Re: Doubled dates in old repositories

[Dominic Raferd]

On Tue, 21 Apr 2020 at 07:17, Eric Lavarde <address@hidden> wrote:

>
>
> On 20/04/2020 22:54, Gregor Zattler wrote:
> > Hi Eric,
> > * "Eric L. Zolf" <address@hidden> [2020-04-20; 07:43]:
> >> How to detect (under Linux): run `cd MY_BACKUP_REPO; ls -1
> >> rdiff-backup-data/mirror_metadata.* | sed -e 's/^.*mirror_metadata\.//'
> >> -e 's/\.[a-z]*.gz$//' | uniq -cd` -> if the output is NOT empty, you
> >> have the issue.
> >
> > with this command line I see no output on two repos dating from
> > 2012 for which rdiff-backup -l | wc -l shows 2386 and 2499 lines
> > respectively.
> >
> > rdiff-backup is now on version 1.2.8 and both repos are local
> > ones (meaning there was never a version mismatch of local and
> > remote rdiff-backup programs involved).
>
>
> OK, noted. Thanks.
>
> So we have currently a timespan of 2009-2011 for this issue.
>
> KR, Eric
>

Despite the failed verifications, I have successfully recovered a largish
(>150MB) file from December 2008 in the impacted repository. As there are
2806 later versions of this file (with changes in this file occurring
between most of these versions), the recovery presumably involved applying
2806 reverse-diffs to the current file - pretty impressive work by
rdiff-backup! (Sorry, still on v1.2.8)