[Zope-dev] Alternative Storages: (was RelationalStorage (was LocalFS))

[Jason Spisak]

Phillip J. Eby writes:

> At 10:29 PM 5/3/00 -0500, Jimmie Houchin wrote:
> >
> >I think the Rack system can, from my understanding, handle the requirements
> >I listed in my post. Basically, the ability to place certain objects with
> >their own distinct storage characteristics in an appropriate storage.
> 
> That is precisely what they were designed for.  Late last year, Ty Sarna
> and I were doing extensive analysis of the performance of the standard
> FileStorage under high write loads and large data sets, followed by
> consulting with Digital Creations to explore alternatives.  What we ended
> up with was realizing that there had to be a way to have (effectively)
> class-by-class storage management.  We took some ideas we had used
> previously for SQL applications in Zope/ZPublisher, plus a few design
> patterns from Coad and other sources, and came up with Rack and Implementor
> (now called Specialist).  
> 
> 
> >What would complement Rack storage well and is basically the topic is
> >multifile ZODB. If the ZODB had multifile capability and each Rack could
> >name it's file and path that the ZODB uses. Then we would have an excellent
> >balance between transparency of storage and capabilities.
> 
> Yes.  But not so much multifile ZODB, as multi-*storage* ZODB or
> multi-ZODB.  I'd like to see a way for getting at (and managing)
> connections to other ZODB's from within the "primary" ZODB.  Rack already
> has the dropdown and some stub routines for using this; all I need is what
> to put in 'em.  :)
> 


I believe Michel mailed out an idea about having Zope "mount" (don't like
this term because it conjures up NFS ghosts. Boo!) specific storages at
startup.  Kind of a "this is the path/connection where you can find this
part of the tree"  Then the valid ones are available to fill your list.

All my best,

Jason Spisak
CIO
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