Dear list,
I am very happy with BackupPC, except that it hasn't been able to
back up my workstation for more than 3 months. It started a full
backup on 14 May 2012, shortly after I had stored a set of large
files to disk. Since my workstation is behind an ADSL connection,
the backup eventually timed out and was stored as a partial backup
(#507).
Every day since then, the full backup started again, and every day
since then, it has been timing out.
This is especially annoying since the exact same files have already
been backed up to the server once from another host, so one would
like to assume that BackupPC does not need to transfer them all over
again.
I understand that the rsync protocol does not allow this and
a BackupPC client would be needed to shortcut uploading of files
that already exist on the server.
However, the status quo seems broken to me. If BackupPC times out on
a backup and stores a partial backup, it should be able to resume
the next day. But this is not what seems to happen. The log seems to
suggest that each backup run uses the previous full backup (#506,
not the partial backup #507) as baseline:
full backup started for directory / (baseline backup #506)
I only just turned on verbose logging to find out what's actually
going on and whether there is any progress being made, but to me it
seems like BackupPC is failing to build upon the work done for the
last partial backup and keeps trying again and again.
Has anyone seen this behaviour and do you have any suggestions how
to mitigate this problem?
--
martin | http://madduck.net/ | http://two.sentenc.es/
be careful of reading health books -- you might die of a misprint.
-- mark twain
spamtraps: madduck.bogus AT madduck DOT net
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