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Squid3 TCP_MISS / 200

我在Debian上安装了squid3-3.4.8。 一些gif在/var/log/squid3/access.log中有HIT，但很多都是MISS。 这里是日志： 

1465154641.561 243 10.10.70.71 TCP_MISS/200 356 GET http://ping.chartbeat.net/ping? - HIER_DIRECT/54.235.160.51 image/gif 1465154686.677 355 10.10.70.71 TCP_MISS/200 356 GET http://ping.chartbeat.net/ping? - HIER_DIRECT/75.101.135.237 image/gif 1465154690.942 196 10.10.70.71 TCP_MISS/200 356 GET http://ping.chartbeat.net/ping? - HIER_DIRECT/75.101.135.237 image/gif 1465154761.749 430 10.10.70.71 TCP_MISS/200 356 GET http://ping.chartbeat.net/ping? - HIER_DIRECT/54.243.156.79 image/gif 1465154826.042 416 10.10.70.71 TCP_MISS/200 356 GET http://ping.chartbeat.net/ping? - HIER_DIRECT/54.83.16.157 image/gif 1465154896.843 362 10.10.70.71 TCP_MISS/200 356 GET http://ping.chartbeat.net/ping? - HIER_DIRECT/23.21.149.132 image/gif 1465155059.310 183 10.10.70.71 TCP_MISS/200 488 GET http://track.adform.net/serving/unload/? - HIER_DIRECT/37.157.6.252 image/gif 1465155081.000 361 10.10.70.71 TCP_MISS/200 356 GET http://ping.chartbeat.net/ping? - HIER_DIRECT/54.225.223.150 image/gif 1465155133.835 128 10.10.70.71 TCP_MISS/200 488 GET http://track.adform.net/serving/unload/? - HIER_DIRECT/37.157.6.252 image/gif 1465155151.674 349 10.10.70.71 TCP_MISS/200 356 GET http://ping.chartbeat.net/ping? - HIER_DIRECT/23.21.95.141 image/gif

这里是/var/log/squid3/cache.log ： 

 HTTP/1.1 200 OK Server: nginx Date: Sun, 05 Jun 2016 19:32:13 GMT Content-Type: image/gif Cache-Control: no-cache, no-store, must-revalidate Pragma: no-cache Expires: -1 Access-Control-Allow-Origin: * P3P: CP="NOI DSP COR NID CURa ADMa DEVa TAIa PSAa PSDa OUR LEG NAV INT" X-Cache: MISS from localhost X-Cache-Lookup: MISS from localhost:3128 Transfer-Encoding: chunked Via: 1.1 localhost (squid/3.4.8) Connection: keep-alive ---------- 2016/06/05 22:32:13.835 kid1| http.cc(1062) persistentConnStatus: local=10.10.84.115:48806 remote=37.157.6.252:80 FD 16 flags=1 eof=0 2016/06/05 22:32:13.835 kid1| http.cc(1062) persistentConnStatus: local=10.10.84.115:48806 remote=37.157.6.252:80 FD 16 flags=1 eof=0 2016/06/05 22:32:31.325 kid1| client_side.cc(2407) parseHttpRequest: HTTP Client local=10.10.84.115:3128 remote=10.10.70.71:57168 FD 13 flags=1 2016/06/05 22:32:31.325 kid1| client_side.cc(2408) parseHttpRequest: HTTP Client REQUEST: --------- GET http://ping.chartbeat.net/ping?h=15min.lt&p=%2F&u=DqS6y2zqfeBcFYFs&d=15min.lt&g=54232&g0=default&n=0&f=00001&c=9&x=0&m=0&y=31461&o=1249&w=916&j=270&R=0&W=0&I=1&E=0&e=0&r=&b=19769&t=BsrbM3BDP0jmCOnR3pCdgvMIDaWsQK&V=78&tz=-180&sn=6&EE=0&_ HTTP/1.1 Host: ping.chartbeat.net User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0 Accept: image/png,image/*;q=0.8,*/*;q=0.5 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://www.15min.lt/ Connection: keep-alive Pragma: no-cache Cache-Control: no-cache ---------- 2016/06/05 22:32:31.481 kid1| http.cc(2260) httpStart: httpStart: "GET http://ping.chartbeat.net/ping?h=15min.lt&p=%2F&u=DqS6y2zqfeBcFYFs&d=15min.lt&g=54232&g0=default&n=0&f=00001&c=9&x=0&m=0&y=31461&o=1249&w=916&j=270&R=0&W=0&I=1&E=0&e=0&r=&b=19769&t=BsrbM3BDP0jmCOnR3pCdgvMIDaWsQK&V=78&tz=-180&sn=6&EE=0&_" 2016/06/05 22:32:31.481 kid1| http.cc(2216) sendRequest: HTTP Server local=10.10.84.115:53318 remote=23.21.95.141:80 FD 15 flags=1 2016/06/05 22:32:31.481 kid1| http.cc(2217) sendRequest: HTTP Server REQUEST: --------- GET /ping?h=15min.lt&p=%2F&u=DqS6y2zqfeBcFYFs&d=15min.lt&g=54232&g0=default&n=0&f=00001&c=9&x=0&m=0&y=31461&o=1249&w=916&j=270&R=0&W=0&I=1&E=0&e=0&r=&b=19769&t=BsrbM3BDP0jmCOnR3pCdgvMIDaWsQK&V=78&tz=-180&sn=6&EE=0&_ HTTP/1.1 Host: ping.chartbeat.net User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0 Accept: image/png,image/*;q=0.8,*/*;q=0.5 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://www.15min.lt/ Pragma: no-cache Via: 1.1 localhost (squid/3.4.8) X-Forwarded-For: 10.10.70.71 Cache-Control: no-cache Connection: keep-alive ---------- 2016/06/05 22:32:31.595 kid1| ctx: enter level 0: 'http://ping.chartbeat.net/ping?h=15min.lt&p=%2F&u=DqS6y2zqfeBcFYFs&d=15min.lt&g=54232&g0=default&n=0&f=00001&c=9&x=0&m=0&y=31461&o=1249&w=916&j=270&R=0&W=0&I=1&E=0&e=0&r=&b=19769&t=BsrbM3BDP0jmCOnR3pCdgvMIDaWsQK&V=78&tz=-180&sn=6&EE=0&_' 2016/06/05 22:32:31.595 kid1| http.cc(705) processReplyHeader: processReplyHeader: key '9A7E3C59EFE4B10B4AE720A6F2E141DA' 2016/06/05 22:32:31.595 kid1| http.cc(746) processReplyHeader: HTTP Server local=10.10.84.115:53318 remote=23.21.95.141:80 FD 15 flags=1 2016/06/05 22:32:31.595 kid1| http.cc(747) processReplyHeader: HTTP Server REPLY: --------- HTTP/1.1 200 OK Cache-Control: no-cache, no-store, must-revalidate Content-Type: image/gif Expires: 0 Pragma: no-cache Content-Length: 43 Connection: keep-alive GIF89a ---------- 2016/06/05 22:32:31.595 kid1| ctx: exit level 0 2016/06/05 22:32:31.595 kid1| ctx: enter level 0: 'http://ping.chartbeat.net/ping?h=15min.lt&p=%2F&u=DqS6y2zqfeBcFYFs&d=15min.lt&g=54232&g0=default&n=0&f=00001&c=9&x=0&m=0&y=31461&o=1249&w=916&j=270&R=0&W=0&I=1&E=0&e=0&r=&b=19769&t=BsrbM3BDP0jmCOnR3pCdgvMIDaWsQK&V=78&tz=-180&sn=6&EE=0&_' 2016/06/05 22:32:31.595 kid1| http.cc(916) haveParsedReplyHeaders: HTTP CODE: 200 2016/06/05 22:32:31.595 kid1| ctx: exit level 0 2016/06/05 22:32:31.595 kid1| WARNING: Could not determine this machines public hostname. Please configure one or set 'visible_hostname'. 2016/06/05 22:32:31.595 kid1| WARNING: Could not determine this machines public hostname. Please configure one or set 'visible_hostname'. 2016/06/05 22:32:31.674 kid1| client_side.cc(1459) sendStartOfMessage: HTTP Client local=10.10.84.115:3128 remote=10.10.70.71:57168 FD 13 flags=1 2016/06/05 22:32:31.674 kid1| client_side.cc(1460) sendStartOfMessage: HTTP Client REPLY: --------- HTTP/1.1 200 OK Date: Sun, 05 Jun 2016 19:32:31 GMT Cache-Control: no-cache, no-store, must-revalidate Content-Type: image/gif Expires: 0 Pragma: no-cache Content-Length: 43 X-Cache: MISS from localhost X-Cache-Lookup: MISS from localhost:3128 Via: 1.1 localhost (squid/3.4.8) Connection: keep-alive

任何帮助表示赞赏。 编辑：Pragma：no-cache说我的鱿鱼不caching。 有没有办法解决这个问题？ 因为有了这个逻辑服务器可以说不caching一切。

因为有了这个逻辑服务器可以说不caching一切。

是的，就是这一点。 起源和用户代理知道更多关于资源的caching能力，以及服务caching请求的愿望，所以他们得到一组旋钮来控制caching。 你不想在caching中覆盖它，因为它打破了其他人依赖的各种重要假设。