On 22/01/16 04:43, Les Mikesell wrote: > On Thu, Jan 21, 2016 at 10:13 AM, Gandalf Corvotempesta > <gandalf.corvotempe...@gmail.com> wrote: >> 2016-01-21 16:30 GMT+01:00 Les Mikesell <lesmikes...@gmail.com>: >>> V4 does it backwards from v3. The last backup is always filled and >>> the older ones are changed to reverse deltas. It must move/copy >>> things around to arrange that. And the full and incremental runs >>> aren't tied to keeping filled/unfilled backups anymore. But, I still >>> don't see why any expired already. >> Another this to know is why BPC is fsck every backups every time. >> After each backup, it will run fsck. It should run just for the last >> executed backup, as previously ones was alreday checked. >> >> But is running fsck every time for each backup that I have, taking >> many many hours. Like now: >> srv1 is fsck #1, then #2, then #4. after all, it will run a new backup >> and start again the fsck >> > I see some earlier mail list messages saying that is normal: > http://sourceforge.net/p/backuppc/mailman/message/34478542/ > I guess that's when it removes files that are not in any current > backup. Apparently it only takes a long time when you have a very > large number of files. > Yes, it is "normal" but it doesn't seem to be ideal, and I don't think it should be required. I started looking at this, but then got side tracked with the more serious bug in rsync_bpc. Will eventually come back to this, but it means trying to understand the underlying principles of how BPC works on the pool and pc trees.
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