[ZWeb] DISCUSS: Migration armageddon

Chris McDonough chrism@zope.com
Tue, 7 May 2002 17:25:23 -0400

Update:  thanks to Jens we have the migration script running but
it's only migrating about 60% of the content over.  It needs work to
do the other 40%.

----- Original Message -----
From: "Paul Everitt" <paul@zope.com>
To: <Zope-Web@zope.org>
Sent: Tuesday, May 07, 2002 5:06 PM
Subject: [ZWeb] DISCUSS: Migration armageddon

> Howdy.  I'd like to put an issue in front of the nzo team and get
> input.
> We have a big and scary challenge facing nzo.  Getting content out
> czo (current zope.org) and into nzo (new.zope.org) has turned into
a pit
> of despair.  The next step isn't clear.
> Background information: czo has a bunch of Zope 2.3 objects,
mostly as
> ZClasses and stock zope objects.  There are special cases and
> rules that have accumulated over the years that make it a
challenge to
> get a grip on what's there.
> Likewise, there is a nzo software setup that is really different
> nzo (CMF/Zope 2.5.x), also with some of its own business rules.
> We need to get content from czo -> nzo in a repeatable way.
> this means multiple passes as we go throught milestones on the way
> launch.
> To facilitate this, Tres' team here wrote some migration scripts
> try to express all the exceptional conditions and business rules
for the
> transformation.  This migration script *used* to work.  It doesn't
> now.  ChrisM spent two days trying to address this and ran into
> kinds of nasty things.
> Here's the challenge: we've now used up the allotted time for
Chris and
> we can't migrate the czo content.
> It appears that these are some of the options:
> a. Wait (for an indeterminate amount of time) for Chris to become
> available again.
> b. Try to run nzo in parallel with czo and find someone to provide
> between the two.
> c. Somebody think up a different approach to migration.
> I'm open to suggestions on this.  Realistic suggestions are
preferred. :^)
> --Paul
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