RE: Re: Backup repository corrupted

If you're using FSFS, you could try this filthy trick on your backup repo:

(At your own risk...)

- delete the file db/revs/84333
- edit the file db/current and change the 84333 to 84332
- change the revision 0 revprop 'svn:sync-last-merged-rev' to 84332
- cross your fingers, and run svnadmin verify over the recovered repository.

I'd probably still do a recovery from backups - wouldn't feel comfortable with
a repository that had been hand-hacked like this - but it might keep you
going with a workable live backup in the interim. Restoring an 84000 revision
repository isn't a trivial task.

Incidentally, how did this happen? You aren't running svnsync from a
post-commit hook by any chance?

regards,

--
Jon Ashley
________________________________
        From: Murli Varadachari [mailto:mvaradachari_at_facebook.com]
        Sent: 22 February 2008 18:00
        To: Paul Koning
        Cc: users_at_subversion.tigris.org; Internal Use
        Subject: Re: Backup repository corrupted
        Thanks Paul — I was hoping there would be some other faster option but (sigh!) I guess in my case (3) is probably the best option.
        There may be another issue though — the rev# 0 properties on the restored backup would still indicate that last merged version as being 84333 [ even if I dumped and restored up to 84332 ]. Does this have to be fixed manually too?
        murli
        On 2/22/08 9:40 AM, "Paul Koning" <Paul_Koning_at_Dell.com> wrote:
                >>>>> "Murli" == Murli Varadachari <mvaradachari_at_facebook.com> writes:
                 Murli> I am doing a backup of my production svn repository using
                 Murli> svnsync ‹ somehow last night a new version got committed to
                 Murli> the backup repository directly. AT this point all synsync
                 Murli> operations fail.
                 Murli> Here is the error message
                 Murli> [root_at_svn001.sf2p ~]# svnsync synchronize --username root
                 Murli> --password root svn://xxxx.foo.com/svnroot svnsync:
                 Murli> Destination HEAD (84333) is not the last merged revision
                 Murli> (84332); have you committed to the destination without using
                 Murli> svnsync?
                 Murli> Is there a quick way to fix this.
                I'm not sure about "quick"...
                Some possible approaches:
                1. Rename the destination repository, create a new one, re-sync from
                   scratch.
                2. Restore from a backup of the destination directory, one that
                   doesn't include the bad rev, and re-sync to that.
                3. Use svndump to dump up to but not including the bad rev, svnload
                   that into a new repository, that's your "repaired" repository.
                        paul
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