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Hello,

Robert Osfield wrote:
> 
> Thanks for the offer.  Should I add you to osg-crew?

You are welcome. Feel free to do it.

> 
> Have you done mailman or cvs -> svn migrations before?  If others have done
> the same and can provide insights about the potential pitfalls please tell
> us your story.  Even if members don't get their hands dirty discussion of
> prior experiences would be really useful.

What do you mean by mailman migration? Migration from what? If it is
just moving mailman between servers, that isn't a big deal - just copy
the installation over and few files will probably need changing due to a
different host/domain name. Expect a disruption though - not so much
related to mailman (the changeover should be a matter of minutes) but
with standard DNS propagation issues and such. The list will be probably
a bit out of whack for a day or two until everything settles.

I was running a mailman installation for several lists, with a bit of
customization to include spam filtering so that you do not have to go to
manually cancel spam from the moderation queue every day. However, none
of our lists was as big as the OSG lists.

Regarding the CVS->SVN migration - I have done that several times, the
repository conversion itself is a rather uneventful process if you use
the cvs2svn script. Subversion itself is quite easy to setup and manage,
however it has the disadvantage that the data are stored in a database,
not as individual RCS files as with CVS where you can go into the
repository and hack them when somebody or something messes up. On the
other hand, the advantages of subversion easily outweigh this issue - I
usually needed to hack CVS repositories only because of bugs or CVS
"misfeatures" which SVN doesn't have.

A nice tool which works with Subversion is Trac:
http://trac.edgewall.org/ - it provides source browsing, wiki and
integrated bug tracker all in one without requiring a dedicated database
(everything is stored as subversion project). I am running this for our
internal needs at the moment and it works great.

Regards,

Jan

- --

Jan Ciger
GPG public key: http://www.keyserver.net/

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