I've tried using the datastore admin to delete some very large datasets as well. The solution Bemmu is using will be *significantly* faster, and from my experience, should be more cost effective.
I'm also eager to hear what Bemmu thinks after the delete has ran for a while. Robert On Wed, Mar 9, 2011 at 21:20, David Mora <dla.m...@gmail.com> wrote: > hmmm, well Wesley's option B was merely because the batch operations i > think. One nice feature about the map reduce is the mutation pool which > handles the logic of batching an operation while you yield thru iterations. > I guess in a big dataset like yours make sense (the model retrieval vs key > only). Anyways, interested case - i'll love to see where it ends :) > > On 9 March 2011 19:26, Simon Knott <knott.si...@gmail.com> wrote: >> >> I've been given the impression from these forums that the datastore admin >> tool is so expensive for exactly the reason you've stated David - it loads >> each entity by key before deletion, whereas deleting purely on keys is much >> cheaper CPU-wise as you don't need to bother with the retrieval of the >> entire entity to carry out the delete. >> >> -- >> 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. > > > > -- > http://about.me/david.mora > > -- > 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.
