[Zope] Re: repozo, pack and backups

Dieter Maurer dieter at handshake.de
Wed Mar 5 13:31:42 EST 2008

Miles wrote at 2008-3-5 12:20 +0000:
> ....
>Say I record the transaction ID of the last transaction to be backed up 
>each night, pack the database, then with my next backup, only back up 
>transactions with an ID above that.  Is there any reason why this 
>wouldn't work as a strategy?
>Not sure I really want to be responsible for a completely custom backup 
>strategy, but I would like to know a bit more...

Packing can change old transactions (by deleting no longer used
object records).

Also note that a FileStorage contains back references (references
from one object record to a previous object record). Such
back references make it difficult to sticht together a backup
for transactions until a given tid and one for transaction from this
tid onward -- when some packing has happened in between.


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