Re: [Duplicity-talk] Re: Duplicity using more space than needed?

[Fabiano Bonin]

Ok, count on me if you need to do some testing.

Unfortunatelly i don't code in python, otherwise i would be glad to help.

Regards,

Fabiano.

On 6/29/07, Kenneth Loafman <address@hidden> wrote:
> Thanks for the testcase.  I'm going to add it to the tests in the
> repository, once I get this fixed.
>
> Both duplicity and rdiff use librsync for deltas, so the problem has to
> be in that we handle the parameters or the calls differently than rdiff.
>
> ...Ken
>
> Fabiano Bonin wrote:
> > Look at this test case. I think it reproduces the problem.
> >
> > First, run the script 'testcase_script.sh' attached to this message.
> > It will create the following files in /var/tmp/testcase:
> >
> > snapshot1 (48MB)
> > snapshot2 (48MB)
> > snapshot1.sig (287KB)
> > snapshot2.delta (20MB)
> >
> > Comment: for each block of 5000 bytes of snapshot1, i changed the last
> > 25 bytes in snapshot2. All bytes where generated randomly.
> >
> > snapshot2.delta is the uncompressed rdiff delta file between snapshot1
> > and snapshot2.
> >
> > Then, run the following commands:
> >
> > ==============================
> > export PASSPHRASE=testcase
> >
> > rm /var/tmp/testcase_source/* -rf
> > rm /var/tmp/testcase_destination/* -rf
> >
> > cp snapshot1 /var/tmp/testcase_source/snapshot
> >
> > duplicity /var/tmp/testcase_source file:///var/tmp/testcase_destination
> >
> > du --max-depth 1 -h /var/tmp/testcase_destination
> >
> > rm -f /var/tmp/testcase_source/snapshot
> >
> > cp snapshot2 /var/tmp/testcase_source/snapshot
> >
> > duplicity /var/tmp/testcase_source file:///var/tmp/testcase_destination
> >
> > du --max-depth 1 -h /var/tmp/testcase_destination
> > ==============================
> >
> > Here, in the second pass, the destination size change is 47.9MB. The
> > last 'du' command will show the folder /var/tmp/testcase_destination
> > with 97MB.
> >
> > Regards,
> >
> > Fabiano.
> >
> >
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