Hello.
Dne 2.11.2015 v 1:11 Adam Goryachev napsal(a):
> Hi,
>
> On 02/11/15 05:56, František Starý wrote:
>> Hello backuppc gurus.
>>
>> I've upgraded backuppc from 3.3.0-1ubuntu1 to 4.0.0alpha3. Now I have
>> the following issues with some of my backuped hosts since the update.
>> All my hosts are the same machine on the same network - just different
>> folders with different backup settings.
>> Host "mail" that backups about 190GB of small files (maildirs) has never
>> successfully backed up since the upgrade (14 days). The error is:
> Some generic comments that I found when doing the same upgrade:
> 1) Make sure you are not overriding the new default rsync arguments.
> Changing/adding/removing them can definitely cause problems. Start with
> the default, and then adjust after you know it is working. Also, use the
> new RsyncArgsExtra (or similar) variable instead of overwriting the default.
I've removed my custom Rsync argument modifications, restarted backuppc
daemon and rerun the backup. The result is unchanged - failure.
> 2) I found backups do not always work properly when backing up files
> that existed in an old v3.x backup. My solution was to delete the backup
> folders, and allow new backups to start with v4.x.
I've tried to rename folder /var/lib/backuppc/pc/mail to
/var/lib/backuppc/pc/mail.old and rerun the backup. The result is
unchanged - failure.
> Those two changes have solved most of my problems with v4.x
>
> My one remaining problem is that backups of very large number of files
> (in one directory, or just per host, not sure) means that the backup
> never succeeds. I often get these errors:
> [4851230.076630] rsync_bpc[16712]: segfault at 7f573b73eb28 ip
> 00000000004473af sp 00007ffce3b9c080 error 4 in rsync_bpc[400000+75000]
> [4854892.163951] rsync_bpc[16935]: segfault at 7f375b0dbb28 ip
> 00000000004473af sp 00007ffc0ffa4f50 error 4 in rsync_bpc[400000+75000]
> [4856658.987895] rsync_bpc[17043]: segfault at 7f5130151b28 ip
> 00000000004473af sp 00007ffedc7983b0 error 4 in rsync_bpc[400000+75000]
> [4858478.492391] rsync_bpc[17268]: segfault at 7fb1c53beb28 ip
> 00000000004473af sp 00007fff55d1cff0 error 4 in rsync_bpc[400000+75000]
> [4860262.896093] rsync_bpc[17486]: segfault at 7f0f3bad0b28 ip
> 00000000004473af sp 00007fffb82e86f0 error 4 in rsync_bpc[400000+75000]
> [4862071.079868] rsync_bpc[17718]: segfault at 7fa6a7cdbb28 ip
> 00000000004473af sp 00007ffcca0f7050 error 4 in rsync_bpc[400000+75000]
> [4864030.543342] rsync_bpc[17969]: segfault at 7efcf242db28 ip
> 00000000004473af sp 00007ffd5d4dd830 error 4 in rsync_bpc[400000+75000]
> [4880848.314076] rsync_bpc[18779]: segfault at 7efe490b4e28 ip
> 00000000004473af sp 00007ffc3fda1050 error 4 in rsync_bpc[400000+75000]
>
> Which seem to happen each time the backup fails.
>
> So, check dmesg output and see if you have this issue too.
Bingo. I have the same error in "dmesg -T" output:
[Mon Nov 2 18:53:41 2015] rsync_bpc[910]: segfault at b49fabec ip
080918ca sp bfdc4a60 error 4 in rsync_bpc[8048000+75000]
But I get this error even if i use default backup options with no
previous V3 or V4 backups. :-(
If i do an fresh backup (default options, deleted the old backup folder)
using the tar method (so the rsync_bps is NOT used), I'm unable to
finish the backup too:
backuppc@backup:~$ /usr/share/backuppc/bin/BackupPC_zcat
/var/lib/backuppc/pc/mail/XferLOG.0.z |tail
Got fatal error during xfer (BackupPC_tarExtract exited with fail status 11)
Backup aborted (BackupPC_tarExtract exited with fail status 11)
BackupFailCleanup: nFilesTotal = 0, type = full, BackupCase = 6, inPlace
= 1, lastBkupNum =
BackupFailCleanup: inPlace with no new files... no cleanup
Running BackupPC_refCountUpdate -h mail -f on mail
xferPids 3270
BackupPC_refCountUpdate: host mail got 0 errors
BackupPC_refCountPrint: total errors: 0
xferPids
Finished BackupPC_refCountUpdate (running time: 24 sec)
Any ideas? I'm considering rollback to V3 backuppc :-(.
With regards,
Frantisek.
> Regards,
> Adam
>
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