{"id":624,"date":"2016-07-24T20:43:19","date_gmt":"2016-07-24T12:43:19","guid":{"rendered":"http:\/\/www.ipcpu.com\/?p=624"},"modified":"2016-07-24T20:43:19","modified_gmt":"2016-07-24T12:43:19","slug":"varnish-basic","status":"publish","type":"post","link":"https:\/\/c.ipcpu.com\/2016\/07\/varnish-basic\/","title":{"rendered":"Varnish\u57fa\u7840\u77e5\u8bc6"},"content":{"rendered":"
<\/div>\n

<\/p>\n

\u96f6\u3001\u6982\u8ff0<\/h2>\n

Varnish Cache\u662f\u4e00\u4e2aWeb \u5e94\u7528\u52a0\u901f\u5668\uff0c\u4e5f\u662f\u4e00\u4e2a\u77e5\u540d\u7684\u53cd\u5411\u4ee3\u7406\u7a0b\u5e8f\u3002\u4f60\u53ef\u4ee5\u628a\u5b83\u5b89\u88c5\u5728\u4efb\u4f55http\u670d\u52a1\u5668\u7684\u524d\u7aef\uff0c\u540c\u65f6\u5bf9\u5b83\u8fdb\u884c\u914d\u7f6e\u6765\u7f13\u5b58\u5185\u5bb9\u3002<\/p>\n

\u4e00\u3001\u5b89\u88c5<\/h2>\n

varnish\u76ee\u524d\u67093\u30014\u30015\u4e00\u5171\u4e09\u4e2a\u7248\u672c\uff0c\u76ee\u524d3\u7cfb\u5217\u7248\u672c\u5df2\u7ecf\u505c\u6b62\u66f4\u65b0\u548c\u7ef4\u62a4\u3002<\/p>\n

\u672c\u6587\u4ee54.1.3 \u4e3a\u4f8b\u8fdb\u884c\u8bb2\u89e3\u3002<\/p>\n

\u5b89\u88c5\u7684RPM\u6587\u4ef6\u53ef\u4ee5\u4ece\u5b98\u7f51\u4e0b\u8f7d https:\/\/repo.varnish-cache.org\/redhat\/<\/a><\/p>\n

\u4e8c\u3001Varnish\u7f13\u5b58\u539f\u7406<\/h2>\n

Varnish\u662f\u4e00\u4e2a\u9ad8\u901fHTTP\u53cd\u5411\u4ee3\u7406\u7a0b\u5e8f\u3002\u5b83\u4ece\u5ba2\u6237\u7aef\u63a5\u6536\u8bf7\u6c42\u5e76\u4e14\u5c1d\u8bd5\u4ece\u7f13\u5b58\u4e2d\u76f4\u63a5\u8fd4\u56de\u3002\u5982\u679cVarnish\u7f13\u5b58\u627e\u4e0d\u5230\u76f8\u5173\u6570\u636e\uff0c\u90a3\u4e48\u5b83\u5c06\u4f1a\u8bf7\u6c42\u670d\u52a1\u5668\uff0c\u83b7\u53d6\u5230\u670d\u52a1\u5668\u54cd\u5e94\u4e4b\u540e\uff0c\u5c06\u7ed3\u679c\u7f13\u5b58\u4e0b\u6765\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002
\n\u5f53Varnish\u5df2\u6709\u7f13\u5b58\u6765\u54cd\u5e94\u8bf7\u6c42\uff0c\u4e00\u822c\u54cd\u5e94\u901f\u5ea6\u90fd\u662f\u6beb\u79d2\u7ea7\u522b\u7684\uff0c\u5e76\u4e14\u6bd4\u8bf7\u6c42\u540e\u53f0\u670d\u52a1\u5668\u8981\u5feb\u4e24\u4e2a\u6570\u91cf\u7ea7\uff0c\u56e0\u6b64\u4f60\u53ef\u4ee5\u901a\u8fc7varnish\u6765\u54cd\u5e94\u66f4\u591a\u7684\u8bf7\u6c42\u3002
\nVarnish\u4f1a\u81ea\u5df1\u51b3\u5b9a\u662f\u901a\u8fc7\u7f13\u5b58\u76f4\u63a5\u8fd4\u56de\uff0c\u8fd8\u662f\u8bf7\u6c42\u540e\u53f0\u670d\u52a1\u5668\u6765\u83b7\u53d6\u7ed3\u679c\u3002\u540e\u53f0\u670d\u52a1\u5668\u53ef\u4ee5\u8ba9varnish\u7f13\u5b58\u5185\u5bb9\uff0c\u5e76\u643a\u5e26http\u54cd\u5e94\u5934Cache-Control\u3002\u4e5f\u6709\u4e00\u4e9b\u6761\u4ef6\u4e0bvarnish\u662f\u4e0d\u4f1a\u7f13\u5b58\uff0c\u6700\u5e38\u89c1\u7684\u60c5\u51b5\u662f\u4f7f\u7528\u4e86Cookie\u3002\u56e0\u4e3aCookie\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u5ba2\u6237\u7aef\u7f51\u7edc\u5bf9\u8c61\uff0cVarnish\u9ed8\u8ba4\u4e0d\u4f1a\u7f13\u5b58\u5b83\u3002<\/p>\n

\u4e09\u3001\u57fa\u672c\u914d\u7f6e<\/h2>\n

3.1 \u66f4\u6539\u76d1\u542c\u7aef\u53e3 \/etc\/sysconfig\/varnish<\/h4>\n
  1. VARNISH_LISTEN_PORT<\/span>=<\/span>6081<\/span><\/code><\/li><\/ol><\/pre>\n
    3.2    \u66f4\u6539\u540e\u7aef\u670d\u52a1\u5668\u5730\u5740\/etc\/varnish\/default.vcl<\/h4>\n
    1. backend <\/span>default<\/span> <\/span>{<\/span><\/code><\/li>
    2.     <\/span>.<\/span>host <\/span>=<\/span> <\/span>\"www.ipcpu.com\"<\/span>;<\/span><\/code><\/li>
    3.     <\/span>.<\/span>port <\/span>=<\/span> <\/span>\"80\"<\/span>;<\/span><\/code><\/li>
    4. }<\/span><\/code><\/li><\/ol><\/pre>\n
      3.3    \u542f\u52a8varnish<\/h4>\n
      1. \/etc\/<\/span>init<\/span>.<\/span>d<\/span>\/<\/span>varnish start<\/span><\/code><\/li><\/ol><\/pre>\n
        3.4    \u7b80\u5355\u6d4b\u8bd5<\/h4>\n
        1. [<\/span>root@QYER<\/span>-<\/span>1<\/span>-<\/span>17<\/span> soft<\/span>]#<\/span>curl  <\/span>-<\/span>I http<\/span>:<\/span>\/\/www.ipcpu.com -x 127.0.0.1:6081<\/span><\/code><\/li>
        2. HTTP<\/span>\/<\/span>1.1<\/span> <\/span>200<\/span> OK<\/span><\/code><\/li>
        3. Server<\/span>:<\/span> <\/span>Tengine<\/span><\/code><\/li>
        4. Date<\/span>:<\/span> <\/span>Mon<\/span>,<\/span> <\/span>28<\/span> <\/span>Nov<\/span> <\/span>2016<\/span> <\/span>06<\/span>:<\/span>55<\/span>:<\/span>05<\/span> GMT<\/span><\/code><\/li>
        5. Content<\/span>-<\/span>Type<\/span>:<\/span> text<\/span>\/<\/span>html<\/span>;<\/span> charset<\/span>=<\/span>UTF<\/span>-<\/span>8<\/span><\/code><\/li>
        6. Last<\/span>-<\/span>Modified<\/span>:<\/span> <\/span>Mon<\/span>,<\/span> <\/span>28<\/span> <\/span>Nov<\/span> <\/span>2016<\/span> <\/span>06<\/span>:<\/span>55<\/span>:<\/span>02<\/span> GMT<\/span><\/code><\/li>
        7. Vary<\/span>:<\/span> <\/span>Accept<\/span>-<\/span>Encoding<\/span><\/code><\/li>
        8. X<\/span>-<\/span>Varnish<\/span>:<\/span> <\/span>65538<\/span> <\/span>3<\/span><\/code><\/li>
        9. Age<\/span>:<\/span> <\/span>8<\/span><\/code><\/li>
        10. Via<\/span>:<\/span> <\/span>1.1<\/span> varnish<\/span>-<\/span>v4<\/span><\/code><\/li>
        11. Accept<\/span>-<\/span>Ranges<\/span>:<\/span> bytes<\/span><\/code><\/li>
        12. Connection<\/span>:<\/span> keep<\/span>-<\/span>alive<\/span><\/code><\/li><\/ol><\/pre>\n
          \u53ef\u4ee5\u770b\u5230\u660e\u663e\u7684varnish\u7684\u53c2\u6570X-Varnish\u548c\u7f13\u5b58\u5b58\u6d3b\u65f6\u95f4Age<\/p>\n
          \u56db\u3001varnish\u540e\u7aef\u5b58\u50a8<\/h2>\n
          varnish\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u5b58\u50a8\u540e\u7aef\uff0c\u5e38\u89c1\u6709\u4ee5\u4e0b\u4e24\u79cd\uff0c\u9ed8\u8ba4\u662f\u5185\u5b58\u65b9\u5f0f\u3002<\/p>\n
          \n
          \u5185\u5b58 Malloc 
          \n     Malloc\u662f\u57fa\u4e8e\u5185\u5b58\u7684\u5b58\u50a8\u65b9\u5f0f\u3002\u6bcf\u4e2a\u5bf9\u8c61\u90fd\u4f1a\u4ece\u5185\u5b58\u4e2d\u6765\u5206\u914d\u8d44\u6e90\u6765\u8fdb\u884c\u5b58\u50a8\u3002<\/p>\n
          \u6587\u4ef6 file 
          \n     \u6587\u4ef6\u5b58\u50a8\u4f7f\u7528 mmap \u901a\u8fc7\u975e\u8f6f\u94fe\u7684\u78c1\u76d8\u6587\u4ef6\u6765\u5b58\u50a8\u5185\u5b58\u4e2d\u7684\u5bf9\u8c61\u3002<\/p>\n<\/blockquote>\n
          \u540e\u7aef\u5b58\u50a8\u7684\u4fee\u6539\u662f\u5728\/etc\/sysconfig\/varnish\u6587\u4ef6\u4e2d\uff0c<\/p>\n
          1. # Backend storage specification<\/span><\/code><\/li>
          2. VARNISH_STORAGE<\/span>=<\/span>\"malloc,${VARNISH_STORAGE_SIZE}\"<\/span><\/code><\/li><\/ol><\/pre>\n
            \u6ce8\u610f\uff0c\u7f13\u5b58\u5b58\u50a8\u7684\u5b9e\u9645\u5b58\u50a8\u7a7a\u95f4\u53ef\u80fd\u4f1a\u8d85\u51fa\u4f60\u8bbe\u7f6e\uff0c\u6240\u4ee5\u5373\u4f7f\u4f60\u4f7f\u7528-s malloc,16G\u53c2\u6570\u8bbe\u7f6e\u4e86\u5b58\u50a8\u7a7a\u95f4\uff0cvarnish\u53ef\u80fd\u5b9e\u9645\u4f7f\u7528\u4e8632G\u90fd\u662f\u6709\u53ef\u80fd\u7684\u3002\u6240\u4ee5\uff0c\u5982\u679c\u60a8\u5728\u7f13\u5b58\u4e2d\u6709\u5927\u91cf\u6bd4\u8f83\u5c0f\u7684\u5b58\u50a8\u5bf9\u8c61\uff0c\u90a3\u4e48\u8fd9\u79cd\u95ee\u9898\u53ef\u80fd\u66f4\u4e3a\u663e\u8457\u3002<\/em><\/p>\n
            \u4e94\u3001Varnish\u8fdb\u7a0b\u7684\u5de5\u4f5c\u6a21\u5f0f<\/h2>\n
            varnish\u542f\u52a8\u6216\u67092\u4e2a\u8fdb\u7a0b master(management)\u8fdb\u7a0b\u548cchild(worker)\u8fdb\u7a0b\u3002master\u8bfb\u5165\u5b58\u50a8\u914d\u7f6e\u547d\u4ee4\uff0c\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u7136\u540efork\uff0c\u76d1\u63a7child\u3002child\u5219\u5206\u914d\u7ebf\u7a0b\u8fdb\u884ccache\u5de5\u4f5c\uff0cchild\u8fd8\u4f1a\u505a\u7ba1\u7406\u7ebf\u7a0b\u548c\u751f\u6210\u5f88\u591aworker\u7ebf\u7a0b\u3002 
            \nchild\u8fdb\u7a0b\u4e3b\u7ebf\u7a0b\u521d\u59cb\u5316\u8fc7\u7a0b\u4e2d\uff0c\u5c06\u5b58\u50a8\u5927\u6587\u4ef6\u6574\u4e2a\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\uff0c\u5982\u679c\u8be5\u6587\u4ef6\u8d85\u51fa\u7cfb\u7edf\u7684\u865a\u62df\u5185\u5b58\uff0c\u5219\u4f1a\u51cf\u5c11\u539f\u6765\u914d\u7f6emmap\u5927\u5c0f\uff0c\u7136\u540e\u7ee7\u7eed\u52a0\u8f7d\uff0c\u8fd9\u65f6\u5019\u521b\u5efa\u5e76\u521d\u59cb\u5316\u7a7a\u95f2\u5b58\u50a8\u7ed3\u6784\u4f53\uff0c\u653e\u5728\u5b58\u50a8\u7ba1\u7406\u7684struct\u4e2d\uff0c\u7b49\u5f85\u5206\u914d\u3002 
            \n\u63a5\u7740varnish\u67d0\u4e2a\u8d1f\u8d23\u63a5\u53e3\u65b0http\u8fde\u63a5\u7684\u7ebf\u7a0b\u5f00\u59cb\u7b49\u5f85\u7528\u6237\uff0c\u5982\u679c\u6709\u65b0\u7684http\u8fde\u63a5\uff0c\u4f46\u662f\u8fd9\u4e2a\u7ebf\u7a0b\u53ea\u8d1f\u8d23\u63a5\u6536\uff0c\u7136\u540e\u5524\u9192\u7b49\u5f85\u7ebf\u7a0b\u6c60\u4e2d\u7684work\u7ebf\u7a0b\uff0c\u8fdb\u884c\u8bf7\u6c42\u5904\u7406\u3002 
            \nworker\u7ebf\u7a0b\u8bfb\u5165uri\u540e\uff0c\u5c06\u4f1a\u67e5\u627e\u5df2\u6709\u7684object\uff0c\u547d\u4e2d\u76f4\u63a5\u8fd4\u56de\uff0c\u6ca1\u6709\u547d\u4e2d\uff0c\u5219\u4f1a\u4ece\u540e\u7aef\u670d\u52a1\u5668\u4e2d\u53d6\u51fa\u6765\uff0c\u653e\u5230\u7f13\u5b58\u4e2d\u3002\u5982\u679c\u7f13\u5b58\u5df2\u6ee1\uff0c\u4f1a\u6839\u636eLRU\u7b97\u6cd5\uff0c\u91ca\u653e\u65e7\u7684object\u3002\u5bf9\u4e8e\u91ca\u653e\u7f13\u5b58\uff0c\u6709\u4e00\u4e2a\u8d85\u65f6\u7ebf\u7a0b\u4f1a\u68c0\u6d4b\u7f13\u5b58\u4e2d\u6240\u6709object\u7684\u751f\u547d\u5468\u671f\uff0c\u5982\u679c\u7f13\u5b58\u8fc7\u671f\uff08ttl\uff09\uff0c\u5219\u5220\u9664\uff0c\u91ca\u653e\u76f8\u5e94\u7684\u5b58\u50a8\u5185\u5b58\u3002<\/p>\n
            \u516d\u3001varnish\u72b6\u6001<\/h2>\n
            varnishstat \u7528\u4e8e\u67e5\u770bvarnish\u7684\u7f13\u5b58\u72b6\u6001 
            \n 
            \n \u9ed8\u8ba4\u4e0d\u52a0\u4efb\u4f55\u53c2\u6570\u6253\u5f00varnishstat\u65f6\u663e\u793a\u7684\u5185\u5bb9\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u9ed8\u8ba4\u4f1a1\u79d2\u5237\u65b0\u4e00\u6b21\u6570\u636e\u3002<\/p>\n
            \n
            Hitrate ratio\u7531\u4e09\u4e2a\u6570\u5b57\u7ec4\u6210\uff0c\u7b2c\u4e00\u4e2a\u6570\u5b57\u8303\u56f40-10\uff0c\u7b2c\u4e8c\u4e2a\u6570\u5b57\u8303\u56f40-100\uff0c\u7b2c\u4e09\u4e2a\u6570\u5b57\u8303\u56f40-1000\u3002\u5206\u522b\u8868\u793a\u8fc7\u53bbN\u79d2\u5185\u7684Hitrate avg\u3002\u5982\u679c\u6253\u5f00\u7684\u65f6\u95f4\u8db3\u591f\u957f\uff0c\u4ee5\u4e0a\u4e09\u4e2a\u6570\u5b57\u5c31\u4f1a\u9010\u6e10\u53d8\u621010\uff0c100\uff0c1000\u3002 
            \n  Hitrate avg\u91cc\u7684\u5185\u5bb9\u662f\u547d\u4e2d\u7387\uff0c\u9700\u8981\u4e58\u4ee5100\u8f6c\u6362\u6210\u767e\u5206\u6bd4 \u3002<\/p>\n<\/blockquote>\n
            \u8fd8\u6709\u4e00\u4e9b\u9700\u8981\u6ce8\u610f\u7684\u53c2\u6570\u89e3\u91ca\u5982\u4e0b<\/p>\n
            \n
            Client connections accepted: \uff08\u6bcf\u79d2\u5904\u7406\u8fde\u63a5\u6570\uff09\u3002 
            \n  Client requests received\uff1a\u7ecf\u9a8c\u8868\u660econnection:request=1:10\u5de6\u53f3\u65f6\u6bd4\u8f83\u7406\u60f3\uff0c\u6bd4\u8fd9\u4e2a\u6570\u5927\u5f88\u591a\u6216\u8005\u5c0f\u5f88\u591a\u90fd\u662f\u4e0d\u597d\u7684\u3002\u4ee3\u8868\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6d4f\u89c8\u5668\u5411\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u53d1\u9001\u7684HTTP\u8bf7\u6c42\u7d2f\u79ef\u6b21\u6570\uff0c\u7531\u4e8e\u53ef\u80fd\u4f7f\u7528\u957f\u8fde\u63a5\uff0c\u6240\u4ee5\u5b83\u53ef\u80fd\u4f1a\u5927\u4e8e\u4e0a\u8fb9\u7684Client connections accepted\u3002 
            \n  Backend connections failures\uff1a\u8fd9\u4e2a\u6570\u5e94\u8be5\u5c3d\u53ef\u80fd\u5c0f\uff0c\u6ca1\u6709\u5c31\u6700\u597d\uff0c\u591a\u7684\u8bdd\u5c31\u8981\u770b\u770bbackend\u6307\u5411\u7684\u670d\u52a1\u662f\u5426\u6709\u95ee\u9898\u4e86\u3002 
            \n  N struct object\uff1a\u5f53\u524d\u88abcache\u7684\u6761\u76ee\u3002 
            \n  N worker threads\uff1a\u5f53\u524d\u5de5\u4f5c\u7ebf\u7a0b\u6570\u3002 
            \n  N worker threads created\uff1a\u521b\u5efa\u4e86\u591a\u5c11\u7ebf\u7a0b(should be close to the number you are running now) \u3002 
            \n  N worker threads not created \uff1a\u6700\u597d\u662f0\uff0c\u8868\u793avarnish\u5c1d\u8bd5\u521b\u5efa\u7ebf\u7a0b\u4f46\u5931\u8d25\u3002 
            \n  N worker threads limited \uff1a\u7531\u4e8e\u7ebf\u7a0b\u4e0a\u9650\u9650\u5236\u6216\u8005\u7ebf\u7a0b\u6c60\u53cd\u5e94\u5ef6\u8fdf\u5bfc\u81f4\u4e0d\u80fd\u6210\u529f\u521b\u5efa\u7684\u7ebf\u7a0b\u6570\uff0c\u8d8a\u5c0f\u8d8a\u597d\u3002 
            \n  N overflowed work requests \uff1a\u8fdb\u5165\u7b49\u5f85\u961f\u5217\u7684\u8bf7\u6c42\u6570\uff0c\u8d8a\u5c0f\u8d8a\u597d\u3002 
            \n  N dropped work requests\uff1a\u961f\u5217\u88ab\u585e\u6ee1\u540e\u6254\u6389\u7684\u8bf7\u6c42\uff0c\u8fd9\u4e2a\u6700\u597d\u4e0d\u8981\u6709\u3002 
            \n  N LRU nuked objects\uff1a\u7531\u4e8ecache\u7a7a\u95f4\u6ee1\u800c\u4e0d\u5f97\u4e0d\u6254\u6389\u7684cache\u6761\u76ee\uff0c\u5982\u679c\u8fd9\u4e2a\u6570\u5b57\u662f0\uff0c\u5c31\u6ca1\u5fc5\u8981\u589e\u52a0cache\u7684\u5927\u5c0f\u4e86\u3002 
            \n  n_expired \uff1a\u7531\u4e8ecache\u65f6\u95f4\u8d85\u65f6\u800c\u88ab\u6254\u6389\u7684cache\u6761\u76ee\uff0c\u5177\u4f53\u8981\u770b\u4f60\u7684ttl\u8bbe\u591a\u5927\u4e86\u3002 
            \n  Cache hits: \u4ee3\u8868\u5728\u8fd9\u4e9b\u8bf7\u6c42\u4e2d\uff0c\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u5728\u7f13\u5b58\u533a\u4e2d\u67e5\u627e\u5e76\u4e14\u547d\u4e2d\u7f13\u5b58\u7684\u6b21\u6570\u3002 
            \n  Cache misses: \u4ee3\u8868\u5728\u8fd9\u4e9b\u8bf7\u6c42\u4e2d\uff0c\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u5728\u7f13\u5b58\u533a\u4e2d\u67e5\u627e\u4f46\u662f\u6ca1\u6709\u547d\u4e2d\u7f13\u5b58\u7684\u6b21\u6570\u3002 
            \n  N expired objects: \u4ee3\u8868\u8fc7\u671f\u7684\u7f13\u5b58\u5185\u5bb9\u4e2a\u6570 
            \n  N LRU nuked objects: \u7531\u4e8ecache\u7a7a\u95f4\u6ee1\u800c\u4e0d\u5f97\u4e0d\u6254\u6389\u7684cache\u6761\u76ee\uff0c\u5982\u679c\u8fd9\u4e2a\u6570\u5b57\u662f0\uff0c\u5c31\u6ca1\u5fc5\u8981\u589e\u52a0ache\u7684\u5927\u5c0f\u4e86\u3002 
            \n  N LRU moved objects: \u4ee3\u8868\u88ab\u6dd8\u6c70\u7684\u7f13\u5b58\u5185\u5bb9\u4e2a\u6570 
            \n  Total header bytes: \u4ee3\u8868\u7f13\u5b58\u533a\u4e2d\u6240\u6709\u7f13\u5b58\u5185\u5bb9\u7684HTTP\u5934\u4fe1\u606f\u957f\u5ea6 
            \n  Total body bytes: \u4ee3\u8868\u7f13\u5b58\u533a\u4e2d\u6240\u6709\u7f13\u5b58\u5185\u5bb9\u7684\u6b63\u6587\u957f\u5ea6<\/p>\n<\/blockquote>\n
            \u4e03\u3001varnish\u65e5\u5fd7<\/h2>\n
            varnish\u63d0\u4f9b\u4e86varnishlog\u548cvarnishncsa\u4e24\u4e2a\u5de5\u5177\u7528\u4e8e\u65e5\u5fd7\u5904\u7406\u3002 
            \nvarnishlog \u7528\u4e8e\u663e\u793a\u5b9e\u65f6\u65e5\u5fd7\uff0cvarnishncsa\u662f\u4e00\u4e2adaemon\u8fdb\u7a0b\uff0c\u8d1f\u8d23\u5c06\u65e5\u5fd7\u5b89\u88c5\u7279\u5b9a\u683c\u5f0f\u5199\u5165\u6587\u4ef6\u3002<\/p>\n
            1. #@\u8f93\u51fa\u5f53\u524d\u65e5\u5fd7\u5230\u5c4f\u5e55<\/span><\/code><\/li>
            2. varnishlog <\/span><\/code><\/li>
            3. #@\u6253\u5370\u65e5\u5fd7\u5230\u4e00\u4e2a\u6587\u4ef6<\/span><\/code><\/li>
            4. varnishlog <\/span>-<\/span>w <\/span>\/<\/span>var<\/span>\/<\/span>log<\/span>\/<\/span>varnish<\/span>.<\/span>log<\/span><\/code><\/li><\/ol><\/pre>\n
              varnishncsa\u670d\u52a1\u9ed8\u8ba4\u662f\u5173\u95ed\u7684\uff0c\u53ef\u4ee5\u4f7f\u7528\/etc\/init.d\/varnishncsa start\u6253\u5f00\uff0c\u65e5\u5fd7\u6587\u4ef6\u7684\u683c\u5f0f\u53ef\u4ee5\u5728\u914d\u7f6e\u6587\u4ef6\/etc\/sysconfig\/varnishncsa\u4e2d\u5b9a\u4e49\u3002<\/p>\n
              1. #\u9ed8\u8ba4\u7684\u65e5\u5fd7\u683c\u5f0f \u201c%h %l %u %t \\\u201d%r\\\u201d %s %b \\\u201d%{Referer}i\\\u201d \\\u201d%{User-agent}i\\\u201d\u201d<\/span><\/code><\/li>
              2. LOG_FORMAT<\/span>=<\/span>'%h %l %u %t %{Varnish:hitmiss}x \"%r\" %s %b \"%{Referer}i\" \"%{User-Agent}i\" \"%{Cookie}i\" \"%{X-Forwarded-For}i\"'<\/span>  <\/span><\/code><\/li>
              3. DAEMON_OPTS<\/span>=<\/span>\"$DAEMON_OPTS $PREFER_X_FORWARDED_FOR -F '$LOG_FORMAT'\"<\/span> <\/span><\/code><\/li><\/ol><\/pre>\n
                \u516b\u3001\u5e38\u89c1\u9519\u8bef<\/h2>\n
                1.Cannot open socket: :6081: Address family not supported by protocol<\/p>\n
                1. Starting<\/span> <\/span>Varnish<\/span> <\/span>Cache<\/span>:<\/span> <\/span>Error<\/span>:<\/span> <\/span>Cannot<\/span> open socket<\/span>:<\/span> <\/span>:<\/span>6081<\/span>:<\/span> <\/span>Address<\/span> family <\/span>not<\/span> supported <\/span>by<\/span> protocol<\/span><\/code><\/li><\/ol><\/pre>\n
                  \u6b64\u539f\u56e0\u662f\u7cfb\u7edf\u5173\u95ed\u4e86IPv6\uff0cvarnish\u9ed8\u8ba4\u76d1\u542cIPv4\u548cIPv6\uff0c\u627e\u4e0d\u5230IPv6\u5c31\u4f1a\u62a5\u9519\u3002 
                  \n\u89e3\u51b3\u65b9\u6cd5\uff1a 
                  \n\u5728\u914d\u7f6e\u6587\u4ef6\u589e\u52a0\u914d\u7f6e\/etc\/sysconfig\/varnish\uff0c\u5f3a\u5236\u6307\u5b9a\u4f7f\u7528IPv4<\/p>\n
                  1. VARNISH_LISTEN_ADDRESS<\/span>=<\/span>0.0<\/span>.<\/span>0.0<\/span><\/code><\/li><\/ol><\/pre>\n
                    2.Backend host  resolves to too many addresses.<\/p>\n
                    1. Backend<\/span> host <\/span>\"www.baidu.com\"<\/span>:<\/span> resolves to too many addresses<\/span>.<\/span><\/code><\/li>
                    2. Only<\/span> one <\/span>IPv4<\/span> <\/span>and<\/span> one <\/span>IPv6<\/span> are allowed<\/span>.<\/span><\/code><\/li>
                    3. Please<\/span> specify which exact address you want to <\/span>use<\/span>,<\/span> we found all of these<\/span>:<\/span><\/code><\/li>
                    4.     <\/span>119.75<\/span>.<\/span>218.70<\/span>:<\/span>80<\/span><\/code><\/li>
                    5.     <\/span>119.75<\/span>.<\/span>217.109<\/span>:<\/span>80<\/span><\/code><\/li><\/ol><\/pre>\n
                      \u57df\u540d\u89e3\u6790\u5bf9\u5e94\u4e86\u591a\u4e2aIP\u5730\u5740\uff0c\u5fc5\u987b\u4f7f\u7528\u6307\u5411\u4e00\u4e2aIP\u7684\u57df\u540d\u3002<\/p>\n
                      \u4e5d\u3001\u53c2\u8003\u6587\u7ae0<\/h2>\n
                      https:\/\/onebitbug.me\/2012\/12\/04\/varnish-tune\/<\/a> 
                      \n                      https:\/\/jefferywang.gitbooks.io\/varnish_4_1_doc_zh\/content\/chapter2.html<\/a> 
                      \n                      https:\/\/varnish-cache.org\/<\/a> <\/p>\n
                      \u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1aIPCPU-\u7f51\u7edc\u4e4b\u8def<\/a> » Varnish\u57fa\u7840\u77e5\u8bc6<\/a><\/p>","protected":false},"excerpt":{"rendered":"
                      \u96f6\u3001\u6982\u8ff0 Varnish Cache\u662f\u4e00\u4e2aWeb \u5e94\u7528\u52a0\u901f\u5668\uff0c\u4e5f\u662f\u4e00\u4e2a\u77e5\u540d\u7684\u53cd\u5411\u4ee3\u7406\u7a0b\u5e8f\u3002\u4f60\u53ef\u4ee5\u628a\u5b83\u5b89\u88c5\u5728\u4efb\u4f55http\u670d\u52a1\u5668\u7684\u524d\u7aef\uff0c\u540c\u65f6\u5bf9\u5b83\u8fdb\u884c\u914d\u7f6e\u6765\u7f13\u5b58\u5185\u5bb9\u3002 \u4e00\u3001\u5b89\u88c5 varnish\u76ee\u524d\u67093\u30014\u30015\u4e00\u5171\u4e09\u4e2a\u7248\u672c\uff0c\u76ee\u524d3\u7cfb\u5217\u7248\u672c\u5df2\u7ecf\u505c\u6b62\u66f4\u65b0\u548c\u7ef4\u62a4\u3002 \u672c\u6587\u4ee54.1.3 \u4e3a\u4f8b\u8fdb\u884c\u8bb2\u89e3\u3002 \u5b89\u88c5\u7684RPM\u6587\u4ef6\u53ef\u4ee5\u4ece\u5b98\u7f51\u4e0b\u8f7d https:\/\/repo.varnish-cache.org\/redhat\/ \u4e8c\u3001Varnish\u7f13\u5b58\u539f\u7406 Varnish\u662f\u4e00\u4e2a\u9ad8\u901fHTTP\u53cd\u5411\u4ee3\u7406\u7a0b\u5e8f\u3002\u5b83\u4ece\u5ba2\u6237\u7aef\u63a5\u6536\u8bf7\u6c42\u5e76\u4e14\u5c1d\u8bd5\u4ece\u7f13\u5b58\u4e2d\u76f4\u63a5\u8fd4\u56de\u3002\u5982\u679cVarnish\u7f13\u5b58\u627e\u4e0d\u5230\u76f8\u5173\u6570\u636e\uff0c\u90a3\u4e48\u5b83\u5c06\u4f1a\u8bf7\u6c42\u670d\u52a1\u5668\uff0c\u83b7\u53d6\u5230\u670d\u52a1\u5668\u54cd\u5e94\u4e4b\u540e\uff0c\u5c06\u7ed3\u679c\u7f13\u5b58\u4e0b\u6765\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002 \u5f53Varnish\u5df2\u6709\u7f13\u5b58\u6765\u54cd\u5e94\u8bf7\u6c42\uff0c\u4e00\u822c\u54cd\u5e94\u901f\u5ea6\u90fd\u662f\u6beb\u79d2\u7ea7\u522b\u7684\uff0c\u5e76\u4e14\u6bd4\u8bf7\u6c42\u540e\u53f0\u670d\u52a1\u5668\u8981\u5feb\u4e24\u4e2a\u6570\u91cf\u7ea7\uff0c\u56e0\u6b64\u4f60\u53ef\u4ee5\u901a\u8fc7varnish\u6765\u54cd\u5e94\u66f4\u591a\u7684\u8bf7\u6c42\u3002 Varnish\u4f1a\u81ea\u5df1\u51b3\u5b9a\u662f\u901a\u8fc7\u7f13\u5b58\u76f4\u63a5\u8fd4\u56de\uff0c\u8fd8\u662f\u8bf7\u6c42\u540e\u53f0\u670d\u52a1\u5668\u6765\u83b7\u53d6\u7ed3\u679c\u3002\u540e\u53f0\u670d\u52a1\u5668\u53ef\u4ee5\u8ba9varnish\u7f13\u5b58\u5185\u5bb9\uff0c\u5e76\u643a\u5e26http\u54cd\u5e94\u5934Cache-Control\u3002\u4e5f\u6709\u4e00\u4e9b\u6761\u4ef6\u4e0bvarnish\u662f\u4e0d\u4f1a\u7f13\u5b58\uff0c\u6700\u5e38\u89c1\u7684\u60c5\u51b5\u662f\u4f7f\u7528\u4e86Cookie\u3002\u56e0\u4e3aCookie\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u5ba2\u6237\u7aef\u7f51\u7edc\u5bf9\u8c61\uff0cVarnish\u9ed8\u8ba4\u4e0d\u4f1a\u7f13\u5b58\u5b83\u3002 \u4e09\u3001\u57fa\u672c\u914d\u7f6e 3.1 \u66f4\u6539\u76d1\u542c\u7aef\u53e3 \/etc\/sysconfig\/varnish VARNISH_LISTEN_PORT=6081 3.2 \u66f4\u6539\u540e\u7aef\u670d\u52a1\u5668\u5730\u5740\/etc\/varnish\/default.vcl backend default { .host = “www.ipcpu.com”; .port = “80”;} 3.3 \u542f\u52a8varnish \/etc\/init.d\/varnish start 3.4 \u7b80\u5355\u6d4b\u8bd5 [root@QYER-1-17 soft]#curl -I http:\/\/www.ipcpu.com -x 127.0.0.1:6081HTTP\/1.1 200 OKServer: TengineDate: Mon, 28 Nov 2016 06:55:05 GMTContent-Type: text\/html; charset=UTF-8Last-Modified: Mon, 28 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[83,84,17,14,85,86,87,46,88],"_links":{"self":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/624"}],"collection":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/comments?post=624"}],"version-history":[{"count":0,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/624\/revisions"}],"wp:attachment":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/media?parent=624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/categories?post=624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/tags?post=624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}