{"id":1767,"date":"2019-10-10T19:26:41","date_gmt":"2019-10-10T11:26:41","guid":{"rendered":"https:\/\/www.xiaobo.li\/?p=1767"},"modified":"2019-10-10T19:26:41","modified_gmt":"2019-10-10T11:26:41","slug":"squid-tcp%e5%91%bd%e4%b8%ad%e7%8e%87%e8%a7%a3%e9%87%8a","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/1767","title":{"rendered":"SQUID TCP\u547d\u4e2d\u7387\u89e3\u91ca"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n#cat access.log|gawk \u2018{print $4}\u2019|sort|uniq -c|sort -nr<br>9568 TCP_IMS_HIT\/304<br>6313 TCP_HIT\/200<br>2133 TCP_MISS\/200<br>1568 TCP_MISS\/206<br>587 TCP_MEM_HIT\/200<br>531 TCP_MISS\/304<br>207 TCP_REFRESH_HIT\/200<br>152 TCP_REFRESH_HIT\/304<br>86 TCP_NEGATIVE_HIT\/404<br>69 TCP_MISS\/404<br>9 TCP_MISS\/000<br>4 TCP_MISS\/503<br>1 TCP_REFRESH_MISS\/000<br>1 TCP_DENIED\/400<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u4f7f\u7528\u4e0a\u9762\u7684\u65b9\u6cd5\uff0c\u5927\u7ea6\u7684\u5206\u6790\u4e00\u4e0b\u547d\u4ee4\u4e2d\u6bd4\u3002\u4ec0\u4e48\u610f\u601d\u5c31\u770b\u4e0b\u9762\u7684\u8be6\u89e3.<br>#cat \/var\/log\/squid\/access.log |grep TCP_MEM_HIT<br>\u5982\u679c\u770b\u5230\u5f88\u591a\u7684TCP_MEM_HIT\n \n\uff0c\u8fd9\u8868\u660e\u8be5\u6587\u4ef6\u662f\u4ece\u5185\u5b58\u7f13\u5b58\u8bfb\u53d6\u7684\uff0csquid\u5df2\u7ecf\u8d77\u4f5c\u7528\u4e86\uff01\u4f60\u518d\u7528\u6d4f\u89c8\u5668\u6253\u5f00\u8be5\u6587\u4ef6\uff0c\u5e94\u8be5\u662f\u5feb\u5982\u95ea\u7535\u4e86\u3002\u3002\u5475\u5475\uff0c\u5927\u529f\u544a\u6210\u4e86\uff01\u8fd8\u6709\u5176\u4ed6\u7c7b\u578b\u7684HIT\uff0c\u5982TCP_HIT\u7b49\u7b49\uff0c\u8fd9\u4e9b\u662f\u4ece\u78c1\u76d8\u8bfb\u53d6\u7684\uff0c\u6211\u89c9\u5f97\u52a0\u901f\u7684\u610f\u4e49\u4e0d\u5927\uff0c\u53ea\u4e0d\u8fc7\u7f13\u89e3\u4e86apache\u7684\u538b\u529b\u800c\u5df2\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u76f8\u5e94\u4e8eHTTP\u8bf7\u6c42\uff0c\u4e0b\u5217\u6807\u7b7e\u53ef\u80fd\u51fa\u73b0\u5728access.log\u6587\u4ef6\u7684\u7b2c\u56db\u4e2a\u57df\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_HIT<br>Squid\u53d1\u73b0\u8bf7\u6c42\u8d44\u6e90\u7684\u8c8c\u4f3c\u65b0\u9c9c\u7684\u62f7\u8d1d\uff0c\u5e76\u5c06\u5176\u7acb\u5373\u53d1\u9001\u5230\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_MISS<br>Squid\u6ca1\u6709\u8bf7\u6c42\u8d44\u6e90\u7684cache\u62f7\u8d1d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_REFERSH_HIT<br>Squid\u53d1\u73b0\u8bf7\u6c42\u8d44\u6e90\u7684\u8c8c\u4f3c\u9648\u65e7\u7684\u62f7\u8d1d\uff0c\u5e76\u53d1\u9001\u786e\u8ba4\u8bf7\u6c42\u5230\u539f\u59cb\u670d\u52a1\u5668\u3002\u539f\u59cb\u670d\u52a1\u5668\u8fd4\u56de304\uff08\u672a\u4fee\u6539\uff09\u54cd\u5e94\uff0c\u6307\u793asquid\u7684\u62f7\u8d1d\u4ecd\u65e7\u662f\u65b0\u9c9c\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_REF_FAIL_HIT<br>Squid\u53d1\u73b0\u8bf7\u6c42\u8d44\u6e90\u7684\u8c8c\u4f3c\u9648\u65e7\u7684\u62f7\u8d1d\uff0c\u5e76\u53d1\u9001\u786e\u8ba4\u8bf7\u6c42\u5230\u539f\u59cb\u670d\u52a1\u5668\u3002\u7136\u800c\uff0c\u539f\u59cb\u670d\u52a1\u5668\u54cd\u5e94\u5931\u8d25\uff0c\u6216\u8005\u8fd4\u56de\u7684\u54cd\u5e94Squid\u4e0d\u80fd\u7406\u89e3\u3002\u5728\u6b64\u60c5\u5f62\u4e0b\uff0csquid\u53d1\u9001\u73b0\u6709cache\u62f7\u8d1d\uff08\u5f88\u53ef\u80fd\u662f\u9648\u65e7\u7684\uff09\u5230\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_REFRESH_MISS<br>Squid\u53d1\u73b0\u8bf7\u6c42\u8d44\u6e90\u7684\u8c8c\u4f3c\u9648\u65e7\u7684\u62f7\u8d1d\uff0c\u5e76\u53d1\u9001\u786e\u8ba4\u8bf7\u6c42\u5230\u539f\u59cb\u670d\u52a1\u5668\u3002\u539f\u59cb\u670d\u52a1\u5668\u54cd\u5e94\u65b0\u7684\u5185\u5bb9\uff0c\u6307\u793a\u8fd9\u4e2acache\u62f7\u8d1d\u786e\u5b9e\u662f\u9648\u65e7\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_CLIENT_REFRESH_MISS<br>Squid\u53d1\u73b0\u4e86\u8bf7\u6c42\u8d44\u6e90\u7684\u62f7\u8d1d\uff0c\u4f46\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u5305\u542b\u4e86Cache-Control: no-cache\u6307\u4ee4\u3002Squid\u8f6c\u53d1\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u5230\u539f\u59cb\u670d\u52a1\u5668\uff0c\u5f3a\u8febcache\u786e\u8ba4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_IMS_HIT<br>\u5ba2\u6237\u7aef\u53d1\u9001\u786e\u8ba4\u8bf7\u6c42\uff0cSquid\u53d1\u73b0\u66f4\u8fd1\u6765\u7684\u3001\u8c8c\u4f3c\u65b0\u9c9c\u7684\u8bf7\u6c42\u8d44\u6e90\u7684\u62f7\u8d1d\u3002Squid\u53d1\u9001\u66f4\u65b0\u7684\u5185\u5bb9\u5230\u5ba2\u6237\u7aef\uff0c\u800c\u4e0d\u8054\u7cfb\u539f\u59cb\u670d\u52a1\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_SWAPFAIL_MISS<br>Squid\u53d1\u73b0\u8bf7\u6c42\u8d44\u6e90\u7684\u6709\u6548\u62f7\u8d1d\uff0c\u4f46\u4ece\u78c1\u76d8\u88c5\u8f7d\u5b83\u5931\u8d25\u3002\u8fd9\u65f6squid\u53d1\u9001\u8bf7\u6c42\u5230\u539f\u59cb\u670d\u52a1\u5668\uff0c\u5c31\u5982\u540c\u8fd9\u662f\u4e2acache\u4e22\u5931\u4e00\u6837\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_NEGATIVE_HIT<br>\u5728\u5bf9\u539f\u59cb\u670d\u52a1\u5668\u7684\u8bf7\u6c42\u5bfc\u81f4HTTP\u9519\u8bef\u65f6\uff0cSquid\u4e5f\u4f1acache\u8fd9\u4e2a\u54cd\u5e94\u3002\u5728\u77ed\u65f6\u95f4\u5185\u5bf9\u8fd9\u4e9b\u8d44\u6e90\u7684\u91cd\u590d\u8bf7\u6c42\uff0c\u5bfc\u81f4\u4e86\u5426\u547d\u4e2d\u3002\n negative_ttl\u6307\u4ee4\u63a7\u5236\u8fd9\u4e9b\u9519\u8bef\u88abcache\u7684\u65f6\u95f4\u6570\u91cf\u3002\u8bf7\u6ce8\u610f\u8fd9\u4e9b\u9519\u8bef\u53ea\u5728\u5185\u5b58cache\uff0c\u4e0d\u4f1a\u5199\u5f80\u78c1\u76d8\u3002\u4e0b\u5217HTTP\u72b6\u6001\u7801\u53ef\u80fd\u5bfc\u81f4\u5426\u5b9a\n cache\uff08\u4e5f\u9075\u5faa\u4e8e\u5176\u4ed6\u7ea6\u675f\uff09\uff1a 204, 305, 400, 403, 404, 405, 414, 500, 501, 502, 503,\n 504\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP_MEM_HIT<br>Squid\u5728\u5185\u5b58cache\u91cc\u53d1\u73b0\u8bf7\u6c42\u8d44\u6e90\u7684\u6709\u6548\u62f7\u8d1d\uff0c\u5e76\u5c06\u5176\u7acb\u5373\u53d1\u9001\u5230\u5ba2\u6237\u7aef\u3002\u6ce8\u610f\u8fd9\u70b9\u5e76\u975e\u7cbe\u786e\u7684\u5448\u73b0\u4e86\u6240\u6709\u4ece\u5185\u5b58\u670d\u52a1\u7684\u54cd\u5e94\u3002\u4f8b\u5982\uff0c\u67d0\u4e9bcache\u5728 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8d44\u6e90\u6765\u6e90\uff1a<br>http:\/\/www.wendangku.net\/doc\/0d7c5bb15ef7ba0d4b733b48.html<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>#cat access.log|gawk \u2018{print $4}\u2019|sort|u &hellip; <a href=\"https:\/\/www.xiaobo.li\/notes\/archives\/1767\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[273],"tags":[],"class_list":["post-1767","post","type-post","status-publish","format-standard","hentry","category-article"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/1767","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=1767"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/1767\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=1767"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=1767"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=1767"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}