On Thu, Jan 15, 2009 at 10:40:31PM -0800, Michael Fortson wrote: > Our server (a recent 8-core xeon server) is able to handle a few > rounds of benchmarks, but then connections just seem to start hanging > somewhere -- they don't show up in haproxy_stats. At the same time, > every server listed on the stats page starts going red (even though > they are clearly fine -- you can hit them directly without problem). > It does not seem to be memory-related (no bulging swap file at any > rate).
I'm almost 100% sure that you have ip_conntrack loaded on this machine, as this is exactly the behaviour you will observe when it is loaded but not properly tuned. Please run lsmod and check for ip_conntrack (or nf_conntrack). Then re-rerun your test after having performed /etc/init.d/iptables stop. I bet it will get better then ;-) Regards, Willy
