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Re: FSFS packing: experiences?

From: Andy Levy <andy.levy_at_gmail.com>
Date: Thu, 18 Jun 2009 09:18:12 -0400

On Thu, Jun 18, 2009 at 08:44, Johan
Corveleyn<johan.corveleyn_at_uz.kuleuven.ac.be> wrote:
> Has anyone here used the FSFS packing feature of 1.6?
> http://subversion.tigris.org/svn_1.6_releasenotes.html#fsfs-packing
>
> - What are the experiences with this?
>
> - Any caveats, things to look out for?
>
> - Does it improve performance of certain operations (that are heavy on server-IO)? I would hope it improves log and annotate performance (these need to crawl a lot of rev files on the server). Does it?
>
> I'm also a little bit cautious because of the following sentence in the release notes:
> "Once a repository has been packed, there is no migration path back to an unpacked state [...]."
> Is there really no way to "unpack" (short of restoring backups)? No way to experiment with the feature then ... what if it goes wrong or performs worse?

I assume you'd be able to svnadmin dump, create a new repository, then
svnadmin load the dumpfile into that repository. Since svnadmin pack
isn't done automatically anywhere, this should leave you with an
unpacked repository.

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Received on 2009-06-18 15:19:14 CEST

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