Mailing-List: contact users-help@subversion.apache.org; run by ezmlm
Precedence: bulk
MIME-Version: 1.0
In-Reply-To: <975001d159ca$030db1b0$09291510$@qqmail.nl>
References: 
 <CA+L=CgV_LVRjR_7+cuwOt4HaR+bQA16i8QaZDgjF8Dn5NAEiOQ@mail.gmail.com>
	<878u39ev70.fsf@wandisco.com>
	<975001d159ca$030db1b0$09291510$@qqmail.nl>
Date: Thu, 28 Jan 2016 15:01:14 +0200
Message-ID: 
 <CA+L=CgVykvOiThY+AJWkMKzaotcB0YkfBj=wJi+CQaa8sQwQrg@mail.gmail.com>
Subject: Re: Svn 1.9 repository 20% bigger than svn 1.8 repository
From: Gert Kello <gert.kello@gmail.com>
To: Bert Huijben <bert@qqmail.nl>
Cc: "users@subversion.apache.org" <users@subversion.apache.org>,
 Philip Martin <philip.martin@wandisco.com>
Content-Type: multipart/alternative; boundary=001a1142480e82b170052a648334

--001a1142480e82b170052a648334
Content-Type: text/plain; charset=UTF-8

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

--001a1142480e82b170052a648334
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">=
On 28 January 2016 at 14:47, Bert Huijben <span dir=3D"ltr">&lt;<a href=3D"=
mailto:bert@qqmail.nl" target=3D"_blank">bert@qqmail.nl</a>&gt;</span> wrot=
e:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-l=
eft:1px #ccc solid;padding-left:1ex"><span class=3D""><br>
<br>
&gt; &gt; I have a svn 1.9 repository, created with svnsync, that has ~1500=
00<br>
&gt; &gt; revisions and size about 45 GB. Due to some issues in<br>
svn-all-fast-export I<br>
&gt; &gt; wanted to have svn 1.8 version repository so I downgraded it by d=
oing<br>
&gt; &gt; svnadmin (v 1.9) dump /svnadmin (v 1.8) load cycle. I was surpris=
ed that<br>
&gt; &gt; the size of v 1.8 repository is &quot;only&quot; 37.5 GB<br>
&gt; &gt; I tried to compare content of db\revs folder: some files are bigg=
er in<br>
1.8<br>
&gt; &gt; repo, some in 1.9 repo.<br>
<br>
</span>Just to be sure: that 1.9 repository was recently created with 1.9 a=
nd then<br>
loaded via svnsync?<br>
<br></blockquote><div><br></div><div>Exactly.<br></div><div>=C2=A0</div><bl=
ockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #=
ccc solid;padding-left:1ex">Did you try to svnadmin load the same repositor=
y into a new 1.9 repository?<br>
(I would be interested in that result). 1.9 should also be able to create<b=
r>
repositories compatible with older versions.<br>
</blockquote><div><br></div><div>I know about this ability... But still pre=
ferred 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.<br><br></div><div=
>At the moment I&#39;m loading 1.8 repo into 1.9 one via dump|load. I&#39;l=
l look if starting parallel dump|load would be Ok for hardware, if not I=
9;ll start it after this one completes.<br></div><div>=C2=A0</div><blockquo=
te class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc so=
lid;padding-left:1ex">
You might have a very interesting testcase at hand :-)<br>
<br>
But with such a size repository it might be hard to test different variants=
.<br>
<br></blockquote></div><br>That&#39;s true... Well, dump &amp; load from 1.=
9 to 1.8 took ~14.5 hours so some combinations can be tested.<br></div><div=
 class=3D"gmail_extra"><br><br></div><div class=3D"gmail_extra">Gert<br></d=
iv></div>

--001a1142480e82b170052a648334--