fre 2007-02-02 klockan 14:11 +0100 skrev Stefan Bohm: > Hi all, > > yesterday we had some strange problems running our reverse-proxy squid > cluster. > During some high-traffic sports event, squid starts to emit messages > like: > > commBind: Cannot bind socket FD 98 to *:0: (98) Address already in use
You have run out of free ports, all available ports occupied by TIME_WAIT sockets. Things to look into 1. Make sure you internally use persistent connections between Squid and the web servers. This cuts down on the number of initiated connections/s considerably. 2. Configure the unassigned port range as big as possible in your OS. On Linux this is set in /proc/sys/net/ipv4/ip_local_port_range. The biggest possible range is 1024-65535 and can sustain up to at least 500 connections/s continuous load squid->webservers. Regards Henrik
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