Thanks thats very helpful! ᐧ
On Wed, Sep 25, 2013 at 8:19 AM, Jeff Schnitzer <j...@infohazard.org> wrote: > I don't flood it - I just make one fetch to make sure a single instance is > up. Our app is very busty and usually has low enough traffic that this > prevents any major UX issues. I just wanted to mention it just in case > someone does try this with a high-traffic app. > > Shelling out to 'ab' is pretty simple. This should get a handful of > instances off the ground: > > > ab -n 100 -c 10 http://www.example.com/ > > > See http://en.wikipedia.org/wiki/ApacheBench > > Jeff > > > On Tue, Sep 24, 2013 at 7:14 PM, Aleem Mawani <al...@streak.com> wrote: > >> >> >> On Saturday, August 10, 2013 10:08:01 AM UTC-7, Jeff Schnitzer wrote: >>> >>> We do zero-downtime rolling deployments. Our solution is to deploy to a >>> new version each time (identified by a timestamp), warm up the version, and >>> then switch. If you have a high-traffic app you may need to use something >>> like 'ab' to flood the new version and spin up enough instances. >>> >> Can you describe the proicess you use to "flood" the new version with >> requests? >> >> >> >>> >>> Here's our ant script: >>> https://gist.github.com/**stickfigure/6201192<https://gist.github.com/stickfigure/6201192> >>> >>> Unfortunately there's no API to delete old versions, so every couple >>> deploys we have to go into the GAE admin UI and delete several versions by >>> hand. >>> >>> We're in the process of mavenizing this app so this is all going to >>> change again of course... >>> >>> Jeff >>> >>> >>> On Fri, Aug 9, 2013 at 4:44 PM, Nick <naok...@gmail.com> wrote: >>> >>>> We do continuous deployment as well, although not 30 a day. >>>> I can't quite remember when there started being issues with 500s being >>>> served when deploying an app, but it wasn't always the case. Appengine used >>>> to just handle deploying newer code to the same version and start up new >>>> instances, shutting down old ones naturally. >>>> >>>> We basically have two versions, one set to default, and another used >>>> for smoke test and to host while we're deploying. We upload new code to the >>>> smoke testing environment, smoke test, then switch it to default. Then we >>>> deploy to the other version and flip it back to default. >>>> >>>> Occasionally the behaviour doing this changes (for a while the old >>>> instances on the old version didn't shutdown, and had to be done manually), >>>> but that's the nature of appengine. >>>> >>>> Issue to star if you're interested (this affects everyone, any >>>> deployment will currently cause downtime to consumers for a small window - >>>> 2 seconds to a couple of minutes, there will be no indication of this in >>>> your logs at all): >>>> http://code.google.com/p/**googleappengine/issues/detail?** >>>> id=7874&q=Deploy&colspec=ID%**20Type%20Component%20Status%** >>>> 20Stars%20Summary%20Language%**20Priority%20Owner%20Log<http://code.google.com/p/googleappengine/issues/detail?id=7874&q=Deploy&colspec=ID%20Type%20Component%20Status%20Stars%20Summary%20Language%20Priority%20Owner%20Log> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Google App Engine" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to google-appengi...@**googlegroups.com. >>>> To post to this group, send email to google-a...@googlegroups.**com. >>>> >>>> Visit this group at >>>> http://groups.google.com/**group/google-appengine<http://groups.google.com/group/google-appengine> >>>> . >>>> For more options, visit >>>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>>> . >>>> >>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to google-appengine+unsubscr...@googlegroups.com. >> >> To post to this group, send email to google-appengine@googlegroups.com. >> Visit this group at http://groups.google.com/group/google-appengine. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- > You received this message because you are subscribed to a topic in the > Google Groups "Google App Engine" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/google-appengine/Q9v_0bqm9ZI/unsubscribe > . > To unsubscribe from this group and all its topics, send an email to > google-appengine+unsubscr...@googlegroups.com. > To post to this group, send email to google-appengine@googlegroups.com. > Visit this group at http://groups.google.com/group/google-appengine. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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