[squid-users] Surfing hangs after period of time

Hi2all!

My users are experiencing problems with squid few hours after it starts.
I have following configuration: P4 3GHz, 1.1 GB RAM, CentOS, Squid 2.6. This
is a virtual machine and also a DNS server.
Number of active users at one time is about 40-50. The problem is, when I
start Squid, it works fine for couple of hours, and then the behaviour from
the client side is that pages stop to download 10-20 secs, like everything
stops, then it starts back and so on. When it stops, I hit refresh button
and then it starts to download again. In that time, my free memory is around
400MB, that's some 45%, it isn't swapping, cpu is low. I believe my
configuration is wrong, and need some help tunning it. Parameters are
majorly by default values. So, I attach my squid.conf:

http_port 10.19.2.3:8080

hierarchy_stoplist cgi-bin ?

acl QUERY urlpath_regex cgi-bin \?
cache deny QUERY

acl apache rep_header Server ^Apache
broken_vary_encoding allow apache

cache_mem 32 MB

cache_swap_low 90
cache_swap_high 95

maximum_object_size 4096 KB

memory_replacement_policy lru

cache_dir ufs /var/spool/squid 1500 16 256

access_log /var/log/squid/access.log squid

cache_log /var/log/squid/cache.log

cache_store_log /var/log/squid/store.log

pid_filename /var/run/squid.pid

check_hostnames on

dns_nameservers 10.19.2.3 195.29.149.196

hosts_file /etc/hosts

refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320

acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
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 all
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports

acl zbw_network src 10.19.0.0/16

http_access allow zbw_network
http_access allow localhost
http_access deny all

http_reply_access allow all

icp_access allow all

cache_mgr administrator@zbw.intranet

mail_from administrator@zbw.intranet

mail_program postfix

visible_hostname nameserver.zbw.intranet

snmp_port 1234

delay_class 1 2

delay_access 1 allow zbw_network
delay_access 1 deny all

delay_parameters 1 -1/-1 128000/1640000

coredump_dir /var/spool/squid

-- 
View this message in context: http://www.nabble.com/Surfing-hangs-after-period-of-time-tp16976682p16976682.html
Sent from the Squid - Users mailing list archive at Nabble.com.