If you're only updating 1,000 posts and you have all the ids in advance, a single batch put() will probably perform more than adequately.
Jeff On Thu, Apr 14, 2011 at 10:09 AM, Robert Kluin <[email protected]> wrote: > Last time I checked, the current map-reduce implementation doesn't > support queries -- so you'd have to map over all of your data adding > labels to the entities that match. I would rather use tasks + cursors > personally. If you have a query to get the list of posts just use > 'chained' tasks that pass a cursor to the next task after querying for > their posts. If you have a big list of post ids / keys, then split > them into batches and insert a task to process each batch. Either > method can be made to run extremely fast. > > > > > > > On Thu, Apr 14, 2011 at 23:06, nischalshetty <[email protected]> > wrote: >> @barryhunter >> Thank you so much for your reply. I would need to often apply a particular >> label to say a thousand posts. >> Would you still suggest I go with this approach and may be run a map reduce >> to update the 1000 records? It would be frequently done by all the users, >> would that be ok? >> -N >> >> -- >> 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. > > -- 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.
