Hi Michael,
With small entities and without transactions, groups, high replication
etc. you can save much more entities p/s
from Nick Johnson (google)
batch put, also delete
updated = []
for entity in MyModel.all().filter("color =",
old_favorite).fetch(100):
entity.color = new_favorite
updated.append(entity)
db.put(updated)
gr
wim
2011/1/26 Michael McClain <[email protected]>:
> Hi everybody,
>
> I am new to Google Apps Engine.
> I'm interested in using a cloud storage service for a large scale database
> system.
>
> I have to store billions of keys. Where each key has a 12 bytes value.
> During query time I need to perfome one thousand simultaneous queries to
> retrieve 5000 thousand keys for each query. So I need to retrieve
> 5000*1000*12 bytes = 60 megabytes each time my application is run.
>
> I would like to understand if this is feasible using Google Datastore.
> What would be the latency in performing one thousand simultaneous queries?
>
> Is there a Google representative that could assist me in understanding if
> my app is feasible for deployment in Google Datastore?
> I'm interested in Google Datastore because it can scale usage growth and
> peak time traffic.
>
> Thank you,
> Michael
>
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--
gr
Wim den Ouden
Custom applications, https://e-comm.appspot.com/
Free open source E-commerce/E-bookkeeping/E-business framework (web)
apps, http://code.google.com/p/relat/
Gae developer tips, http://code.google.com/p/relat/wiki/gaetips
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