Hi,
looks like you're backing up '/', but also have the '--one-file-system'
option enabled. As probably most of the interesting folders below root are
mounted, that option results in rsync ignoring all of them and you get
empty backups. See https://github.com/backuppc/backuppc/issues/437
Regards,
Guillermo
On Mon, Jun 2, 2025, 20:13 Matthew Pounsett <m...@conundrum.com> wrote:
> I'm trying to track down why we seem to be getting empty backups on our
> backuppc server. What's weird is that we have no errors. There doesn't
> seem to be a debug setting for logs, and I think I've run out of things to
> look at.
>
> Some recent FULL backups have completed in around 10 seconds, which is
> impossible. We're using rsync over ssh, and have a small selection of
> excluded directories in order to avoid some things that are either too big,
> too volatile, or already have redundancies.
>
> I can ssh from the backuppc server to the clients as the backuppc user
> (although I haven't seen such errors, so no surprise that works). I'm also
> not getting the sort of errors I'd expect if sudo were broken, but just in
> case I opened up the sudoers rule on a target server to allow rsync with
> any arguments, but no change in behaviour.
>
> Here are the config options I can find that look like they might be
> relevant. I've also included the current log for the client I've been
> testing with, including a couple of attempted full backups.
>
> What am I missing here?
>
> $Conf{XferMethod} = 'rsync';
> $Conf{RsyncClientPath} = 'sudo /usr/bin/rsync';
> $Conf{RsyncBackupPCPath} = '/usr/libexec/backuppc-rsync/rsync_bpc';
> $Conf{RsyncSshArgs} = [
> '-e',
> '$sshPath -l backuppc'
> ];
> $Conf{RsyncShareName} = [
> '/'
> ];
> $Conf{RsyncArgs} = [
> '--super',
> '--recursive',
> '--protect-args',
> '--numeric-ids',
> '--perms',
> '--owner',
> '--group',
> '-D',
> '--times',
> '--links',
> '--hard-links',
> '--delete',
> '--delete-excluded',
> '--one-file-system',
> '--partial',
> '--log-format=log: %o %i %B %8U,%8G %9l %f%L',
> '--stats'
> ];
> $Conf{RsyncArgsExtra} = [];
> $Conf{RsyncFullArgsExtra} = [
> '--checksum'
> ];
> $Conf{RsyncIncrArgsExtra} = [];
> $Conf{BackupFilesExclude} = {
> '*' => [
> '/bigfs*',
> '/data',
> '/dev',
> '/mnt',
> '/pool*',
> '/proc',
> '/run',
> '/sys',
> '/var/lib/postgresql',
> '/var/tmp'
> ]
> };
>
>
> 2025-06-01 06:00:00 incr backup started for directory /
> 2025-06-01 06:00:13 incr backup 1895 complete, 3767 files, 195896461
> bytes, 0 xferErrs (0 bad files, 0 bad shares, 0 other)
> 2025-06-01 06:00:13 Removing unfilled backup 1877
> 2025-06-01 06:00:13 BackupPC_backupDelete: removing #1877
> 2025-06-01 06:00:13 BackupPC_backupDelete: No prior backup for merge
> 2025-06-01 06:01:03 BackupPC_refCountUpdate: host host.example.com got 0
> errors (took 50 secs)
> 2025-06-01 06:01:03 Finished BackupPC_backupDelete, status = 0 (running
> time: 50 sec)
> 2025-06-02 06:00:01 incr backup started for directory /
> 2025-06-02 06:00:08 incr backup 1896 complete, 3767 files, 195896461
> bytes, 0 xferErrs (0 bad files, 0 bad shares, 0 other)
> 2025-06-02 06:00:08 Removing unfilled backup 1878
> 2025-06-02 06:00:08 BackupPC_backupDelete: removing #1878
> 2025-06-02 06:00:08 BackupPC_backupDelete: No prior backup for merge
> 2025-06-02 06:00:57 BackupPC_refCountUpdate: host host.example.com got 0
> errors (took 48 secs)
> 2025-06-02 06:00:57 Finished BackupPC_backupDelete, status = 0 (running
> time: 49 sec)
> 2025-06-02 20:42:01 full backup started for directory /
> 2025-06-02 20:42:59 full backup 1897 complete, 3766 files, 144820510
> bytes, 0 xferErrs (0 bad files, 0 bad shares, 0 other)
> 2025-06-02 20:42:59 Removing unfilled backup 1880
> 2025-06-02 20:42:59 BackupPC_backupDelete: removing #1880
> 2025-06-02 20:42:59 BackupPC_backupDelete: No prior backup for merge
> 2025-06-02 20:43:48 BackupPC_refCountUpdate: host host.example.com got 0
> errors (took 49 secs)
> 2025-06-02 20:43:48 Finished BackupPC_backupDelete, status = 0 (running
> time: 49 sec)
> 2025-06-02 21:04:47 full backup started for directory /
> 2025-06-02 21:04:50 full backup 1898 complete, 3766 files, 144820553
> bytes, 0 xferErrs (0 bad files, 0 bad shares, 0 other)
> _______________________________________________
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> BackupPC-users@lists.sourceforge.net
> List: https://lists.sourceforge.net/lists/listinfo/backuppc-users
> Wiki: https://github.com/backuppc/backuppc/wiki
> Project: https://backuppc.github.io/backuppc/
>
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