DeleteIntermediate
From RdiffBackupWiki
Let me also support this feature. I would like it to be implemented similarly to other backup applications like rlbackup | and [backup3l || http://alexandre.gerussi.free.fr/backup3l.html]. Rlbackup may serve as useful example in particular since it also uses rsync. Personally, I would like to be able to save daily backups for 7 days, and then backup 8, 16, 32, 64, 128, 256... days old.
-- [[ AlbertoLusiani|Alberto Lusiani |]] <alusiani (at) gmail.com>
others have expressed the desire to be able to remove an intermediate increment while leaving (and, I presume, adjusting) those on either side of it in the sequence.
-- Andrew Bressen <bressen@savannah.nongnu.org>
Just more motivation: the old UNIX dump/restore policy of saving dailies, weeklies, monthlies was very effective. But there was a way to get rid of the dailies before, say, 2 wks ago, the weeklies before, say 3 months ago, etc. This is why I'd like this new feature. (dump/restore itself (a) is not correct on Linux; and (b) isn't so hot for backing up to remote site. :-) )
-- David Slocombe <dns@exegenix.com>
This feature would be easier if librsync supported an operation to merge diffs. For instance, if diff D1 is a diff from file A to file B, and diff D2 is a diff from file B to file C, Merge(D1, D2) would be a diff from file A to file C.
However, adding this feature would be quite doable even without help from librsync (which doesn't look forthcoming). The only tricky part is doing it in such a way that old data would be safe, even if errors happened in the process.
-- Ben Escoto <bescoto@stanford.edu>
Isn't that just something where you need to do alot of failsafe checkings e.g. that is compare the results given by patching D1 and then D2, with the result of patching with D(1,2) -- ErikJohansson
I would be very interested in this feature. Are there any ongoing developments on this topic? I would like to assist... I am not a great Python programmer and also not intimate with the code, but I am able to do extensive testing on this feature. Any estimate on how many hours this feature is going to cost by one of the core developers? Contact me on this. I am serious about it and might be willing to make a monetary donation if this is implemented on reasoably short term...
-- Gerard van Dijnsen (OpenBizz) <gerard@openbizz.nl>
I don't know if it helps, but I'm joining the choir - please gives us an option to delete intermediates just as we can delete backups that are older than 2 days, 2 weeks and so. I also find the dump/restore argument strong. (I'm doing backups every half hour and then even the log files start to become a problem.)
-- Hans Fredrik Nordhaug <hansfn@gmail.com>
Me too - I'd like to back up our main server every hour, but the incremental log files are 10 MB each. Over the last five months, we have 7 GB of reverse diffs of changed files, and 20 GB of log files.
-- Chris Wilson <chris+rdiff-backup@qwirx.com>
+1 from me. I would like to delete intermediate snapshots so that I can implement the BackupLevels idea.
-- Patrick Ohly <patrick.ohly@gmx.de>
+1. I am just investigating snapshots for both work and home computers, and while rdiff-backup looks a better match for me because of the deltas, the lack of the ability to delete intermediate versions may turn out to be a showstopper. Currently creating both to see which one wins :)
-- Tim Connors <tconnors@NOSPAMTHANKS.astro.swin.edu.au>
+1. I also would like the ability to delete intermediate backups. A simple backup scheme (keep one backup for each day of the past week, one backup for each week of the past month, one backup for each month of the past year, and one backup for each previous year) would be sufficient.--Jthurn 04:43, 30 August 2008 (EST)
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