Anyone willing to lead this discussion to some kind of better resolution?
Did that whole back and forth help with any ideas on the best path forward?
I know it's a complicated issue, git / svn, the light side, the dark side,
but doesn't GitHub also depend on this mirroring? It's going to be super
annoying when I can no longer pull from a relatively up to date git remote.

Who has boiled down the correct path?

- Mark

On Wed, Dec 9, 2015 at 6:07 AM Dawid Weiss <dawid.we...@gmail.com> wrote:

> FYI.
>
> - All of Lucene's SVN, incremental deltas, uncompressed: 5.0G
> - the above, tar.bz2: 1.2G
>
> Sadly, I didn't succeed at recreating a local SVN repo from those
> incremental dumps. svnadmin load fails with a cryptic error related to
> the fact that revision number of node-copy operations refer to
> original SVN numbers and they're apparently renumbered on import.
> svnadmin isn't smart enough to somehow keep a reference of those
> original numbers and svndumpfilter can't work with incremental dump
> files... A seemingly trivial task of splitting a repo on a clean
> boundary seems incredibly hard with SVN...
>
> If anybody wishes to play with the dump files, here they are:
> http://goo.gl/m6q3J8
>
> Dawid
>
> On Tue, Dec 8, 2015 at 10:49 PM, Upayavira <u...@odoko.co.uk> wrote:
> > You can't avoid having the history in SVN. The ASF has one large repo,
> and
> > won't be deleting that repo, so the history will survive in perpetuity,
> > regardless of what we do now.
> >
> > Upayavira
> >
> > On Tue, Dec 8, 2015, at 09:24 PM, Doug Turnbull wrote:
> >
> > It seems you'd want to preserve that history in a frozen/archiced Apache
> Svn
> > repo for Lucene. Then make the new git repo slimmer before switching.
> Folks
> > that want very old versions or doing research can at least go through the
> > original SVN repo.
> >
> > On Tuesday, December 8, 2015, Dawid Weiss <dawid.we...@gmail.com> wrote:
> >
> > One more thing, perhaps of importance, the raw Lucene repo contains
> > all the history of projects that then turned top-level (Nutch,
> > Mahout). These could also be dropped (or ignored) when converting to
> > git. If we agree JARs are not relevant, why should projects not
> > directly related to Lucene/ Solr be?
> >
> > Dawid
> >
> > On Tue, Dec 8, 2015 at 10:05 PM, Dawid Weiss <dawid.we...@gmail.com>
> wrote:
> >>> Don’t know how much we have of historic jars in our history.
> >>
> >> I actually do know. Or will know. In about ~10 hours. I wrote a script
> >> that does the following:
> >>
> >> 1) git log all revisions touching
> https://svn.apache.org/repos/asf/lucene
> >> 2) grep revision numbers
> >> 3) use svnrdump to get every single commit (revision) above, in
> >> incremental mode.
> >>
> >> This will allow me to:
> >>
> >> 1) recreate only Lucene/ Solr SVN, locally.
> >> 2) measure the size of SVN repo.
> >> 3) measure the size of any conversion to git (even if it's one-by-one
> >> checkout, then-sync with git).
> >>
> >> From what I see up until now size should not be an issue at all. Even
> >> with all binary blobs so far the SVN incremental dumps measure ~3.7G
> >> (and I'm about 75% done). There is one interesting super-large commit,
> >> this one:
> >>
> >> svn log -r1240618 https://svn.apache.org/repos/asf/lucene
> >> ------------------------------------------------------------------------
> >> r1240618 | gsingers | 2012-02-04 22:45:17 +0100 (Sat, 04 Feb 2012) | 1
> >> line
> >>
> >> LUCENE-2748: bring in old Lucene docs
> >>
> >> This commit diff weights... wait for it... 1.3G! I didn't check what
> >> it actually was.
> >>
> >> Will keep you posted.
> >>
> >> D.
> >
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> >
> >
> >
> > --
> > Doug Turnbull | Search Relevance Consultant | OpenSource Connections,
> LLC |
> > 240.476.9983
> > Author:Relevant Search
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- Mark
about.me/markrmiller

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