Backup Central

I am trying to use rdiff-backup from cron on an Ubuntu 10.04 server.  I have a script with this

  rdiff-backup /home/dan/data /media/sdb1/data
rdiff-backup /home/dan/data2 /media/sda1/data




crontab looks like this:



* 21 * * * sh /home/dan/backupscript.sh


Here is the error I get from cron


Fatal Error:  It appears that a previous rdiff-backup session with process id 10778 is still running....




running only the first line (commenting out the second) with the same results.  If I manually run the script (with no comments) it runs smoothly with no errors.  I don't understand what cron is doing to make this fail.


  
--
\Dan Nugent
CCA Technologies

On Wed, May 25, 2011 at 06:32:40PM -0500, Dan Nugent wrote:
I am trying to use rdiff-backup from cron on an Ubuntu 10.04 server. I have a
script with this


rdiff-backup /home/dan/data /media/sdb1/data
rdiff-backup /home/dan/data2 /media/sda1/data


crontab looks like this:

* 21 * * * sh /home/dan/backupscript.sh


Specify a value in the minute slot, e.g.,

0 21 * * * sh /home/dan/backupscript.sh

Otherwise your script will run every time cron is invoked during the
hour of 9:00 PM.

On a side note, I use lockf to prevent overlap on long running backups
(sometimes our backups go into gigabytes over a network line, so it is
possible for them to occasionally run for more than 24 hours).

e.g.,

0 3 * * * lockf -s -t 0 /var/run/rdiff-backup.lock /path/to/rdiff.sh

Best,

Chuck

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On 05/25/2011 06:32 PM, Dan Nugent wrote:
I am trying to use rdiff-backup from cron on an Ubuntu 10.04 server. I have
a script with this


rdiff-backup /home/dan/data /media/sdb1/data
rdiff-backup /home/dan/data2 /media/sda1/data


crontab looks like this:

* 21 * * * sh /home/dan/backupscript.sh

Here is the error I get from cron

Fatal Error: It appears that a previous rdiff-backup session with process
id 10778 is still running....

That crontab entry means "Run this command _every_minute_ during hour 21".
If you want the backup to run at the start of that hour, you want

0 21 * * * sh /home/dan/backupscript.sh

--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.


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Wiki URL: http://rdiff-backup.solutionsfirst.com.au/index.php/RdiffBackupWiki