Wondering if anything has had time to think about this question. I am
still having the issue...
thanks,
Steve
On Thu, Jul 23, 2009 at 5:45 PM, Steve<leperas AT gmail DOT com> wrote:
> Hello,
>
> I am running Backuppc 3.1.0 with ubuntu 9.04 now, and since the
> upgrade I've developed a problem with backuppc. During full backups,
> the backup stalls and leaves a zombie. The backup just sits (as shown
> below) until I kill the ssh process or restart backuppc. I have not
> seen this problem with smb clients, and have not seen it with inc
> backups (although the incs take a lot less time so maybe it will
> happen sometime...), just the full with rsync.
> -------------------
> 32167 backuppc 25 5 0 0 0 Z 0 0.0 5:21.56
> BackupPC_dump <defunct>
> 32321 backuppc 25 5 7168 3600 1164 S 0 0.2 0:01.16 ssh
> 32587 backuppc 25 5 79768 73m 1220 S 0 3.7 2:31.20 BackupPC_dump
> ----------------------------
>
> The status page says:
> -----------------
> localhost full backuppc 7/23 12:00 BackupPC_dump
> localhost
> 32167 32321, 32587
> --------------------
>
> The computer doesn't crash or appear to have any problems, and if i
> watch the whole time memory usage never goes above 10-20% total. When
> I kill the ssh process, the status page goes back to showing nothing,
> and a partial backup is left as shown below on the home page for the
> backup:
>
> ------------------
> 848 partial yes 0 7/23 00:12 112.8 0.5
> /home/backup/pc/localhost/848
> ---------------
>
> If I keep trying, eventually it makes it through the whole backup, as
> shown here:
>
> ---------------
> 848 full yes 0 7/23 15:04 152.4 0.1
> /home/backup/pc/localhost/848
> -----------------
>
> Since the backup eventually completes, and sometimes has to only be
> restarted once or twice while other times 6 or 7 times, I can't figure
> out where to start debugging. It is reproducible in that I haven't
> had a successful full backup without at least one restart since the
> upgrade.
>
> If some of you have some theories, I will be happy to capture
> additional info about what is going on when this happens...I am not
> sure offhand what info/logs/files would be important. It does not
> seem like a hardware problem to me. The log itself ends like this:
> ----------------
> same 764 506/500 49664
> home/common/LabView/Gas_Swirl_Process_Control/flame_frf/dyn_data/WriteData2/WriteData2.opt
> Parent read EOF from child: fatal error!
> Done: 0 files, 0 bytes
> Got fatal error during xfer (Child exited prematurely)
> Backup aborted (Child exited prematurely)
> Not saving this as a partial backup since it has fewer files than the
> prior one (got 2 and 0 files versus 5)
> -------------------
> However i suspect that error is from me killing the ssh not whatever
> caused things to stall. i can't find any errors in the log when it is
> stalled but before i kill processes as backuppc seems to think things
> are running fine even though they have stalled out...
>
> I am wondering if there is some kind of timeout or permission or other
> default that has changed with ssh or rsync on the upgrade that is
> causing this...however since it works for increments and the transport
> is the same for those I don't see how it could be the case...
>
> Also, is there a difference when the process is started from the cgi
> interface vs. starting itself on schedule? When it succeeds it has
> always been after one or more restarts from the cgi...
>
> anyway thanks, looking forward to hearing ideas from you guys on where to
> look.
>
> Steve
>
--
"It turns out there is considerable overlap between the smartest bears
and the dumbest tourists."
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