Re: [squid-users] Caching in 3.2 vs 3.1

Hi Amos,

Since last 2-3 months i am testing squid 3.2 with different version till
current latest version, And i observed that 3.1 is working fantastic
while we are looking for cache gain / cache hit.

Again, i say squid 3.1 is awesome for people who wants cache hit /
bandwidth saving.:-)

Regards,
Ben
>
> cc'ing to squid-dev where the people who might know reside....
>
>
> Also, adding "debug_options 11,2" may show something useful in the
> HTTP flow for 3.2.
>
> Amos
>
> On 15.03.2012 05:59, Erik Svensson wrote:
>> Hi,
>>
>> Objects don't get cached in Squid 3.2. Same transactions and config
>> works in 3.1
>>
>> I will show my problem with a simple webserver listening on
>> 127.0.0.1:9990
>> and sending transactions from curl to a squid listening on
>> 127.0.0.1:9993
>>
>> 3.1 logs first a MISS since the cache is empty and when repeating the
>> transaction a HIT.
>> 3.2 logs 2 MISSes
>>
>> # /opt/squid-3.1.19/sbin/squid -v
>> Squid Cache: Version 3.1.19
>> configure options: '--prefix=/opt/squid-3.1.19' '--disable-wccp'
>> '--disable-wccpv2' '--disable-ident-lookups' '--disable-ipv6'
>> '--with-large-files' --with-squid=/usr/local/src/squid-3.1.19
>> --enable-ltdl-convenience
>>
>> # /opt/squid-3.2.0.16/sbin/squid -v
>> Squid Cache: Version 3.2.0.16
>> configure options: '--prefix=/opt/squid-3.2.0.16' '--disable-wccp'
>> '--disable-wccpv2' '--disable-ident-lookups' '--disable-ipv6'
>> '--with-large-files' --enable-ltdl-convenience
>>
>> # cat 3.conf
>> http_port 127.0.0.1:9993
>> icp_port 0
>> cache_mem 128 mb
>> #cache_dir null /tmp
>> access_log /tmp/3/access.log
>> cache_log /tmp/3/cache.log
>> pid_filename /tmp/3/squid.pid
>> coredump_dir /tmp/3
>> refresh_pattern . 0 20% 4320
>> http_access allow all
>> http_reply_access allow all
>> shutdown_lifetime 2 seconds
>>
>> # thttpd -p 9990 -d /tmp # start thttpd webserver serving files in
>> directory /tmp
>>
>> # echo HiHo >/tmp/x # Create a file to serve
>>
>>
>> # /opt/squid-3.1.19/sbin/squid -f 3.conf
>>
>> # curl -v -H "Pragma:" -x 127.0.0.1:9993 http://127.0.0.1:9990/x
>> * About to connect() to 127.0.0.1 port 9993
>> * Trying 127.0.0.1... * connected
>> * Connected to 127.0.0.1 (127.0.0.1) port 9993
>>> GET http://127.0.0.1:9990/x HTTP/1.1
>> User-Agent: curl/7.12.1 (i386-redhat-linux-gnu) libcurl/7.12.1
>> OpenSSL/0.9.7a zlib/1.2.1.2 libidn/0.5.6
>> Host: 127.0.0.1:9990
>> Accept: */*
>>
>> < HTTP/1.0 200 OK
>> < Server: thttpd/2.25b 29dec2003
>> < Content-Type: text/plain; charset=iso-8859-1
>> < Date: Wed, 14 Mar 2012 15:49:39 GMT
>> < Last-Modified: Wed, 14 Mar 2012 15:47:14 GMT
>> < Accept-Ranges: bytes
>> < Content-Length: 5
>> < X-Cache: MISS from localhost.localdomain
>> < Via: 1.0 localhost.localdomain (squid/3.1.19)
>> * HTTP/1.0 connection set to keep alive!
>> < Connection: keep-alive
>> HiHo
>> * Connection #0 to host 127.0.0.1 left intact
>> * Closing connection #0
>>
>> # curl -v -H "Pragma:" -x 127.0.0.1:9993 http://127.0.0.1:9990/x
>> * About to connect() to 127.0.0.1 port 9993
>> * Trying 127.0.0.1... * connected
>> * Connected to 127.0.0.1 (127.0.0.1) port 9993
>>> GET http://127.0.0.1:9990/x HTTP/1.1
>> User-Agent: curl/7.12.1 (i386-redhat-linux-gnu) libcurl/7.12.1
>> OpenSSL/0.9.7a zlib/1.2.1.2 libidn/0.5.6
>> Host: 127.0.0.1:9990
>> Accept: */*
>>
>> < HTTP/1.0 200 OK
>> < Server: thttpd/2.25b 29dec2003
>> < Content-Type: text/plain; charset=iso-8859-1
>> < Date: Wed, 14 Mar 2012 15:49:39 GMT
>> < Last-Modified: Wed, 14 Mar 2012 15:47:14 GMT
>> < Accept-Ranges: bytes
>> < Content-Length: 5
>> < Age: 8
>> < X-Cache: HIT from localhost.localdomain
>> < Via: 1.0 localhost.localdomain (squid/3.1.19)
>> * HTTP/1.0 connection set to keep alive!
>> < Connection: keep-alive
>> HiHo
>> * Connection #0 to host 127.0.0.1 left intact
>> * Closing connection #0
>>
>> # /opt/squid-3.1.19/sbin/squid -f 3.conf -k shutdown
>>
>> # cat access.log
>> 1331740179.023 2 127.0.0.1 TCP_MISS/200 339 GET
>> http://127.0.0.1:9990/x - DIRECT/127.0.0.1 text/plain
>> 1331740187.003 0 127.0.0.1 TCP_MEM_HIT/200 346 GET
>> http://127.0.0.1:9990/x - NONE/- text/plain
>>
>> # rm access.log
>>
>>
>> # /opt/squid-3.2.0.16/sbin/squid -f 3.conf
>>
>> # curl -v -H "Pragma:" -x 127.0.0.1:9993 http://127.0.0.1:9990/x
>> * About to connect() to 127.0.0.1 port 9993
>> * Trying 127.0.0.1... * connected
>> * Connected to 127.0.0.1 (127.0.0.1) port 9993
>>> GET http://127.0.0.1:9990/x HTTP/1.1
>> User-Agent: curl/7.12.1 (i386-redhat-linux-gnu) libcurl/7.12.1
>> OpenSSL/0.9.7a zlib/1.2.1.2 libidn/0.5.6
>> Host: 127.0.0.1:9990
>> Accept: */*
>>
>> < HTTP/1.1 200 OK
>> < Server: thttpd/2.25b 29dec2003
>> < Content-Type: text/plain; charset=iso-8859-1
>> < Date: Wed, 14 Mar 2012 15:55:29 GMT
>> < Last-Modified: Wed, 14 Mar 2012 15:47:14 GMT
>> < Accept-Ranges: bytes
>> < Content-Length: 5
>> < X-Cache: MISS from localhost.localdomain
>> < Via: 1.1 localhost.localdomain (squid/3.2.0.16)
>> < Connection: keep-alive
>> HiHo
>> * Connection #0 to host 127.0.0.1 left intact
>> * Closing connection #0
>>
>> # curl -v -H "Pragma:" -x 127.0.0.1:9993 http://127.0.0.1:9990/x
>> * About to connect() to 127.0.0.1 port 9993
>> * Trying 127.0.0.1... * connected
>> * Connected to 127.0.0.1 (127.0.0.1) port 9993
>>> GET http://127.0.0.1:9990/x HTTP/1.1
>> User-Agent: curl/7.12.1 (i386-redhat-linux-gnu) libcurl/7.12.1
>> OpenSSL/0.9.7a zlib/1.2.1.2 libidn/0.5.6
>> Host: 127.0.0.1:9990
>> Accept: */*
>>
>> < HTTP/1.1 200 OK
>> < Server: thttpd/2.25b 29dec2003
>> < Content-Type: text/plain; charset=iso-8859-1
>> < Date: Wed, 14 Mar 2012 15:55:34 GMT
>> < Last-Modified: Wed, 14 Mar 2012 15:47:14 GMT
>> < Accept-Ranges: bytes
>> < Content-Length: 5
>> < X-Cache: MISS from localhost.localdomain
>> < Via: 1.1 localhost.localdomain (squid/3.2.0.16)
>> < Connection: keep-alive
>> HiHo
>> * Connection #0 to host 127.0.0.1 left intact
>> * Closing connection #0
>>
>> # /opt/squid-3.2.0.16/sbin/squid -f 3.conf -k shutdown
>>
>> # cat access.log
>> 1331740529.630 1 127.0.0.1 TCP_MISS/200 341 GET
>> http://127.0.0.1:9990/x - HIER_DIRECT/127.0.0.1 text/plain
>> 1331740534.093 1 127.0.0.1 TCP_MISS/200 341 GET
>> http://127.0.0.1:9990/x - HIER_DIRECT/127.0.0.1 text/plain
>>
>>
>> To repeat : Squid 3.1 logs expected MISS + HIT while 3.2 logs MISS +
>> MISS.
>> Does anyone have any idea what I am missing here ?
>>
>> Regards,
>> Erik Svensson
>
Received on Thu Mar 15 2012 - 04:25:55 MDT