[ZODB-Dev] Re: History-less FileStorage?

Laurence Rowe l at lrowe.co.uk
Fri Dec 29 15:55:00 EST 2006


I'm sure you're probably aware of these, but I thought I'd file this 
summary while they were in my head.

There is no history-less FileStorage. It is essentially a transaction log.

Directory Storage has Minimal.py which is history-less, very simple 
though it is not proven in production. Could be a good candidate for 
storing the catalogue, though I imagine you would want to rebuild after 
an unclean shutdown of zope in this case.
http://dirstorage.sourceforge.net/FAQ.html

BDBStorage never made it. http://wiki.zope.org/ZODB/BDBStorage.html

PGStorage does store the history. However it would be fairly simple to 
rework it not to (indeed it would simplify the code considerably). 
Performance is similar to or better than ZEO + FileStorage, though 
slower than local FileStorage.
http://sourceforge.net/projects/pgstorage


Laurence

Stefan H. Holek wrote:
> Do we have a history-less (i.e. no-grow) FileStorage?
> 
> Thanks,
> Stefan
> 
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