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allbuttonspressed.blogspot.com
When developing a scalable application for App Engine you need to pay attention to how often a database entity is updated because you can only update any single entity with a maximal frequency of 1-5 times per second. If the frequency of updates for any single entity is higher than this limit you can expect your application to have contention. In order to prevent such situations you can use a technique called sharding.
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added by Alrond
Our post about how to use the Django non-relational port and its supported features is already in the pipeline, but in the meantime I'd like to post a little update for those who want to contribute. In case you haven't heard of it, yet: the non-relational port adds support for Django's ORM (Model, QuerySet, etc.), so you can use the same code on App Engine, other cloud platforms, and on SQL.
http://allbuttonspressed.blogspot.c ...
added by Alrond
Update: Our main branch has changed to django-nonrel which is based on a much simpler strategy that became possible with Django's new multi-db support. All links in this article have been updated. The old branch is still available.
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added by Alrond
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