On Sat, Feb 16, 2019 at 1:26 PM Andrei Borzenkov <arvidjaar@xxxxxxxxx> wrote: > > 15.02.2019 22:11, Chris Murphy пишет: > > The proven way it works, is as I've described, and many emails over a > > decade on this list, inferred from the man page, and the step by step > > recipe on the Wiki. > > > > Oh well. OK, you're right, I'm wrong, however your example is the only one I've seen in ~10 years that describes this alternative. > btrfs send computes differential stream. Whether it will be > "incremental" or not depends on how you are using it. Yes, it's a difference computation, but the 'man btrfs-send' page explicitly says incremental which is not the same thing. Also adding 'btrfs receive' is important to test your example. I've seen 'btrfs send' succeed where 'btrfs receive' complains. >Stream contains differences between the first and the > second stream, where order does matter. "Incremental" implies temporal > ordering between two snapshots which does not exist on "btrfs send" > level and must be ensured by tools that use "btrfs send/receive". It's fine to have this alternative explanation. However the existing 'man btrfs-send' page says there are two modes: full and incremental. -- Chris Murphy
