{"id":493,"date":"2017-11-29T16:29:25","date_gmt":"2017-11-29T08:29:25","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=493"},"modified":"2017-11-29T16:29:25","modified_gmt":"2017-11-29T08:29:25","slug":"%e8%ae%b0%e4%b8%80%e6%ac%a1%e5%8e%8b%e6%b5%8b%e5%bc%95%e8%b5%b7%e7%9a%84nginx%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=493","title":{"rendered":"\u8bb0\u4e00\u6b21\u538b\u6d4b\u5f15\u8d77\u7684nginx\u8d1f\u8f7d\u5747\u8861\u6027\u80fd\u8c03\u4f18"},"content":{"rendered":"

\u8fd9\u8fb9\u6709\u4e2a\u6027\u80fd\u8981\u6c42\u6781\u9ad8\u7684api\u8981\u4e0a\u7ebf\uff0c\u8fd9\u4e2a\u670d\u52a1\u7aef\u662fgolang http\u6a21\u5757\u5b9e\u73b0\u7684\u3002\u5728\u4e0a\u7ebf\u4e4b\u524d\u6211\u4eec\u7406\u6240\u5f53\u7136\u7684\u8981\u505a\u538b\u529b\u6d4b\u8bd5\u3002\u8d77\u521d\u662f \u201c\u5c0f\u767d\u540c\u5b66\u201d \u8d77\u5934\u8fdb\u884c\u538b\u529b\u6d4b\u8bd5\uff0c\u4f46\u5f53\u6211\u770b\u5230\u90a3\u538b\u529b\u6d4b\u8bd5\u7684\u7ed3\u679c\u65f6\uff0c\u6211\u4e5f\u662f\u9017\u4e50\u4e86\u3002 \u00a0 \u73b0\u8c61\u662f\uff0c\u76f4\u63a5\u8bbf\u95eeGolang http api\u662f\u6bcf\u79d2\u53ef\u4ee5\u52303.5W\u7684\u8bbf\u95ee, \u00a0\u4e3a\u4e86\u7406\u8bba\u627f\u53d7\u66f4\u5f3a\u7684QPS\uff0c\u591a\u5f00\u4e86\u51e0\u4e2ago http api\u8fdb\u7a0b\u7aef\u53e3\uff0c\u53c8\u5728\u8fd9\u524d\u9762\u52a0\u4e86\u5c42nginx\u8d1f\u8f7d\u5747\u8861\uff0c\u7ed3\u679c\u5f80nginx\u538b\u6d4b\u7684\u7ed3\u679c\u662f\u6bcf\u79d2\u624d\u53ef\u4ee5\u89e3\u51b31.5w\u7684\u8bbf\u95ee\u91cf\u3002 \u8fd9\u7ed3\u679c\u8ba9\u9ad8\u7ea7\u9ed1 \u201c\u5c0f\u767d\u201d \u628anginx\u53c8\u7ed9\u9119\u89c6\u4e86\u3002<\/p>\n

\u867d\u7136\u54e5\u5e73\u65f6\u5f00\u53d1\u4efb\u52a1\u5f88\u9971\u548c\uff0c\u53c8\u56e0\u4e3a\u5e26\u51e0\u4e2a\u65b0\u4eba\u7684\u539f\u56e0\uff0c\u6709\u70b9\u5fc3\u7d2f\u3002 \u4f46\u54e5\u8fd8\u662f\u62bd\u51fa\u5b9d\u8d35\u7684\u65f6\u95f4\u6765\u89e3\u51b3nginx\u5728\u538b\u529b\u6d4b\u8bd5\u4e0b\u6027\u80fd\u4e0a\u4e0d\u53bb\u7684\u95ee\u9898\u3002 \u54c8\u54c8\uff0c\u8fd9\u91cc\u80af\u5b9a\u6709\u4eba\u8981\u6253\u6211\u4e86\u3002 \u00a0\u8bf4\u5b9e\u8bdd\uff0c\u505a\u8fd0\u7ef4\u867d\u7136\u80fd\u65f6\u5e38\u78b0\u4e00\u4e9b\u8d1f\u8f7d\u5747\u8861\u8c03\u5ea6\u5668\uff0c\u4f46\u7531\u4e8e\u5f88\u591a\u65f6\u5019\u914d\u7f6e\u90fd\u6807\u51c6\u5316\u4e86\uff0c\u65b0\u5f00\u4e00\u4e2a\u4e1a\u52a1\u7ebf\uff0c\u628a\u914d\u7f6e\u4e00scp\uff0c\u7136\u540e\u9009\u62e9\u6027\u7684\u4fee\u6539\u57df\u540d\u53calocation\u5c31\u53ef\u4ee5\u4e86\uff0c\u8fd8\u771f\u662f\u6ca1\u9047\u5230\u8fc7\u8fd9\u6b21\u7684\u95ee\u9898\u3002<\/p>\n

\u6211\u4eec\u5728\u5bfb\u627e\u6027\u80fd\u74f6\u9888\u7684\u662f\u65f6\u5019\uff0c\u4f1a\u9891\u7e41\u7684\u4f7f\u7528\u540e\u9762\u7684\u5de5\u5177\u8fdb\u884c\u76d1\u63a7\uff0c\u63a8\u8350\u5927\u5bb6\u4f7f\u7528tmux\u6216\u8005screen\u5f00\u542f\u591a\u4e2a\u7ec8\u7aef\u76d1\u63a7\uff0c\u7528top\u53ef\u4ee5\u770b\u5230nginx\u53cago api\u7684cpu\u5360\u7528\u7387\uff0cload\u503c\uff0crun\u6570\uff0c\u5404\u4e2acpu\u6838\u5fc3\u7684\u767e\u5206\u6bd4\uff0c\u5904\u7406\u7f51\u7edc\u7684\u4e2d\u65ad\u3002\u7528dstat\u53ef\u4ee5\u770b\u5230\u6d41\u91cf\u53ca\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u6d4b\u8bd5\u3002 \u00a0ss + netstat \u67e5\u770b\u8fde\u63a5\u6570\u3002<\/p>\n

\u9996\u5148\u662f\u538b\u529b\u6d4b\u8bd5\u7684\u65b9\u6cd5\u95ee\u9898<\/p>\n

\u4ee5\u524d\u505a\u8fd0\u7ef4\u7684\u65f6\u5019\uff0c\u6211\u4eec\u4e00\u822c\u4e0d\u4f1a\u7528\u7b80\u5355\u7684ab\u6765\u8fdb\u884c\u538b\u6d4b\uff0c\u8fd9\u6837\u4f1a\u9020\u6210\u538b\u529b\u6e90\u8fc7\u70ed\u7684\u60c5\u51b5\uff0c\u6b63\u5e38\u7684\u9488\u5bf9\u670d\u52a1\u7aef\u6d4b\u8bd5\u7684\u65b9\u6cd5\u662f\uff0c\u5206\u5e03\u5f0f\u538b\u529b\u6d4b\u8bd5\uff0c\u4e00\u4e2a\u4e3b\u673a\u538b\u6d4b\u7684\u7ed3\u679c\u5f88\u662f\u4e0d\u51c6\uff0c\u5f53\u7136\u524d\u63d0\u662f \u670d\u52a1\u7aef\u7684\u6027\u80fd\u591f\u9ad8\uff0c\u522b\u5c3c\u739b\u6574\u4e2apython django\u5c31\u7528\u5206\u5e03\u5f0f\u538b\u6d4b\uff0c\u968f\u4fbf\u627e\u4e2awebbench,ab , boom\u8fd9\u7c7b\u7684http\u538b\u6d4b\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n

\u5173\u4e8e\u5ba2\u6237\u7aef\u538b\u6d4b\u8fc7\u70ed\u7684\u60c5\u51b5\u6709\u51e0\u4e2a\u5143\u7d20\uff0c\u6700\u4e3b\u8981\u7684\u5143\u7d20\u662f\u7aef\u53e3\u5360\u7528\u60c5\u51b5\u3002\u9996\u5148\u6211\u4eec\u9700\u8981\u660e\u786e\u51e0\u4e2a\u70b9,\u00a0\u4f5c\u4e3a\u670d\u52a1\u7aef\u53ea\u662f\u6d88\u8017fd\u800c\u5df2\uff0c\u4f46\u662f\u5ba2\u6237\u7aef\u662f\u9700\u8981\u5360\u7528\u7aef\u53e3\u6765\u53d1\u8d77\u8bf7\u6c42\u3002\u00a0\u5982\u679c\u4f60\u81ea\u5df1\u540c\u65f6\u4f5c\u4e3a\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\uff0c\u4f1a\u88ab\u53d7\u9650\u4e8e65535-1024\u7684\u9650\u5236\uff0c1024\u5185\u4e00\u822c\u662f\u5e38\u89c4\u7684\u7cfb\u7edf\u4fdd\u7559\u7aef\u53e3\u3002 \u00a0 \u5982\u679c\u4f60\u6309\u716765535-1024\u8ba1\u7b97\u7684\u8bdd\uff0c\u4f60\u53ef\u4ee5\u5360\u752864511\u7aef\u53e3\u6570\uff0c\u4f46\u5982\u679c\u4f60\u662f\u81ea\u5df1\u538b\u529b\u6d4b\u8bd5nginx\uff0c\u7136\u540enginx\u53c8\u53cd\u5411\u4ee3\u7406\u51e0\u4e2agolang http api\u3002 \u00a0\u90a3\u4e48\u8fd9\u7aef\u53e3\u88ab\u4e25\u91cd\u7684\u7f29\u6c34\u4e86\u3002 \u00a0 \u5f53\u4f60\u538b\u6d4b\u7684\u6570\u76ee\u624d6w\u4ee5\u4e0a\uff0c\u5f88\u660e\u663e\u62a5\u9519\uff0c\u4e0d\u60f3\u62a5\u9519\uff0c\u90a3\u4e48\u53ea\u80fd\u8fdb\u884c\u6392\u961f\u963b\u585e\uff0c\u597d\u8ba9\u5ba2\u6237\u7aef\u5b8c\u6210\u8be5\u8bf7\u6c42\u3002<\/p>\n

\u53e6\u5916\u4e00\u70b9\u662fnginx \u914d\u7f6e\u95ee\u9898\u3002<\/p>\n

\u8fd9\u4e00\u70b9\u5f88\u91cd\u8981\uff0c\u4e5f\u662f\u6700\u57fa\u672c\u7684\u8981\u6c42\uff0c\u5982\u679cnginx worker\u8fde\u63a5\u6570\u8fc7\u5c11\u7684\u5316\uff0c\u4f60\u7684\u8bf7\u6c42\u8fde\u63a5\u5c31\u7b97\u6ca1\u6709\u88ab\u963b\u585e\u5230backlog\u961f\u5217\u5916\uff0cnginx worker\u4e5f\u4f1a\u56e0\u4e3a\u8fc7\u8f7d\u4fdd\u62a4\u4e0d\u4f1a\u5904\u7406\u65b0\u7684\u8bf7\u6c42\u3002nginx\u7684\u6700\u5927\u8fde\u63a5\u6570\u662fworker num *worker_connections, \u9ed8\u8ba4worker_connections\u662f1024, \u76f4\u63a5\u5e72\u523010w\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n

\u5728\u6211\u4eec\u914d\u7f6e\u8c03\u6574\u4e4b\u540e\uff0c\u8bbf\u95ee\u7684\u901f\u5ea6\u6709\u660e\u663e\u7684\u63d0\u5347\uff0c\u4f46\u8fd8\u662f\u6ca1\u6709\u8fbe\u5230\u6211\u4eec\u7684\u9884\u671f\u3002 \u63a5\u7740\u901a\u8fc7lsof\u8ffd\u4e86\u4e0b\u8fdb\u7a0b\uff0c\u53d1\u73b0nginx \u8ddf \u540e\u7aef\u521b\u5efa\u4e86\u5927\u91cf\u7684\u8fde\u63a5\u3002 \u00a0\u8fd9\u5f88\u660e\u663e\u662f\u6ca1\u6709\u4f7f\u7528http1.1\u957f\u8fde\u63a5\u5bfc\u81f4\u7684\uff0c\u4f7f\u7528tcpdump\u6293\u5305\u5206\u6790\u4e86\u4e0b\uff0c\u679c\u7136\u662fhttp1.0\u77ed\u94fe\u63a5\uff0c\u867d\u7136\u6211\u4eec\u5728sysctl\u5185\u6838\u91cc\u505a\u4e86\u4e00\u4e9b\u7f51\u7edctcp\u56de\u6536\u7684\u4f18\u5316\uff0c\u4f46\u90a3\u4e5f\u8d76\u4e0d\u4e0a\u538b\u529b\u6d4b\u8bd5\u5e26\u6765\u7684\u9891\u7e41\u521b\u5efatcp\u7684\u6d88\u8017\u3002 \u00a0 \u679c\u7136\u5728upstream\u52a0\u4e86keepalive\u3002<\/p>\n

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4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
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15<\/div>\n<\/div>\n<\/td>\n
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# xiaorui.cc<\/span><\/div>\n
<\/div>\n
COMMAND\u00a0\u00a0\u00a0\u00a0 <\/span>PID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>USER<\/span>\u00a0\u00a0 <\/span>FD\u00a0\u00a0 <\/span>TYPE<\/span>\u00a0\u00a0\u00a0\u00a0<\/span>DEVICE<\/span> SIZE<\/span>\/<\/span>OFF <\/span>NODE <\/span>NAME<\/span><\/div>\n
python<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>538<\/span> ruifengyun<\/span>\u00a0\u00a0\u00a0\u00a0<\/span>9u<\/span>\u00a0\u00a0<\/span>IPv4<\/span> 595559383<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP<\/span> 58.215.141.194<\/span>:<\/span>46665<\/span>-><\/span>58.215.141.83<\/span>:<\/span>9001<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0\u00a0\u00a0<\/span>5u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660251515<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP<\/span> *<\/span>:<\/span>9001<\/span> (<\/span>LISTEN<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0 <\/span>10u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660870187<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP <\/span>localhost<\/span>:<\/span>9001<\/span>-><\/span>localhost<\/span>:<\/span>46679<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0 <\/span>13u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660870138<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP <\/span>localhost<\/span>:<\/span>9001<\/span>-><\/span>localhost<\/span>:<\/span>46608<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0 <\/span>14u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660870137<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP <\/span>localhost<\/span>:<\/span>9001<\/span>-><\/span>localhost<\/span>:<\/span>46607<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0 <\/span>22u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660870153<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP <\/span>localhost<\/span>:<\/span>9001<\/span>-><\/span>localhost<\/span>:<\/span>46632<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0 <\/span>23u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660870143<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP <\/span>localhost<\/span>:<\/span>9001<\/span>-><\/span>localhost<\/span>:<\/span>46618<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0 <\/span>27u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660870166<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP <\/span>localhost<\/span>:<\/span>9001<\/span>-><\/span>localhost<\/span>:<\/span>46654<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0 <\/span>73u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660870191<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP <\/span>localhost<\/span>:<\/span>9001<\/span>-><\/span>localhost<\/span>:<\/span>46685<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0 <\/span>85u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660870154<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP <\/span>localhost<\/span>:<\/span>9001<\/span>-><\/span>localhost<\/span>:<\/span>46633<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
test<\/span>_<\/span>dic4\u00a0\u00a0<\/span>7476<\/span> ruifengyun<\/span>\u00a0\u00a0 <\/span>87u<\/span>\u00a0\u00a0<\/span>IPv6<\/span> 660870147<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>0t0<\/span>\u00a0\u00a0<\/span>TCP <\/span>localhost<\/span>:<\/span>9001<\/span>-><\/span>localhost<\/span>:<\/span>46625<\/span> (<\/span>ESTABLISHED<\/span>)<\/span><\/div>\n
.<\/span>.<\/span>.<\/span>.<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

 <\/p>\n

\u6458\u5f55\u5b98\u65b9\u6587\u6863\u7684\u8bf4\u660e\u5982\u4e0b\u3002\u8be5\u53c2\u6570\u5f00\u542f\u4e0e\u4e0a\u6e38\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u8fde\u63a5\u6c60\uff0c\u5176\u6570\u503c\u4e3a\u6bcf\u4e2anginx worker\u53ef\u4ee5\u4fdd\u6301\u7684\u6700\u5927\u8fde\u63a5\u6570\uff0c\u9ed8\u8ba4\u4e0d\u8bbe\u7f6e\uff0c\u5373nginx\u4f5c\u4e3a\u5ba2\u6237\u7aef\u65f6keepalive\u672a\u751f\u6548\u3002<\/p>\n

Activates cache of connections to upstream servers<\/p>\n

The connections parameter sets the maximum number of idle keepalive connections to upstream servers that are retained in the cache per one worker process. When this number is exceeded, the least recently used connections are closed<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
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1<\/div>\n
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4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
8<\/div>\n
9<\/div>\n
10<\/div>\n
11<\/div>\n
12<\/div>\n
13<\/div>\n
14<\/div>\n
15<\/div>\n
16<\/div>\n<\/div>\n<\/td>\n
\n
\n
# xiaorui.cc<\/span><\/div>\n
upstream<\/span> http_backend<\/span> {<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/span>server<\/span> 127.0.0.1<\/span>:<\/span>8080<\/span>;<\/span><\/div>\n
<\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/span>keepalive<\/span> 256<\/span>;<\/span><\/div>\n
}<\/span><\/div>\n
server<\/span> {<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>.<\/span>.<\/span><\/div>\n
<\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/span>location<\/span> \/<\/span>http<\/span>\/<\/span> {<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>proxy_pass <\/span>http<\/span>:<\/span>\/<\/span>\/<\/span>http_backend<\/span>;<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>proxy_http<\/span>_<\/span>version 1.1<\/span>;<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>proxy_set_header <\/span>Connection<\/span> “”<\/span>;<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>.<\/span>.<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span><\/div>\n
}<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

 <\/p>\n

\u7ee7\u7eed\u8fdb\u884c\u538b\u529b\u6d4b\u8bd5\uff0c\u8fd4\u73b0\u8fd9\u8bbf\u95ee\u91cf\u8fd8\u662f\u90a3\u6837\uff0c\u6ca1\u6709\u4ec0\u4e48\u63d0\u5347\uff0c\u901a\u8fc7\u6392\u9664\u95ee\u9898\u786e\u8ba4\u53c8\u662f\u8fde\u63a5\u6570\u5927\u5f15\u8d77\u7684\uff0c\u8fd9\u957f\u8fde\u63a5\u4e0d\u751f\u6548\u5440\u3002 \u4ee5\u524d\u6211\u5728\u7ebf\u4e0a\u4e5f\u662f\u8fd9\u4e48\u8c03\u914d\u7684\uff0c\u5e94\u8be5\u6ca1\u95ee\u9898\u3002 \u00a0\u6700\u540e\u901a\u8fc7nginx error log\u627e\u5230\u4e86\u539f\u56e0\u3002 \u00a0\u8fd9Nginx\u7248\u672c\u5c45\u7136\u4e0d\u652f\u6301keepalive \u957f\u8fde\u63a5\uff0c\u6ca1\u62db\uff0c\u6362\u4e2a\u7248\u672c\u518d\u6b21\u6d4b\u8bd5\u3002<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
8<\/div>\n
9<\/div>\n
10<\/div>\n<\/div>\n<\/td>\n
\n
\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 16<\/span>:<\/span>34<\/span>:<\/span>12<\/span> [<\/span>error<\/span>]<\/span> 15419<\/span>#0: *9421660 connect() failed (111: Connection refused) while connecting to upstream, client: 10.1.1.58, server: , request: “GET \/ HTTP\/1.0”, upstream: “http:\/\/127.0.0.1:9001\/”, host: “10.1.1.63”<\/span><\/div>\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 16<\/span>:<\/span>34<\/span>:<\/span>12<\/span> [<\/span>error<\/span>]<\/span> 15418<\/span>#0: *9423639 connect() failed (111: Connection refused) while connecting to upstream, client: 10.1.1.58, server: , request: “GET \/ HTTP\/1.0”, upstream: “http:\/\/127.0.0.1:9004\/”, host: “10.1.1.63”<\/span><\/div>\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 16<\/span>:<\/span>34<\/span>:<\/span>12<\/span> [<\/span>error<\/span>]<\/span> 15418<\/span>#0: *9423639 no live upstreams while connecting to upstream, client: 10.1.1.58, server: , request: “GET \/ HTTP\/1.0”, upstream: “http:\/\/test_servers\/”, host: “10.1.1.63”<\/span><\/div>\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 16<\/span>:<\/span>34<\/span>:<\/span>12<\/span> [<\/span>error<\/span>]<\/span> 15418<\/span>#0: *9393899 connect() failed (111: Connection refused) while connecting to upstream, client: 10.1.1.58, server: , request: “GET \/ HTTP\/1.0”, upstream: “http:\/\/127.0.0.1:9004\/”, host: “10.1.1.63”<\/span><\/div>\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 16<\/span>:<\/span>58<\/span>:<\/span>13<\/span> [<\/span>notice<\/span>]<\/span> 26449<\/span>#26449: signal process started<\/span><\/div>\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 16<\/span>:<\/span>58<\/span>:<\/span>13<\/span> [<\/span>emerg<\/span>]<\/span> 27280<\/span>#0: unknown directive “keepalive” in \/etc\/nginx\/conf.d\/test_multi.conf:7<\/span><\/div>\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 17<\/span>:<\/span>02<\/span>:<\/span>18<\/span> [<\/span>notice<\/span>]<\/span> 3141<\/span>#3141: signal process started<\/span><\/div>\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 17<\/span>:<\/span>02<\/span>:<\/span>18<\/span> [<\/span>emerg<\/span>]<\/span> 27280<\/span>#0: unknown directive “keepalive” in \/etc\/nginx\/conf.d\/test_multi.conf:7<\/span><\/div>\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 17<\/span>:<\/span>02<\/span>:<\/span>44<\/span> [<\/span>notice<\/span>]<\/span> 4079<\/span>#4079: signal process started<\/span><\/div>\n
2016<\/span>\/<\/span>06<\/span>\/<\/span>24<\/span> 17<\/span>:<\/span>02<\/span>:<\/span>44<\/span> [<\/span>emerg<\/span>]<\/span> 27280<\/span>#0: unknown directive “keepalive” in \/etc\/nginx\/conf.d\/test_multi.conf:7<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

 <\/p>\n

\u7b80\u5355\u63cf\u8ff0\u4e0bnginx upstream keepalive\u662f\u4e2a\u600e\u4e48\u4e00\u56de\u4e8b?<\/p>\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b Nginx \u8bbf\u95ee\u540e\u7aef\u90fd\u662f\u7528\u7684\u77ed\u8fde\u63a5(HTTP1.0)\uff0c\u4e00\u4e2a\u8bf7\u6c42\u6765\u4e86\uff0cNginx \u65b0\u5f00\u4e00\u4e2a\u7aef\u53e3\u548c\u540e\u7aef\u5efa\u7acb\u8fde\u63a5\uff0c\u8bf7\u6c42\u7ed3\u675f\u8fde\u63a5\u56de\u6536\u3002<\/p>\n

\u5982\u8fc7\u914d\u7f6e\u4e86http 1.1\u957f\u8fde\u63a5\uff0c\u90a3\u4e48Nginx\u4f1a\u4ee5\u957f\u8fde\u63a5\u4fdd\u6301\u540e\u7aef\u7684\u8fde\u63a5\uff0c\u5982\u679c\u5e76\u53d1\u8bf7\u6c42\u8d85\u8fc7\u4e86 keepalive \u6307\u5b9a\u7684\u6700\u5927\u8fde\u63a5\u6570\uff0cNginx \u4f1a\u542f\u52a8\u65b0\u7684\u8fde\u63a5 \u6765\u8f6c\u53d1\u8bf7\u6c42\uff0c\u65b0\u8fde\u63a5\u5728\u8bf7\u6c42\u5b8c\u6bd5\u540e\u5173\u95ed\uff0c\u800c\u4e14\u65b0\u5efa\u7acb\u7684\u8fde\u63a5\u662f\u957f\u8fde\u63a5\u3002<\/p>\n

\u4e0b\u56fe\u662fnginx upstream keepalive\u957f\u8fde\u63a5\u7684\u5b9e\u73b0\u539f\u7406.<\/p>\n

\u9996\u5148\u6bcf\u4e2a\u8fdb\u7a0b\u9700\u8981\u4e00\u4e2aconnection pool\uff0c\u91cc\u9762\u90fd\u662f\u957f\u8fde\u63a5\uff0c\u591a\u8fdb\u7a0b\u4e4b\u95f4\u662f\u4e0d\u9700\u8981\u5171\u4eab\u8fd9\u4e2a\u8fde\u63a5\u6c60\u7684\u3002 \u4e00\u65e6\u4e0e\u540e\u7aef\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\uff0c\u5219\u5728\u5f53\u524d\u8bf7\u6c42\u8fde\u63a5\u7ed3\u675f\u4e4b\u540e\u4e0d\u4f1a\u7acb\u5373\u5173\u95ed\u8fde\u63a5\uff0c\u800c\u662f\u628a\u7528\u5b8c\u7684\u8fde\u63a5\u4fdd\u5b58\u5728\u4e00\u4e2akeepalive connection pool\u91cc\u9762\uff0c\u4ee5\u540e\u6bcf\u6b21\u9700\u8981\u5efa\u7acb\u5411\u540e\u8fde\u63a5\u7684\u65f6\u5019\uff0c\u53ea\u9700\u8981\u4ece\u8fd9\u4e2a\u8fde\u63a5\u6c60\u91cc\u9762\u627e\uff0c\u5982\u679c\u627e\u5230\u5408\u9002\u7684\u8fde\u63a5\u7684\u8bdd\uff0c\u5c31\u53ef\u4ee5\u76f4\u63a5\u6765\u7528\u8fd9\u4e2a\u8fde\u63a5\uff0c\u4e0d\u9700\u8981\u91cd\u65b0\u521b\u5efasocket\u6216\u8005\u53d1\u8d77connect()\u3002\u8fd9\u6837\u65e2\u7701\u4e0b\u5efa\u7acb\u8fde\u63a5\u65f6\u5728\u63e1\u624b\u7684\u65f6\u95f4\u6d88\u8017\uff0c\u53c8\u53ef\u4ee5\u907f\u514dTCP\u8fde\u63a5\u7684slow start\u3002\u5982\u679c\u5728keepalive\u8fde\u63a5\u6c60\u627e\u4e0d\u5230\u5408\u9002\u7684\u8fde\u63a5\uff0c\u90a3\u5c31\u6309\u7167\u539f\u6765\u7684\u6b65\u9aa4\u91cd\u65b0\u5efa\u7acb\u8fde\u63a5\u3002 \u6211\u6ca1\u6709\u770b\u8fc7nginx\u5728\u8fde\u63a5\u6c60\u4e2d\u67e5\u627e\u53ef\u7528\u8fde\u63a5\u7684\u4ee3\u7801\uff0c\u4f46\u662f\u6211\u81ea\u5df1\u5199\u8fc7redis\uff0cmysqldb\u7684\u8fde\u63a5\u6c60\u4ee3\u7801\uff0c\u903b\u8f91\u5e94\u8be5\u90fd\u662f\u4e00\u6837\u7684\u3002\u8c01\u7528\u8c01pop\uff0c\u7528\u5b8c\u4e86\u518dpush\u8fdb\u53bb\uff0c\u8fd9\u6837\u65f6\u95f4\u624dO(1)\u3002<\/p>\n

\u5982\u679c\u4f60\u7684\u8fde\u63a5\u6c60\u7684\u6570\u63a7\u5236\u5728128\uff0c\u4f46\u56e0\u4e3a\u4f60\u8981\u5e94\u5bf9\u66f4\u591a\u7684\u5e76\u53d1\u8bf7\u6c42\uff0c\u6240\u4ee5\u4e34\u65f6\u53c8\u52a0\u4e86\u5f88\u591a\u7684\u8fde\u63a5\uff0c\u4f46\u8fd9\u4e34\u65f6\u7684\u8fde\u63a5\u662f\u77ed\u8fde\u63a5\u548c\u957f\u8fde\u63a5\u8981\u770b\u4f60\u7684nginx\u7248\u672c\uff0c\u6211\u8fd91.8\u662f\u957f\u8fde\u63a5\uff0c\u90a3\u4ed6\u5982\u4f55\u88ab\u6536\u56de\uff0c\u4e24\u5730\u4fdd\u8bc1\uff0c\u4e00\u70b9\u662f\u4ed6\u4f1a\u4e3b\u52a8\u53bb\u91ca\u653e\uff0c\u53e6\u4e00\u70b9\u662fkeepalive timeout\u7684\u65f6\u95f4\u3002<\/p>\n

<\/div>\n

\"\"<\/p>\n

Golang\u7684http\u6a21\u5757\u8c8c\u4f3c\u5bf9http spdy\u652f\u6301\u4e0d\u600e\u4e48\u597d\uff0c \u8981\u4e0d\u7136\u53ef\u4ee5\u76f4\u63a5\u7528\u6dd8\u5b9d\u7684tengine upstream spdy\u7684\u65b9\u5f0f\u8fde\u63a5\u540e\u7aefServer\u3002 \u4ed6\u7684\u901f\u5ea6\u8981\u6bd4keepalive\u8981\u597d\u7684\u591a\uff0c\u6bd5\u7adf\u7701\u53bb\u4e86\u7b49\u5f85\u4e0a\u6b21\u8fd4\u56de\u7684\u7ed3\u679c\u7684\u8fc7\u7a0b\u3002<\/p>\n

 <\/p>\n

\u539f\u6587\u5730\u5740\uff1a<\/p>\n

http:\/\/xiaorui.cc\/2016\/06\/26\/%e8%ae%b0%e4%b8%80%e6%ac%a1%e5%8e%8b%e6%b5%8b%e5%bc%95%e8%b5%b7%e7%9a%84nginx%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u8fd9\u8fb9\u6709\u4e2a\u6027\u80fd\u8981\u6c42\u6781\u9ad8\u7684api\u8981\u4e0a\u7ebf\uff0c\u8fd9\u4e2a\u670d\u52a1\u7aef\u662fgolang http\u6a21\u5757\u5b9e\u73b0\u7684\u3002\u5728\u4e0a\u7ebf\u4e4b\u524d\u6211\u4eec\u7406\u6240\u5f53\u7136\u7684\u8981\u505a\u538b\u529b\u6d4b\u8bd5\u3002\u8d77\u521d\u662f \u201c\u5c0f\u767d\u540c\u5b66\u201d \u8d77\u5934\u8fdb\u884c\u538b\u529b\u6d4b\u8bd5\uff0c\u4f46\u5f53\u6211\u770b\u5230\u90a3\u538b\u529b\u6d4b\u8bd5\u7684\u7ed3\u679c\u65f6\uff0c\u6211\u4e5f\u662f\u9017\u4e50\u4e86\u3002 \u00a0 \u73b0\u8c61\u662f\uff0c\u76f4\u63a5\u8bbf\u95eeGolang http api\u662f\u6bcf\u79d2\u53ef\u4ee5\u52303.5W\u7684\u8bbf\u95ee, \u00a0\u4e3a\u4e86\u7406\u8bba\u627f\u53d7\u66f4\u5f3a\u7684QPS\uff0c\u591a\u5f00\u4e86\u51e0\u4e2ago http api\u8fdb\u7a0b\u7aef\u53e3\uff0c\u53c8\u5728\u8fd9\u524d\u9762\u52a0\u4e86\u5c42nginx\u8d1f\u8f7d\u5747\u8861\uff0c\u7ed3\u679c\u5f80nginx\u538b\u6d4b\u7684\u7ed3\u679c\u662f\u6bcf\u79d2\u624d\u53ef\u4ee5\u89e3\u51b31.5w\u7684\u8bbf\u95ee\u91cf\u3002 \u8fd9\u7ed3\u679c\u8ba9\u9ad8\u7ea7\u9ed1 \u201c\u5c0f\u767d\u201d \u628anginx\u53c8\u7ed9\u9119\u89c6\u4e86\u3002 \u867d\u7136\u54e5\u5e73\u65f6\u5f00\u53d1\u4efb\u52a1\u5f88\u9971\u548c\uff0c\u53c8\u56e0\u4e3a\u5e26\u51e0\u4e2a\u65b0\u4eba\u7684\u539f\u56e0\uff0c\u6709\u70b9\u5fc3\u7d2f\u3002 \u4f46\u54e5\u8fd8\u662f\u62bd\u51fa\u5b9d\u8d35\u7684\u65f6\u95f4\u6765\u89e3\u51b3nginx\u5728\u538b\u529b\u6d4b\u8bd5\u4e0b\u6027\u80fd\u4e0a\u4e0d\u53bb\u7684\u95ee\u9898\u3002 \u54c8\u54c8\uff0c\u8fd9\u91cc\u80af\u5b9a\u6709\u4eba\u8981\u6253\u6211\u4e86\u3002 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