On Wed, Feb 21, 2007 at 07:18:38PM -0600, Scott Granneman wrote: > david dooling is quite smart & i generally trust what he says,
Many thanks. > but let > me just point out that by default ubuntu uses the multiple-line method, > so it can't be bothering their servers too much. :) Please do not lose trust. Note that I conditioned my statements with ``if''. Robert did the real work and looked at the man page, showing that the latter ``if'' I had suggested was the correct one. <wink> Perhaps I just trust Robert to research and confirm anything I say. I promise to do better in the future. </wink> > Robert Citek wrote: > > David Dooling wrote: > >> On Wed, Feb 21, 2007 at 03:32:29PM -0600, Robert Citek wrote: > >>> Is there any advantage/disadvantage to having repository components > >>> in one line or several lines in a sources.list file? > >> When downloading files, apt parallelizes by opening one conncetion > >> per server. If it considers each line in sources.list a different > >> server, apt would connect four times to archive.ubuntu.com. This may > >> be considerd abuse by the folks at Ubuntu (although they probably > >> would not even notice). If apt does some sort of string comparison > >> to determine unique hosts, then there should no difference. > > > > According to the man page, apt is doing some collapsing: > > > > <quote> > > APT will sort the URI list after it has generated a complete set > > internally, and will collapse multiple references to the same Internet > > host, for instance, into a single connection, so that it does not > > inefficiently establish an FTP connection, close it, do something else, > > and then re-establish a connection to that same host. > > </quote> > > > > But then man pages are like comments in code: occasionally out of sync > > with reality. Which is why I was wondering if anyone knew of any > > gotchas to using multiple lines. -- David Dooling _______________________________________________ CWE-LUG mailing list [email protected] http://www.cwelug.org/ http://www.cwelug.org/archives/ http://www.cwelug.org/mailinglist/
