[Zope-dev] Storing changes in ZODB, without keeping old versions

[Johan Carlsson]

It sounds like the problem that would come from
storing session data in ZODB.

One nice solution (as someone pointed out for me) would
be to have multiple parallell ZODB-storages.
One for the normal transactional ZODB(filebased or
RDMS-based) and one non-transactional for session-data
and cache-data. Both would be distributed by the ZEO for
failover and scalability.

Regards,
Johan Carlsson




> The ZCache Product I created has one major problem - every time it updates
> itself it'll make the ZODB grow, since it stores all the old contents it
> had.  I don't want this to happen - there's no reason why anyone
> should undo
> a change to the cache.  I do however want the contents of the ZCache to be
> stored on disk when it gets moved out of the Zope cache, so I
> don't want to
> use volatile variables.
>
> Is there any way to do this?  Or is it impossible?
>
> --
> Itamar S.T.  itamars@ibm.net
>
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