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Re: apt PARALLELISM



On Mon, 05 Dec 2005, Joe Smith wrote:
> "Olaf van der Spek" <olafvdspek@gmail.com> wrote in message 
> b2cc26e40512051234s266d9c66l9dfa02f7001ac7cb@mail.gmail.com">news:b2cc26e40512051234s266d9c66l9dfa02f7001ac7cb@mail.gmail.com...
> >On 12/5/05, Ivan Adams <ivancho.b@gmail.com> wrote:
> >>Example: (/etc/apt/sources.list)
> >>deb http://ftp.en.debian.org/debian main stable contrib non-free
> >>deb http://ftp.de.debian.org/debian main stable contrib non-free
> >>
> >>in this case the stable packages will be ONLY downloaded from first 
> >>server
> >>from the list ...
> >
> >And what is the problem?

It is like that by design AFAIK.

> This person is requesting parallel downloads from multiple servers. So 

The mirror network is there to serve as many users as we possibly can at the
same time, at reasonable speeds.  Parallel connections to the same mirror or
to a number of different ones might jeopardize that goal.

> basicly during package download, if there are three full and up-to-date 
> mirrors in sources.list, there should be simulatious downloads of different 
> packages from all three different mirrors.
>
> The concept is that in some cases this can noticable improve performance, 
> especially whith sites that bandwidth throtle, or have some other sort of 
> bottleneck.

The problem with that concept is that it has the very likely effect of
degrading performance for everyone else.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh



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