oops I think this is a *bug*. If the client send http/1.1 and is encoding acceptable, squid works normally. If the client is not encoding acceptable, squid can't cache the object for this IP the first time, even though there have been many other clients requested the same object. That's to say, for example, my browser send a http/1.0 request to an object to squid (that object has been requested by many other clients before me), the first time squid get cache MISS, but from the second time the object get cached. Is it a bug in squid-2.7? Thanks! On Mon, Feb 25, 2008 at 4:07 PM, J. Peng <peng.kyo@xxxxxxxxx> wrote: > Please see the access.log below: > > # tail -f access.log |grep all.js|grep MISS > > 1203926657.352 189 222.136.187.144 TCP_MISS/200 27617 GET > http://r14-js.mail.xxxx.com/zh_CN/htmledition20080131/js/all.js - > FIRST_UP_PARENT/RES application/x-javascript > 1203926657.750 114 221.11.92.130 TCP_MISS/200 27617 GET > http://r14-js.mail.xxxx.com/zh_CN/htmledition20080131/js/all.js - > FIRST_UP_PARENT/RES application/x-javascript > 1203926658.696 988 221.3.235.6 TCP_MISS/200 27617 GET > http://r14-js.mail.xxxx.com/zh_CN/htmledition20080131/js/all.js - > FIRST_UP_PARENT/RES application/x-javascript > 1203926660.663 352 211.97.118.168 TCP_MISS/200 12718 GET > http://res-js.mail.xxxx.com/zh_CN/htmledition20080131/js/all.js - > FIRST_UP_PARENT/RES application/x-javascript > 1203926661.194 21606 221.11.16.110 TCP_MISS/200 68533 GET > http://r14-js.mail.xxxx.com/zh_CN/htmledition20080131/js/all.js - > FIRST_UP_PARENT/RES application/x-javascript > 1203926662.414 1121 121.68.66.119 TCP_MISS/200 27617 GET > http://res-js.mail.xxxx.com/zh_CN/htmledition20080131/js/all.js - > FIRST_UP_PARENT/RES application/x-javascript > 1203926663.557 1673 121.41.135.133 TCP_MISS/200 27617 GET > http://res-js.mail.xxxx.com/zh_CN/htmledition20080131/js/all.js - > FIRST_UP_PARENT/RES application/x-javascript > > > Why there are so many MISS with FIRST_UP_PARENT reason? > I'm running Squid-2.7 the current version for reverse-proxy. > Thanks! >