitter.com/#!/dblockdotorg> > > -- > You received this message because you are subscribed to the Google > Groups "Heroku" group. > > To unsubscribe from this group, send email to > heroku+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/heroku?hl=en_US?hl=en > > > -- > You received this message because you are subscribed to the Google > Groups "Heroku" group. > > To unsubscribe from this group, send email to > heroku+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/heroku?hl=en_US?hl=en > -- dB. | Moscow - Geneva - Seattle - New York dblock.org <http://www.dblock.org> - @dblockdotorg<http://twitter.com/#!/dblockdotorg> -- You received this message because you are subscribed to the Google Groups "Heroku" group. To unsubscribe from this group, send email to heroku+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/heroku?hl=en_US?hl=en
