Hello all, I'm running several Squid boxes as reverse proxies, the problem i'm seeing is when there are a high number of connections in the region of 80,000 per Squid at peak I'm getting 1,000's of TCP_MISS for the same URL hitting the back end servers, things do eventually sort themselves out. Is there any way to prevent such behaviour? I assumed with 'collapsed_forwarding on' it would only send a single request to the backend for new content? Other than the odd instance where this problem occurs the servers run between 90 - 99% hit ratio and have been load tested with max bandwidth 922Mbps @ 68,000 connections, system resources are readily available with Squid only ever using 30% CPU at peaks and over 4.5GB RAM free. The systems also have 100,000 file descriptors available. Any help / tips will be much appreciated. Thanks, Tookers Squid Conf:- http_port x.x.x.x:80 act-as-origin vhost defaultsite=x.x.com:80 httpd_suppress_version_string on icp_port 0 dns_nameservers 127.0.0.1 dns_testnames x.x.com visible_hostname squid1 cache_replacement_policy lru memory_replacement_policy lru cache_dir aufs /var/squid/var/cache 4096 16 256 cache_mem 512 MB accept_filter httpready memory_pools on memory_pools_limit 0 maximum_object_size_in_memory 2048 KB collapsed_forwarding on negative_ttl 5 minutes server_persistent_connections on client_persistent_connections on half_closed_clients off -- View this message in context: http://www.nabble.com/Reverse-Proxy%2C-sporadic-TCP_MISS-tp25659879p25659879.html Sent from the Squid - Users mailing list archive at Nabble.com.
