On 11/29/2014 11:45 AM, Udo Rader wrote:
> On 11/23/2014 08:14 PM, Udo Rader wrote:
>> Hi,
>>
>> I've recently upgraded an old debian lenny server, where backuppc was
>> nicely and quietly doing backups in a "reasonable" amount of time.
>>
>> I terms of time, a full backup of *localhost* took about 6 hours.
>>
>> Now, after upgrading the box to the latest stable debian release and,
>> coming with that, backuppc 3.3.02, the backup of localhost now takes
>> more than 10 hours.
>>
>> Incremental backups are not very different, even they now take a little
>> less than 10 hours.
>>
>> The backup itself is about 180GB in size, so by any means 10 hours is
>> just weird.
>>
>> I understand, that the new backuppc version is not the only factor in
>> this equation, but maybe someone of you has any clue about what goes
>> wrong here.
> anyone ? :D
Reviving my old thread one last time ...
As it seems, I have found the reason/a partial solution for the
behaviour. Maybe some others can benefit from it, so I am sharing it to
the list.
Thoroughly investigating the logs, I found that my configuration for
localhost was missing those two essential options:
# remove extra shell escapes ($fileList+ etc.) that are
# needed for remote backups but may break local ones
$Conf{TarFullArgs} = '$fileList';
$Conf{TarIncrArgs} = '--newer=$incrDate $fileList';
without those options, tar would not treat the $incrDate correctly and
instead use a date that caused a full backup to be performed instead of
an incremental one.
Adding those two options made incremental backups a lot faster now, they
only take about 1 to 2 hours now.
The time increase for full backups from 6 to 10 hours remains, however,
but luckily those can be configured to run on weekends, so the
sideffects are limited to weekend staff :)
Regards
Udo
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