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From Gert Kello <gert.ke...@gmail.com>
Subject Re: Svn 1.9 repository 20% bigger than svn 1.8 repository
Date Thu, 28 Jan 2016 13:01:14 GMT
On 28 January 2016 at 14:47, Bert Huijben <bert@qqmail.nl> wrote:

>
>
> > > I have a svn 1.9 repository, created with svnsync, that has ~150000
> > > revisions and size about 45 GB. Due to some issues in
> svn-all-fast-export I
> > > wanted to have svn 1.8 version repository so I downgraded it by doing
> > > svnadmin (v 1.9) dump /svnadmin (v 1.8) load cycle. I was surprised
> that
> > > the size of v 1.8 repository is "only" 37.5 GB
> > > I tried to compare content of db\revs folder: some files are bigger in
> 1.8
> > > repo, some in 1.9 repo.
>
> Just to be sure: that 1.9 repository was recently created with 1.9 and then
> loaded via svnsync?
>
>
Exactly.


> Did you try to svnadmin load the same repository into a new 1.9 repository?
> (I would be interested in that result). 1.9 should also be able to create
> repositories compatible with older versions.
>

I know about this ability... But still preferred to use 1.8 binaries. If
anyone is interested and I have time, could try to do the load with 1.9
binaries into 1.8 repository.

At the moment I'm loading 1.8 repo into 1.9 one via dump|load. I'll look if
starting parallel dump|load would be Ok for hardware, if not I'll start it
after this one completes.


> You might have a very interesting testcase at hand :-)
>
> But with such a size repository it might be hard to test different
> variants.
>
>
That's true... Well, dump & load from 1.9 to 1.8 took ~14.5 hours so some
combinations can be tested.


Gert

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