Bumping Min-Pending latency should instruct the scheduler to wait for existing instances to be available rather than spinning an additional instance.
On Mon, Sep 5, 2011 at 2:57 PM, Roch Delsalle <[email protected]> wrote: > Yes, Thanks for your explanations, > What If I want my app to remain under a fixed amount of instances whatever > spike happen ? > > On Mon, Sep 5, 2011 at 2:28 PM, Johan Euphrosine <[email protected]> wrote: >> >> You should be able to control the number of instances by using new >> performance settings in "Application Settings > Performance": >> >> "Min Pending Latency" allows you to maximize existing instance usage >> over new instance creation at the expense of potential increased >> latency: >> The scheduler will rather have the request waiting for at least "Min >> Pending Latency" in the pending queue if no instance is available, >> rather than starting a new instances for handling it. >> >> "Max Idle Instance" allows you to minimize the amount of Idle instance >> the scheduler keeps around for handling traffic spikes, and enforce >> that you don't get billed for more than "Number of Active Instances + >> Max Idle Instances". >> The scheduler will rather kill existing instance down to "Max Idle >> Instance" rather than keeping them alive at the expense of an >> increased amount of instance startup/shutdown cycle. >> >> Hope that helps. >> >> On Mon, Sep 5, 2011 at 2:06 PM, Roch Delsalle <[email protected]> wrote: >> > I'm not leaving yet but I'll if the scheduler doesn't let me choose how >> > many >> > Instances I want. >> > >> > On Sun, Sep 4, 2011 at 2:12 PM, Joshua Smith <[email protected]> >> > wrote: >> >> >> >> I'm not leaving GAE, but in the comments on a RWW article, I saw that >> >> the >> >> AppScale folks ( http://appscale.cs.ucsb.edu/ ) seem to be trolling for >> >> customers. (I mean trolling in the fishing sense, no the usenet >> >> sense.) >> >> I'm sure those people must be on these mailing lists. Perhaps one of >> >> them >> >> could speak up to how turn-key their solution is at this point? >> >> I wonder if they've run any big apps like CDN-in-a-box on AWS, to see >> >> how >> >> the costs and performance compare. >> >> On Sep 4, 2011, at 8:02 AM, Tim Hoffman wrote: >> >> >> >> Raymond >> >> Unfortunately I don't see a lot of postings detailing what the real >> >> alternatives to appengine are, what >> >> certain size traffic sites and data sets would actually cost to run on >> >> these alternatives. >> >> May be you could provide a bit of an over view of your apps design, >> >> what >> >> its costing you, >> >> how much it would cost to move elsewhere and run it on some other >> >> platform >> >> and what it would really cost to run >> >> on that platform. What are the strengths and weaknesses of these other >> >> platforms are, so that others in this community >> >> can get some guidance. >> >> Lots of people are throwing around statements like it is cheaper to run >> >> on >> >> heroku or AWS, but just not a lot of hard facts >> >> at the moment. >> >> A quick look at Heroku tells me a single dyno + 20GB shared DB will >> >> cost >> >> $15 per month, and 2 dynos + 20GB >> >> shared DB is $50 per month. Now I know nothing about Heroku but thats >> >> what their pricing page is telling me. >> >> (Correct these figures if they are wrong) >> >> Which all suggests to me that Heroku would cost about the same to host >> >> a >> >> small appengine app. >> >> Rgds >> >> Tim >> >> -- >> >> You received this message because you are subscribed to the Google >> >> Groups >> >> "Google App Engine" group. >> >> To view this discussion on the web visit >> >> https://groups.google.com/d/msg/google-appengine/-/4uORTgZzKBUJ. >> >> 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/google-appengine?hl=en. >> >> >> >> -- >> >> You received this message because you are subscribed to the Google >> >> Groups >> >> "Google App Engine" 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/google-appengine?hl=en. >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "Google App Engine" 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/google-appengine?hl=en. >> > >> >> >> >> -- >> Johan Euphrosine (proppy) >> Developer Programs Engineer >> Google Developer Relations >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine" 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/google-appengine?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" 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/google-appengine?hl=en. > -- Johan Euphrosine (proppy) Developer Programs Engineer Google Developer Relations -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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