On 06/04/2013 11:04 AM, Stefan Priebe wrote:
Am 04.06.2013 17:23, schrieb Sage Weil:
On Tue, 4 Jun 2013, Stefan Priebe - Profihost AG wrote:
Hi,
is there a way to flatten the rbd export-diff to a "new" image FILE. Or
do i always have to:
rbd import "OLD BASE IMAGE"
rbd import-diff diff1
rbd import-diff diff1-2
rbd import-diff diff2-3
rbd import-diff diff3-4
rbd import-diff diff4-5
...
and so on?
I would like to apply the diffs on local disk and then import the new
file.
Not currently. The format is very simple, though; it should be pretty
simple to implement a subcommand in the rbd tool to do it.
Oh my C skills are more than limited ;-( i could do it in perl ;-) Is
there a format description?
Yeah, it should be pretty easy to decode in any language:
http://ceph.com/docs/master/dev/rbd-diff/
You could also use the python or C bindings for librbd's diff_iterate to
create a different format if you wanted.
Josh
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