young Fedora torrents spread data too slowly

[Chuck Anderson]

On Sat, Oct 11, 2008 at 10:03:31PM +0200, Till Maas wrote:
> On Sat October 11 2008, Mike McGrath wrote:
> 
> > I wouldn't say overloaded.  Throttled is the right word, and we do have it
> > throttled.  Although even throttled on one machine I was able to download
> > the latest live beta in roughly 10 minutes on my slicehost.com host, and
> > closer to 9 hours on my workstation at home.  Its always difficult to tell
> > where the slowness happens but I suspect in my slow case it was because my
> > ISP was limiting my traffic and slicehost.com was not.
> 
> For me surely torrent1.fedoraproject.org is the bottleneck, because it only 
> seeds at around 0.2 KB/s and is the only seed at all. Something is strange, 
> because given the time the torrent is already online, there should be several 
> other seeds, but nearly all peers have the same percentage of the files, so 
> they redistribute whatever they got, but nobody gets the missing chunks 
> reasonable fast to redistribute them.

Yes, it seems like the seeder isn't handing out "random enough" chunks 
of the file to various clients--like all the clients have to go back 
to the single seeder for the missing chunks instead of getting them 
from other clients.  I would think there should be at least one 
distributed copy by now, but my client says there are 0 (not even 
fractional distributed copies...).

I'm using "bittorrent-curses".  I increased my max_upload_rate to 600 
KB/sec (is that bits or bytes by the way?) and enabled UDP 6881-6889 
through the host's firewall (in addition to TCP 6881-6889) since I 
hadn't realized that UDP is used now.