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[Mldonkey-users] 2.02-8 flooded by lowid clients


From: nospam
Subject: [Mldonkey-users] 2.02-8 flooded by lowid clients
Date: Wed, 29 Jan 2003 08:36:09 +0100
User-agent: Mutt/1.2.5i

Hi,

trying latest CVS version for some time I noticed quite strange effects - 
not noticable on a 100mbit line ;-) but on another with 128kbit upstream.

mldonkey is flooded by incoming clients, logging shows there are huge
amounts of lowid clients connecting - max_opened_connections at 50 and
clients_per_second to 1 (for testing) but over 1000 connections established. 

Isn't there some flow control for requests to lowid clients?
They're connecting like hell, and mldonkey happily responds and asks
for files, filling (more than) available bandwidth. This lasted a
whole night. Files are a mixture between popular and rare files (four 
popular, 40 very rare).

After disabling incoming TCP port via filtering (so it's at lowid) everything
is back to normal within seconds. And yes, traffic shaping is used, but
this won't help if there's far too much data going out all the time.

Any ideas? Is it possible to drop lowid sources (and not request chunks
from them) completely when there are enough highid ones? Or request
it one by one, limited to max_opened_connections and refuse further
incoming connects.

nb: overnet is disabled, enabling it makes the situation even worse

yours,
n*




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