Hi backuppc users,
I have seen this before, and then it was usually rsync trying to sync
files that were currently being written (and not part of excluded files
when they should be), but this time I'm a bit at a loss and hoping for
input from the community.
On this particular host that is seeing/causing the problem, the last
successful backup was on July 12th:
2023-07-12 23:04:34 full backup 858 complete, 135774 files, 7468004132 bytes, 0
xferErrs (0 bad files, 0 bad shares, 0 other)
Since then, none of the backups, incremental or full are succeeding and
the phenomenon that I'm seeing is that, after starting a backup (using
e.g. backuppc@khoros:~$ /usr/share/backuppc/bin/BackupPC_dump -v -f
host.hypervisor.srv.1024.lu), rsync starts listing files (same, create
d, pool) and at some point, stops doing that and instead starts dumping
the content of those files to the screen. I'm assuming it might be to
stderr (I actually haven't tried piping it elsewhere yet to confirm),
but every time more content is printed, it includes the terminal bell
going off.
I know that when this happens, the backup will not succeed, so at times,
I ^C out of it, and the summary I am seeing in such a case is
Sending csums, cnt = 407327, phase = 1
Parent read EOF from child: fatal error!
Done: 0 files, 0 bytes
Got fatal error during xfer (Child exited prematurely)
Backup aborted by user signal
Not saving this as a partial backup since it has fewer files than the
prior one (got 0 and 0 files versus 9)
dump failed: Child exited prematurely
link host.hypervisor.srv.1024.lu
I have not yet been able to spot when exactly it goes from file-listing
to dumping file contents because I simply can't spend the whole day
looking at a single terminal window, but I can see that the content that
is currently being output seems to be mails. I have uploaded some
samples here (https://cloud.tentwentyfour.lu/s/ZfQXJKQc3r9ReFm) but
there isn't much to see, given that it's just mime-encoded mails and
attachments.
Nothing (rsync or other) has been upgraded on the client machine on the
12th or after and the only thing that has changed on the backuppc server
is a library for parsing JSON:
Start-Date: 2023-07-12 13:21:10
Commandline: /usr/bin/unattended-upgrade -v
Upgrade: libyajl2:amd64 (2.1.0-3+deb10u1, 2.1.0-3+deb10u2)
End-Date: 2023-07-12 13:21:13
I guess I'll try to pipe the process' output to files so that I may be
able to spot when and/or where exactly the switch from listing to
dumping happens, but any ideas from your side are more than welcome.
Regards,
David
--
*TenTwentyFour S.à r.l.*
www.tentwentyfour.lu <https://www.tentwentyfour.lu>
*T*: +352 20 211 1024
*F*: +352 20 211 1023
1 place de l'Hôtel de Ville
4138 Esch-sur-Alzette
_______________________________________________
BackupPC-users mailing list
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/
