If you don't want to introduce MapReduce solely for this purpose, you
can write a queued task that loops through the data to delete it ....
and that recreates a new instance of itself just before time limit (10
min) to continue the deletion.

regards

didier

On Sep 9, 8:37 pm, Marcelo Liberato <mliber...@gmail.com> wrote:
> You may use MapReduce programmatically or just use Datastore admin (which
> uses mapreduce behind the scenes).
>
> On Thu, Sep 8, 2011 at 12:30 PM, blitzer <brian.blit...@gmail.com> wrote:
> > So I have ~ 35 million rows of data. I have seen that I need to get the
> > data into a collection and then call deletePersistAll(). Is that the only
> > way?
>
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