[ZODB-Dev] PyTables Storage

[Andreas Jung]

On 31.10.2008 22:17 Uhr, Christophe Combelles wrote:
> Tim Cook a écrit :
>> Does anyone know of any work being done on a PyTables
>> http://www.pytables.org storage?
>
> No, but I might be interested in such a thing, since I've created last year a
> medical data analysis software on which I encountered such memory issues, while
> looping over large structures in zodb.
> I have looked at pytables a few times, but I've never tried it yet. (I had also
> looked at SOOM (a component of NetEpi Analysis), which allow to compute stats on
> very large datasets.)
> Is it worth creating a new storage implementation for such cases? Don't just we
> need to implement (or use an existing) specific structure in filestorage?
>
> Christophe
>
>> I see a future need in my project to be able to manage real time storage
>> of medical data and the author of PyTables lists the memory usage of the
>> ZODB as being a drawback in these situations.

The problem with all such implementations is: they don't support 
transactions which is a major requirement. I also looked at 10gen lately 
(something similar like GAE but open-source) and they also provide some 
nice storage (of course "the cloud") but also lack transaction integration.

Andreas
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