Hi Emanuele, We had the exact same need for f1 frontend and larger instances for some tasks. We solved it using larger backends combined with task queues. When you enqueue you can provide the target which would be used to run the task or you can configure a task queue to only run on a specific target. If you have tasks generated from a backend you can enqueue back onto a frontend using the constant: taskqueue.DEFAULT_APP_VERSION.
We cut our instance costs by 50% with this approach (f2 -> f1). There were issues getting it to work on the dev server (naming issue) but it's pretty simple on app engine. Andy On Tuesday, November 27, 2012 6:10:30 PM UTC-5, Emanuele Ziglioli wrote: > > Hi everyone, > > have been following this group for months but can't recall reading > anything related to this: currently the instance size is one big knob while > it'd be useful to be able to select a different instance size at runtime. > Our web site is perfectly served by F1 instances but it runs out of memory > of some task queues when iterating over a large number of instances. For > that reason only we have to run F2 instances at higher costs. > The type of work we run in task queues really suits MapReduce but the java > version has been broken for us for many months now. > Would it be difficult to add a parameter when posting to a task queue to > request for a larger instance? > I don't really want to use backends given their bad rep. > > Similarly, giving people more choice with regards to what instances to > start and when could perhaps solve a large set of problems that people have > been complaining about. > If you can't modify the scheduler to suit all possible needs (I can > understand it's an impossible goal), just give the ability to write our own > schedulers. At the end of the day we pay for what we use and the that usage > is capped by the daily budget anyway. > > Does it make sense? > > Emanuele > > -- 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/-/alzI5S7IqHUJ. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
