There are two mitigating things here, 1) The scheduler and instance concurrency is set to improve - meaning less instances anyway - to do the same workload.
2) If you doing a regular job, then reserved instances would most likely save you money. (And another possible, with Backends, could perhaps use a more powerful instance to zip though tasks even quicker) (or the shorter answer - this is still all based on speculation of the new system, don't make decisions yet) On 20 May 2011 13:56, Raymond C. <windz...@gmail.com> wrote: > As I know MapReduce rely on a relative large number of instances (on top of > the normal traffic) to perform the calculation efficiently in parallel. > Under the new pricing model each instance will cost you 15min idle time > after the job is done. Therefore 15min times n instances are wasted (cost > you without using them). If n=8 (for a relatively small and slow task), > there will be an additional cost of $0.16 just for one MapReduce operation. > It will be very costly if you are doing sth like hourly job like reporting. > 8 instances will cost you $115.2/month for hourly MapReduce task, which > is in additional to the cost of the actual run time, just for MapReduce > tasks. > My question is, is it still a flexible mechanism on AppEngine? Or we should > rely on external service to do these kind of calculation? (complex but could > be more cost effective?) > > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > 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. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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.
