[ZODB-Dev] Fixing POSKeyErrors :-)

Jim Fulton jim at zope.com
Wed Feb 13 19:34:20 EST 2008


On Feb 13, 2008, at 6:14 PM, Binger David wrote:

>
> On Feb 13, 2008, at 3:58 PM, Jim Fulton wrote:
>
>> Note that, IMO, some of the best use cases for multi databases are  
>> separating catalog and session data from regular content.
>
> Could you say more about what the benefit of this separation is,

Catalogs and session data change much faster than content.  It makes  
sense to pack these more frequently.  On large system, it provides the  
ability to spread load over multiple servers, if necessary.

> and why cross-storage references are necessary for it?


Cross-database references aren't strictly needed for this.  They  
provide a simple way to do it though.

Jim

--
Jim Fulton
Zope Corporation




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