Not sure if this helps but it sounds to me like you may want to look at storing the data in a rdbms. MySQL, ProgresSQL and Interbase are the free ones (not entily sure if this is true for interbase). I know oracle could do this (but of course it is expensive). Also the platform you are using is probably important for this type of stuff (i.e. go for unix).

Hi,

I would like to store several huge data-objects (10Mb and more) in the ZODB by use of ZOPE (Zope-2.3.0b1), but in my first tries I discovered, that the access to folders that include several huge objects becomes very slow.

I already tested the BerkeleyDB as an alternative --- it helped a little bit, but I had problems to get rid of unreferenzed objects by packing the BerkeleyDB; only the referenzes were deleted, but not the corresponding data in the BerkeleyDB.

Does anybody know, if there are other alternative storage managers available? In the "ZODB How-To" relational storage managers are mentioned,

but it's also mentioned that they are still experimental. For example is it possible to use the mySQL-DB and if so, where can I find

infos about that stuff?

Or is it necessary to store these objects externally as pickle-objects and

store only a referenz to them in the ZODB ?

best regards, Christoph

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