Can we see the code you used to change your table? 

Also, how many properties do you have on the entity you were modifying, and 
are they all indexed?

T

On Tuesday, July 3, 2012 7:53:14 PM UTC+1, Sarang wrote:
>
> Hello,
>
> I have an application that was consuming around 11 cents/day of datastore 
> read operations. Here is  a snapshot from historical billing:
>
> http://gyazo.com/ee441da7686ddff4f3648383e8d7418c
>
> Today, I wanted to make a small change to a table with around 3000 
> entries. I wanted to add another bool field. So I looped over each entry, 
> read each row, added the boolean field, and saved. I was shocked to note 
> that my app went over quota and my loop stopped in between. When I looked 
> at the dashboard, it is showing me 5.8 million datastore read operations. 
> See the snapshot:
>
> http://gyazo.com/2dc918ac61c3af295378b8c1a54de77a 
>
> This is absolutely crazy. Can anyone from the App Engine team please 
> explain this?
>
> My setup is Django non-rel. The model had only a few fields and I am not 
> doing anything special in save() method. 
>
> Regards,
> Sarang
>

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