I think that Ikai made an off-by-one-error: it requires 22 writes assuming that every property is indexed :-)
Check out "Entity Delete (per entity)" at: http://code.google.com/appengine/docs/billing.html#Billable_Resource_Unit_Cost Cheers, Brian On Tue, Dec 20, 2011 at 11:47 PM, supercobra <[email protected]> wrote: > Could you explain (again?) how a deletion of an entity w/ 10- property is 21 > writes? > > > On Mon, Dec 19, 2011 at 3:18 PM, Ikai Lan (Google) <[email protected]> > wrote: >> >> One thing you can do is making this really slow. The free quota actually >> gives you quite a bit of quota (if your app is relatively small) so if you >> can stretch out your job you can purge a relatively small datastore at low >> cost. >> >> I suspect what makes this expensive is datastore ops, not instance hours. >> Deleting an entity with 10 properties is 21 writes! There's not a lot we can >> do there ... >> >> -- >> Ikai Lan >> Developer Programs Engineer, Google App Engine >> plus.ikailan.com | twitter.com/ikai >> >> >> >> On Mon, Dec 19, 2011 at 9:50 AM, Patrick Twohig >> <[email protected]> wrote: >>> >>> Hi, >>> >>> I have a bit of old data that I want to clean out. I tried to write a >>> fanout operation to clean out some of the old data, but it's actually manged >>> to run out my budget in a few hours. I'm curious if there would be a way to >>> delete huge amounts of old data that isn't needed anymore. Is there a tool >>> or something that i can use to efficiently purge entity groups from my >>> application? Any help would be greatly appreciated. >>> >>> Thanks, >>> Patrick. >>> >>> -- >>> Patrick H. Twohig. >>> >>> Namazu Studios >>> P.O. Box 34161 >>> San Diego, CA 92163-4161 >>> >>> -- >>> 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. -- 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.
