Mailinglist Archive: zypp-devel (78 mails)

[Duncan Mac-Vicar Prett <dmacvicar@xxxxxxx>]

On Monday 05 November 2007 08:59:41 Michael Matz wrote:
> Hey, great minds think alike as they say :)  Yes, we are actively trying
> to do just that with the SOLV files which Stano already mentioned in the
> plan.  The general plan is to rely on an xdelta/rsync like algorithm,
> where we have two possibilities:
>
> 1) the requester generates a list of blocks it has, sends them to the
>    server, that one figures out which blocks are missing, and sends a diff
>    description to the client, which reconstructs the file.
>
> 2) The server generates once (when the file changed) a list of block it
>    has, client downloads that one, and actively asks for the blocks it
>    still needs.
>
> 3) server pre-generates a set of xdelta diffs from every file revision to
>    the current one, clients asks for the xdelta matching his own revision,
>    and updates according to that.

ZSync does that already. But as I had said lot of times, it wont work with 
current metadata because it changes too much and too often.

Duncan
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