[squid-users] Problems with downloads

Hi everyone,

I have Squid3.0STABLE9 installed on a CentOS5.2_x86_64 system. I have
problems with downloads, especially large files. Usually downloads are slow
in my network because of the amount of users I have but I dealt with it
using download accelerators like “FlashGET”. Now the downloads get
interrupted and they never resume and I don’t know why. I can’t seem to find
a pattern as to when or why the downloads get interrupted. I don’t know if I
explained my self well enough. I’m suspecting that there is something wrong
with all the configurations I did to tune de cache effectiveness. This is
the configuration I have. I left out all of my ACLs since I presume they are
not very helpful in this case. I would really appreciate any help I can get.
Thanks.

#  TAG: http_port
http_port 192.168.0.4:3128
http_port 192.168.54.4:3128

#  TAG: icp_port
icp_port 0

# OPTIONS WHICH AFFECT THE NEIGHBOR SELECTION ALGORITHM
#
----------------------------------------------------------------------------
-

#  TAG: cache_peer
cache_peer 192.168.250.2 parent 1080 0 no-query default

#  TAG: hierarchy_stoplist
hierarchy_stoplist cgi-bin ?

#  TAG: nonhierarchical_direct
nonhierarchical_direct off

#  TAG: cache
acl QUERY urlpath_regex cgi-bin \?
cache deny QUERY

# OPTIONS WHICH AFFECT THE CACHE SIZE
#
----------------------------------------------------------------------------
-

#  TAG: cache_mem (bytes)
cache_mem 36 MB

#  TAG: cache_swap_low  (percent, 0-100)
#  TAG: cache_swap_high (percent, 0-100)
cache_swap_low 90
cache_swap_high 95

#  TAG: maximum_object_size  (bytes)
maximum_object_size 35840 KB

#  TAG: maximum_object_size_in_memory    (bytes)
maximum_object_size_in_memory 16 KB

#  TAG: offline_mode
offline_mode off

#  TAG: cache_replacement_policy
cache_replacement_policy heap LFUDA

#  TAG: memory_replacement_policy
memory_replacement_policy heap GDSF

#  TAG: range_offset_limit      (bytes)
range_offset_limit -1

# LOGFILE PATHNAMES AND CACHE DIRECTORIES
#
----------------------------------------------------------------------------
-

#  TAG: cache_dir
cache_dir ufs /var/spool/squid 20480 16 256

#  TAG: access_log
access_log /var/log/squid/access.log

#  TAG: cache_log
cache_log /var/log/squid/cache.log

#  TAG: useragent_log
#useragent_log /var/log/squid/useragent.log

#  TAG: cache_store_log
cache_store_log /var/log/squid/store.log

#  TAG: pid_filename
pid_filename /var/run/squid.pid

# OPTIONS FOR EXTERNAL SUPPORT PROGRAMS
#
----------------------------------------------------------------------------
-

#  TAG: ftp_user
ftp_user Squid_at_proxy.cha.jovenclub.cu

#  TAG: ftp_list_width
ftp_list_width 32

#  TAG: ftp_passive
ftp_passive on

#  TAG: ftp_sanitycheck
ftp_sanitycheck on

#  TAG: dns_nameservers
dns_nameservers 192.168.54.3 192.168.54.4 192.168.250.1 192.168.250.3

#  TAG: hosts_file
hosts_file /etc/hosts

#  TAG: auth_param

auth_param basic program /usr/lib64/squid/ncsa_auth /etc/squid/claves
auth_param basic realm proxy.cha.jovenclub.cu
auth_param basic children 5
auth_param basic realm proxy.cha.jovenclub.cu
auth_param basic credentialsttl 2 hours
auth_param basic casesensitive off

# OPTIONS FOR TUNING THE CACHE
#
----------------------------------------------------------------------------
-

#  TAG: request_body_max_size (KB)
request_body_max_size 4 MB

#  TAG: refresh_pattern
refresh_pattern ^ftp:        1440  20%   10080
refresh_pattern ^gopher:     1440  0%    1440
refresh_pattern -i .nup         960     200%    1440
refresh_pattern -i .ver         960     200%    1440
refresh_pattern -i .zip      960   200%  1440
refresh_pattern -i .exe         960     200%    1440
refresh_pattern -i .l2b         960     200%    1440
refresh_pattern -i .p7h         960     200%    1440
refresh_pattern -i .avc         960     200%    1440
refresh_pattern -i .avc         960     200%    1440
refresh_pattern -i .rar      960   200%  1440
refresh_pattern -i .vpu         960     200%    1440
refresh_pattern -i .dat         960     200%    1440
refresh_pattern -i .dif         960     200%    1440
refresh_pattern -i .klz         960     200%    1440
refresh_pattern -i .kdc      960   200%  1440
refresh_pattern -i .ctf         960     200%    1440
refresh_pattern -i .bin         960     200%    1440
refresh_pattern -i .jpg         1440    250%    4320 override-expire
override-lastmod
refresh_pattern -i .gif         1440    250%    4320 override-expire
override-lastmod
refresh_pattern -i .png         1440    250%    4320 override-expire
override-lastmod
refresh_pattern -i .js       1440  250%  4320 override-expire
override-lastmod
refresh_pattern -i .ico      1440  250%  4320 override-expire
override-lastmod
refresh_pattern -i .css      1440  250%  4320 override-expire
override-lastmod
refresh_pattern -i .         300   250%  2880 override-expire
override-lastmod

#  TAG: quick_abort (KB)
quick_abort_min 64 KB
quick_abort_max 128 KB
quick_abort_pct 90

#  TAG: reload_into_ims on|off
reload_into_ims on

#  TAG: collapsed_forwarding    (on|off)
collapsed_forwarding on

#  TAG: half_closed_clients
half_closed_clients off

# ACCESS CONTROLS
#
----------------------------------------------------------------------------
-

#  TAG: http_reply_access
http_reply_access allow all

icp_access allow all

# ADMINISTRATIVE PARAMETERS
#
----------------------------------------------------------------------------
-

#  TAG: cache_mgr
cache_mgr admin

#  TAG: cachemgr_passwd
cachemgr_passwd squidcha13 all

#  TAG: cache_effective_user
cache_effective_user squid

#  TAG: cache_effective_group
cache_effective_group squid

#  TAG: visible_hostname
visible_hostname proxy.cha.jovenclub.cu

#  TAG: coredump_dir

coredump_dir /var/spool/squid

#  TAG: error_directory
error_directory /usr/share/squid/errors/Spanish

#  TAG: snmp_port
snmp_port 3401

#  TAG: snmp_access
snmp_access allow community localhost
snmp_access deny all

# MISCELLANEOUS
#
----------------------------------------------------------------------------
-

#  TAG: retry_on_error
retry_on_error on
Received on Thu Oct 23 2008 - 18:39:14 MDT