[Zope-dev] Massive scalability

[Andy McKay]

Does ZPatterns provide a nice interface / way for storing classes in a
RDBMS? I have to say using an RDBMS is not as transparent as I would like,
this may may improve it. Finally a reason for me to ZPatterns...

--
  Andy McKay.


----- Original Message -----
From: "John Eikenberry" <jae@kavi.com>
To: <zope-dev@zope.org>
Cc: "Michael Bernstein" <webmaven@lvcm.com>
Sent: Tuesday, January 16, 2001 3:22 PM
Subject: Re: [Zope-dev] Massive scalability


> Michael Bernstein wrote:
>
> > So, again: Has anyone run up against any performance or
> > other limitations regarding large numbers (hundreds of
> > thousands or more) of objects stored within the ZODB either
> > in a BTree Folder or a Rack?
>
> I was looking into the same issues recently, but for a much smaller set of
> data (50000ish). In my tests ZPatterns/binary-trees scaled well for
storage
> and retrieval. But ZCatalog did not. It was basically useless for partial
> matching searches (taking many minutes for searches that retrieved more
> than 100 matches). I was also concerned about the indexing overhead. It
> doesn't scale well when changing/adding many things at a time (we might
> have bulk adds/changes).
>
> I ended up deciding to go with a RDBMS backend for data storage with a
> ZPatterns interface. SkinScripts work so well for this that I'm actually
> glad I switched. It simplified my design and implementation immensely.
>
> --
>
> John Eikenberry
> [jae@zhar.net - http://zhar.net]
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