On Tue, Jun 26, 2007 at 11:32:06AM -0500, Charles Duffy wrote: > Xavier Bertou wrote: > > I must agree with what Frederik said. rdiff-backup works just fine > > when rsync works just fine, ie when you don't need a backup except for > > stupid user deletion of files. When real bad things happen, > > rdiff-backup doesn't handle any errors. File I/O error? The whole > > backup fails, and I get zillions of errors on checking the > > incrementals. I had at some time a very bad filesystem issue which > > scared the kernel whenever I was trying to access a file, Linux just > > killing the process. Of course this never had happened to me in the > > last 10 years of Unix administration, but it happened a few months > > ago, and again, no backup for a few days until I figured it out, and > > no way to recover the incrementals. > > I have a system of cron jobs and wrapper scripts surrounding my > rdiff-backup installation which kills dead processes, reports on which > backups succeeded and failed, ensures sure that --check-destination-dirs > is run on any folder that needs it before any new backup is started, and > disallows multiple connections attempting to backup from or restore to > the same host at once. > > rdiff-backup is indeed not quite as robust as it could be > out-of-the-box, and it does indeed seem to trigger some issues in ext3, > but with appropriate surrounding infrastructure it WORKSFORME.
Of course this begs the question: why isn't that stuff built in to rdiff? The big thing I'm missing as compared to rsync is the ability to deal with unreliable links. I normally won't backup my laptop when I'm on the road because it's a royal PITA anytime a backup fails partway though. Granted, I've been lucky enough that that's never taken any manual intervention once I got everything setup properly to get an initial backup, but it still takes a long time to roll everything back. And really I'd rather it not just roll everything back, since that means I just have to re-do all the work that the failed backup had already accomplished. -- Decibel!, aka Jim C. Nasby, Database Architect [EMAIL PROTECTED] Give your computer some brain candy! www.distributed.net Team #1828
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