Re: Migration problem : Disk space increased

On Feb 5, 2007, at 03:55, Frédéric PRACA wrote:

> Friday afternoon I migrated from subversion 1.3.2 to 1.4.3 on the
> office Windows
> XP server. I kept the BDB repository in 1.3 format until the end of
> the day when
> I decided after migrating all clients to upgrade the repository
> itself. To do
> that, I stopped Apache, dumped my repository (930 Mb), renamed the
> folder,
> created a new repository using the new format and loaded my dump
> file into it.
> Surprisingly, the new repository is now 1.2 Gb !! That is not what
> I really
> expected to happen after reading the release notes of the 1.4 version.
> If you have any idea of what happened and what to do to decrease
> the size of the
> repo, I'll be very happy to hear it from you ;-)
> For the moment, I'm not really sure of what will the backup server
> maintainer
> say when seeing such an increase ;-)

True, the release notes do say that a 1.4 repository can be up to 50%
smaller on disk than a 1.3 repository due to improvements in xdelta:

http://subversion.tigris.org/svn_1.4_releasenotes.html#svndiff1

You mention that your old repository was BDB-based. Is your new
repository also BDB-based? Or is it FSFS-based, which is the default?
It's certainly possible that BDB- and FSFS-based repositories would
need different amounts of space to store the same data (though I
haven't compared it myself).

What version of BerkeleyDB were you using with the old repo? If the
new repo is also BDB-based, have you also upgraded BerkeleyDB at the
same time? If so, what version of BDB are you using now?

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