[ZWeb] DISCUSS: Migration armageddon

Paul Everitt paul@zope.com
Tue, 07 May 2002 17:40:36 -0400


Actually, 60% is as good as 100%, depending on what's missing.  We need 
to have much of the content to continue through the milestones, but not all.

What didn't migrate?

--paul

Chris McDonough wrote:
> 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
> 
> some
> 
>>input.
>>
>>We have a big and scary challenge facing nzo.  Getting content out
> 
> of
> 
>>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
> 
> business
> 
>>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
> 
> from
> 
>>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.
> 
> Presumably
> 
>>this means multiple passes as we go throught milestones on the way
> 
> to
> 
>>launch.
>>
>>To facilitate this, Tres' team here wrote some migration scripts
> 
> that
> 
>>try to express all the exceptional conditions and business rules
> 
> for the
> 
>>transformation.  This migration script *used* to work.  It doesn't
> 
> work
> 
>>now.  ChrisM spent two days trying to address this and ran into
> 
> all
> 
>>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
> 
> links
> 
>>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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> 
> 
> 
> 
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