[squid-users] Transparent Squid Stalls For Up To Two Minutes

I'm having an intermittent squid issue. It's plagued me with CentOS 5.x, Fedora 6, and now Fedora 11 (all using the RPM build that came with the OS).

My DD-WRT router forwards all of my outgoing port 80 requests to my transparent proxy using IP tables. For some reason, squid will hang when opening a URL for up to two minutes. It doesn't always happen and sometimes restarting squid will correct the problem (for a while). The system is pretty hefty 3ghz P4 with 2G of RAM with a SATA II drive. That should be plenty for a small home network of about 10 clients.

When I test DNS lookups from the host, requests are returned within less than a second. I'm pretty sure that's not the problem.

Here is my squid.conf, any input would be greatly appreciated!

acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
http_access allow manager localhost
http_access deny manager
http_access allow localnet
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localnet
http_access allow localhost
http_access deny all
htcp_access allow localnet
htcp_access deny all
http_port 3128 transparent
hierarchy_stoplist cgi-bin ?
cache_mem 32 MB
maximum_object_size_in_memory 128 KB
cache_replacement_policy heap LRU
cache_dir aufs /var/spool/squid 4096 8 16
max_open_disk_fds 0
minimum_object_size 0 KB
maximum_object_size 512 KB
access_log /var/log/squid/access.log squid
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern (cgi-bin|\?) 0 0% 0
refresh_pattern . 0 20% 4320
visible_hostname doug-linux.dougware.net
unique_hostname doug-linux.dougware.net
coredump_dir /var/spool/squid
cache_mgr admin_at_dougware.net
dns_nameservers 10.0.0.254 10.0.0.253 69.197.163.239
store_avg_object_size 64 KB
memory_replacement_policy heap LRU
tcp_outgoing_address 10.0.0.254
udp_outgoing_address 10.0.0.254

Thanks
Doug Eubanks
admin_at_dougware.net
919-201-8750
Received on Mon May 18 2009 - 14:38:47 MDT