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From: Anh <7zark7@gmail.com>
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Subject: Re: Dealing with Atomic Operations
Date: Mon, 4 Jan 2010 18:03:20 -0800
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On Jan 4, 2010, at 10:04 PM, Andreas Pavlogiannis <paulogiann.couchdb@gmail.com 
 > wrote:
>
>>>
>>>
>>>
>>
> Hm, what about the case in which  a user  has enough space to upload  
> just one file, but several upload requests arrive concurrently. As  
> these requests are handled locally, each one will allow for the  
> document to be submitted. But in this way the user can exceed his  
> quota unboundedly (extreme scenario, but possible).
>>
>

Why is this a transactional issue?
Assuming your middle-ware is enforcing the quota,
seems you would have the same issue even if you were using an RDBMS  
with transaction support 
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