Re: rsync or wget?
On Sat, 12 Jul 2003 00:48, David Fokkema wrote:
> Hi group,
>
> I've just installed apt-proxy. Should I use rsync or wget for fetching
> packages? I don't really understand the differences. I do understand
> that rsync can sync to filesystems by only downloading the differences,
> but apt-proxy knows what it needs to download, right? Only one package,
> or a list or something like that, not a whole filesystem. And once a
> transfer is started, what is the difference in speed between rsync and
> wget? Does rsync do something very smart?
>
> So, basically: should I use rsync or ftp or http servers in my
> apt-proxy.conf?
I know nothing about apt-proxy but I do know that wget saturates my rubber
band powered dial-up connection and makes browsing very unpleasant while it's
going on. rsync does not saturate the link but it gets ~70meg / 8hours
whereas ftp/http gets ~100meg in the same time.
OTOH rsync is very clever indeed when you need to correct a very large file
such as an iso. All that gets downloaded initially are md4sums of small
segments of the source file to compare with the md4sums of the corresponding
segments on your copy. Then correcting segments are d/l and patched as needed.
I have corrected 2, 700meg isos using rsync, the first took about 5 min and
the second about 25 min. Not bad on a dialup connection.
So my guess is perhaps use wget to establish your mirror and change to rsync
to maintain it.
HTH
Bob
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