duplicity-team team mailing list archive

[Michael Terry <mike@xxxxxxxxxxx>]

Is there a nice overview of the format/syntax/details of the sigtar
format?  It's just librsync's checksum data right?  And with instructions
for "copy 13 bytes from basis file" or "add these 32 bytes"?

It'd help me understand how these bugs might occur if I knew exactly what
was happening with the sigtar.

-mt


On 20 September 2013 09:52, Kenneth Loafman <kenneth@xxxxxxxxxxx> wrote:

> Will take another look at restart and so forth and we can compare notes
> later.  There is probably a very simple fix for this, the problem is
> finding it.
>
>
>
> On Fri, Sep 20, 2013 at 8:47 AM, <edgar.soldin@xxxxxx> wrote:
>
>> On 20.09.2013 15:41, Michael Terry wrote:
>> > So as I speculate in a recent merge [1], I think bug 1155345 <
>> https://code.launchpad.net/bugs/1155345>, bug 720525 <
>> https://code.launchpad.net/bugs/720525>, and bug 662442 <
>> https://code.launchpad.net/bugs/662442> may all have the same underlying
>> cause: a missing diff or snapshot entry in the chain.
>> >
>> > I also imagine that this is due to a bug when restarting a backup, just
>> because that seems likely with this sort of issue.
>> >
>> > Maybe a file that has a diff entry in sigtar.part has its actual diff
>> contents in the vol file deleted when resuming?  (We do delete the last
>> volume when resuming in case it didn't finish.)  But I wasn't able to
>> create the situation manually.
>> >
>> > I just figured I'd ask the brain trust if they could brainstorm any
>> ways this situation could occur...  It would be lovely to kill all these
>> long-standing bugs in one fell swoop.
>> >
>> > [1]
>> https://code.launchpad.net/~mterry/duplicity/catch-seq-copy-error/+merge/186106<
>> https://code.launchpad.net/%7Emterry/duplicity/catch-seq-copy-error/+merge/186106
>> >
>> >
>> > -mt
>> >
>>
>> would like to help, but wrt. resuming i am totally out of the loop..
>> sorry. ede
>>
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