Kurt Buff wrote:
All,
I'm running squid 2.6.17 on a FreeBSD 6.2-STABLE. This should be
mostly irrelevant, as I am trying to ameliorate a hardware issue while
I get a new machine up and running. The issue is that we have
extremely slow initial load of pages, which I suspect is because of
slow and perhaps faulty disk access - haven't localized it to disk or
controller yet. We have moved from a T1 to a DS3, and ever since
people have been complaining of slow web access, which seems a bit
counterintuitive.
The hardware is:
2.4GHz Celeron CPU
2G RAM
Single HD: ad6: 76319MB <WDC WD800JD-00MSA1 10.01E01> at
ata3-master SATA150
I'm getting a fair number of this message:
ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=112214751
and am noticing that squid is dumping core every once in a while,
though it does restart:
pid 3509 (squid), uid 100: exited on signal 6 (core dumped)
I've tried to solve this temporarily by preventing squid from caching
at all - by adding "no_cache deny all" and "pipeline_prefetch on" to
the config.
What I want to make sure of is that other settings don't negate this
effort. What should I strip (or add) to my configuration below?
Current configuration file:
http_port 3128
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 512 MB
cache_dir ufs /usr/local/squid/cache 2000 16 256
Change this to...
cache_dir null /dev/null
...if you can. The null storedir type might not have been built in.
logformat combined %>a %<A %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %<st
"%{Referer}>h" "%{User-Agent}>h" %Ss:%Sh
access_log /usr/local/squid/logs/access.log combined
access_log syslog combined
The log files are still hitting the disk. If you really want to limit
your disk activity, use only syslog, and pipe the logs to another server
(or turn logging off entirely).
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
no_cache deny all
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 CONNECT method CONNECT
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
acl our_networks src 10.0.0.0/8 192.168.8.0/24 192.168.10.0/24
192.168.11.0/24 192.168.12.0/24 192.168.13.0/24 192.168.15.0
/24 192.168.24.0/24
http_access allow our_networks
http_access deny all
http_reply_access allow all
icp_access allow all
visible_hostname zsquid.mycompany.com
coredump_dir /usr/local/squid/cache
pipeline_prefetch on
Kurt
Chris
