Dear TS,

I  want  TS to cache dynamic content as Youtube.
So, I confiugred recode.config file as follow.
"CONFIG proxy.config.http.cache.cache_urls_that_look_dynamic INT 1 "
then TS cache and serve youtube video to user1, but TS don't serve user2.

I found one mail from mail archive that is " how to cache object with
different urls (with question mark) just once?"
so, I install cacheurl plugin.
but cacheurl plugin seems not working because I see origin youtube url in
squid.log

I need your advise.

I instruments ATS 3.0.1 (forward proxy mode) in Ubuntu 11

I installed cacheurl plugin.
*[root@localhost cacheurl]# pwd
/usr/local/bin/cacheurl
[root@localhost cacheurl]# ls
cacheurl.c  cacheurl.config.example  cacheurl.lo  cacheurl.so  CHAGES
CHANGES  LICENSE  Makefile  NOTICE  README
[root@localhost cacheurl]#*

I add regex for youtube to cacheurl.config
*[root@localhost local]# vi libexec/trafficserver/cacheurl.config*
*# Configuration file format:
# Configuration file format:
#
# url_pattern   cache_key_replacement
#
# The url_pattern is a regular expression (pcre). The replacement can
contain
# $1, $2 and so on, which will be replaced with the appropriate matching
group
# from the pattern.

# Make files from s1.example.com, s2.example.com and s3.example.com all
# be cached with the same key.
# Adding a unique suffix (TSINTERNAL in this example) to the cache key
# guarantees that it won't clash with a real URL should s.example.com exist.
#http://s[123].example.com/(.*)
http://s.example.com.TSINTERNAL/$1<http://s.example.com.tsinternal/$1>

# Cache based on only some parts of a query string (e.g. ignore session
# information). This plucks out the id and format query string variables and
# only considers those when making the cache key.
#http://www.example.com/video\?.*?\&;?(id=[0-9a-f]*).*?\&(format=[a-z]*)
http://video-srv.example.com.ATSINTERNAL/$1&$2<http://video-srv.example.com.atsinternal/$1&$2>

# Completely ignore a query string for a specific page
#http://www.example.com/some/page.html(?:\?|$)
http://www.example.com/some/page.html

#http:\/\/(.*\.youtube\.com|.*\.googlevideo\.com|.*\.video\.google\.com)\/(get_video|videoplayback|videodownload)\?.*?\&(itag=[0-9]*).*?\&(id=[a-zA-Z0-9]*)
http://video-srv
.youtube.com.ATSINTERNAL/$3&$4

http://o-o.preferred.hkg05s01.(v[0-9]*).lscache[0-9]).
c.youtube.com/videoplayback\?.* <http://c.youtube.com/videoplayback%5C?.*>
?\&(itag=[0-9]*).*?\&(id=[a-zA-Z0-9]*)
http://video-srv.youtube.com.ATSINTERNAL/$3&$4<http://video-srv.youtube.com.atsinternal/$3&$4>
*


and add cacheurl.so to plugin.config
I added 3 line but what of all is correct?

*[root@localhost local]# vi etc/trafficserver/plugin.config*
*# Comments start with a '#' and continue to the end of the line
# Blank lines are ignored
#
# On UNIX
# test-plugin.so arg1 arg2 arg3
#
# On WIN NT/2000
# test-plugin.dll arg1 arg2 arg3
#inktomi/iwx/iwx.so
#inktomi/abuse/abuse.so etc/trafficserver/abuse.config
#inktomi/icx/icx.so etc/trafficserver/icx.config
cacheurl.so
cacheurl.so /usr/local/libexec/trafficserver/cacheurl.config
/usr/local/libexec/trafficserver/cacheurl.so
/usr/local/libexec/trafficserver/cacheurl.config*



last,
In squid.log, I found youtube url not changed.
*[root@localhost local]# vi var/log/trafficserver/squid.log
1320207814.109 915 168.219.208.213 TCP_HIT/200 1726867 GET
http://o-o.preferred.hkg05s01.v12.lscache8.c.youtube.com/videoplayback?sparams=id%252Cexpire%252Cip%252Cipbits%25
2Citag%252Csource%252Calgorithm%252Cburst%252Cfactor%252Ccp&fexp=904442%252C912600&algorithm=throttle-factor&itag=34&ip=165.0.0.0&burst=40&sver=3&signature=B48AE121D4E46657
6C8DD7A0E74383096C79D3E1.7390E7F468A8628467DD5906E5A01C2592DC1C6C&source=youtube&expire=1320231600&key=yt1&ipbits=8&factor=1.25&cp=U0hRRVJOT19FSkNOMV9KSFNHOldhUDcxWlQ4Smhr&
id=e5b6b4b59fcfe5c8 - NONE/- video/x-flv -*
*
*


Thanks in advance,

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