{"id":32214,"date":"2023-02-24T09:35:26","date_gmt":"2023-06-24T05:02:58","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e6%9e%9c%e4%bd%a0%e6%83%b3%e8%a6%81%e4%bb%8enode-js%e5%90%91http%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%8f%91%e9%80%81%e9%80%9a%e4%bf%a1%ef%bc%8c%e5%8f%af%e4%bb%a5%e4%bd%bf%e7%94%a8connectionpool\/"},"modified":"2024-04-29T16:01:46","modified_gmt":"2024-04-29T08:01:46","slug":"%e5%a6%82%e6%9e%9c%e4%bd%a0%e6%83%b3%e8%a6%81%e4%bb%8enode-js%e5%90%91http%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%8f%91%e9%80%81%e9%80%9a%e4%bf%a1%ef%bc%8c%e5%8f%af%e4%bb%a5%e4%bd%bf%e7%94%a8connectionpool","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e6%9e%9c%e4%bd%a0%e6%83%b3%e8%a6%81%e4%bb%8enode-js%e5%90%91http%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%8f%91%e9%80%81%e9%80%9a%e4%bf%a1%ef%bc%8c%e5%8f%af%e4%bb%a5%e4%bd%bf%e7%94%a8connectionpool\/","title":{"rendered":"\u5982\u679c\u4f60\u60f3\u8981\u4eceNode.js\u5411HTTP\u670d\u52a1\u5668\u53d1\u9001\u901a\u4fe1\uff0c\u53ef\u4ee5\u4f7f\u7528ConnectionPool"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u6700\u8fd1\u6211\u5076\u5c14\u4f7f\u7528Node.js\uff0c\u5e76\u4e14\u50cf\u4e0b\u56fe(\u203b\uff11)\u6240\u793a\uff0c\u5f53Node.js\u7684Web\u670d\u52a1\u5668\u901a\u8fc7HTTP\u8bbf\u95ee\u5916\u90e8\u7684API\u670d\u52a1\u5668\u65f6\uff0c\u542f\u7528\u8fde\u63a5\u6c60\u4f1a\u6539\u5584\u5ef6\u8fdf\u548c\u541e\u5410\u91cf\uff0c\u5efa\u8bae\u8003\u8651\u4e00\u4e0b\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u9002\u7528\u4e8eNode.js\uff0c\u800c\u4e14\u975e\u5e38\u5bb9\u6613\u5b9e\u73b0(\u53ef\u80fd)\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\u30d5\u309a\u30ec\u30bb\u3099\u30f3\u30c6\u30fc\u30b7\u30e7\u30f31.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d108b37434c4406bf1443\/2-0.png\" alt=\"\u30d5\u309a\u30ec\u30bb\u3099\u30f3\u30c6\u30fc\u30b7\u30e7\u30f31.png\" \/><\/div>\n<h2>\u7248\u672c<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">nodejs: v4.2.3<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">npm<\/ul>\n<\/li>\n<\/ul>\n<p>request: 2.67.0<br \/>\nrequest-promise: 1.0.2<\/p>\n<h1>ConnectionPool\u7684\u65b9\u6cd5<\/h1>\n<p>\u770b\u8d77\u6765\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4f9b\u9009\u62e9\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u8bf7\u4f7f\u7528 NPM \u7684 forever<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u4f7f\u7528 nodejs \u7684 http \u6a21\u5757\u4e2d\u63d0\u4f9b\u7684\u529f\u80fd<\/ol>\n<h2>\u8bf7\u4f7f\u7528 NPM \u7684 forever \u670d\u52a1<\/h2>\n<p>\u6709\u4e00\u4e2a\u540d\u4e3a &#8220;request-promise&#8221; \u7684 NPM\uff0c\u5b83\u4f7f\u7528\u4e86 NPM \u91cc\u7684 &#8220;request&#8221;\u3002<\/p>\n<p>\u4e3e\u4f8b\u6765\u8bf4\uff0c\u53ef\u4ee5\u5728 Express \u4e2d\u4ee5\u4ee5\u4e0b\u65b9\u5f0f\u4f7f\u7528\u3002\u8fd9\u4e2a\u4f8b\u5b50\u662f\u5728 GET \/spike \u7684\u60c5\u51b5\u4e0b\u8bbf\u95ee https:\/\/example.com\/ \u5e76\u8fd4\u56de\u5176\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">rp<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">request-promise<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"nx\">app<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/spike<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">rp<\/span><span class=\"p\">({<\/span><span class=\"na\">url<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">https:\/\/example.com<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"na\">forever<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">}).<\/span><span class=\"nx\">then<\/span><span class=\"p\">((<\/span><span class=\"nx\">body<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">send<\/span><span class=\"p\">(<\/span><span class=\"nx\">body<\/span><span class=\"p\">));<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u4f7f\u7528 ab \u7b49\u5de5\u5177\u5bf9\u5176\u8fdb\u884c\u57fa\u51c6\u6d4b\u8bd5\uff0c\u6dfb\u52a0 forever: true \u548c\u4e0d\u6dfb\u52a0 forever: true \u5c06\u5bf9\u6027\u80fd\u4ea7\u751f\u663e\u8457\u5f71\u54cd\u3002\uff08\u6ce8\u610f\uff1a\u8bf7\u52ff\u771f\u5b9e\u8bbf\u95ee example.com \u4ee5\u907f\u514d\u5bf9\u5176\u9020\u6210\u56f0\u6270\uff09<\/p>\n<h3>\u786e\u8ba4\u8fde\u63a5\u6c60\u662f\u5426\u5df2\u8bbe\u7f6e<\/h3>\n<pre class=\"post-pre\"><code>netstat -nt | grep -c &lt;target ip&gt;:&lt;443 or 80&gt;\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4e9b\u5730\u65b9\u53ef\u4ee5\u67e5\u770b\u4e0e\u76ee\u6807IP\u7684TCP\u8fde\u63a5\u72b6\u6001\uff08\u6570\u91cf\uff09\u3002<br \/>\n\u5f53\u6ca1\u6709\u8fdb\u884c\u8fde\u63a5\u6c60\u65f6\uff0c\u8fd9\u4e2a\u6570\u91cf\u4f1a\u968f\u7740\u65f6\u95f4\u589e\u52a0\u3002\u6b64\u5916\uff0c\u4f1a\u663e\u793a\u5927\u91cf\u5df2\u7ed3\u675f\u8fde\u63a5\u7684Connection\u7684TIME_WAIT\u72b6\u6001\u3002<\/p>\n<p>\u5f53\u4f7f\u7528 ConnectionPool \u65f6\uff0c\u8fde\u63a5\u6570\u5927\u7ea6\u4f1a\u4fdd\u6301\u5728\u5e76\u884c\u6570\u7684\u8303\u56f4\u5185\u3002\u53ef\u4ee5\u770b\u5230\u5904\u4e8e ESTABLISHED \u72b6\u6001\u7684\u8fde\u63a5\u3002<\/p>\n<h3>\u8fd9\u6709\u591a\u5927\u7684\u6548\u679c\uff1f<\/h3>\n<p>\u53ea\u662f\u4f5c\u4e3a\u53c2\u8003\uff0c\u4ece\u5927\u7ea6\u6bcf\u79d2200\u4e2a\u8bf7\u6c42\u589e\u52a0\u5230\u5927\u7ea6\u6bcf\u79d2900\u4e2a\u8bf7\u6c42\u3002<br \/>\n\u8fd9\u53d6\u51b3\u4e8e\u5efa\u7acb\u65b0\u8fde\u63a5\u7684\u6210\u672c\u6709\u591a\u9ad8\u3002<\/p>\n<h2>\u5229\u7528 Node.js \u7684 http \u6a21\u5757\u6240\u5177\u5907\u7684\u529f\u80fd\u3002<\/h2>\n<p>\u603b\u7684\u6765\u8bf4\uff0c\u6211\u6ca1\u6709\u597d\u597d\u5c1d\u8bd5\u8fc7\u3002<\/p>\n<p>\u5373\u4f7f\u5728\u8bf7\u6c42\u7684 npm \u4e0a\u9ed8\u8ba4\u4f7f\u7528\u4e86\u8fd9\u4e2a\u9009\u9879\uff0c\u4f46\u5f53\u6211\u5c1d\u8bd5\u65f6\u5374\u6ca1\u6709\u6548\u679c\u3002<\/p>\n<p>\u4e5f\u8bb8\u76f4\u63a5\u4f7f\u7528\u81ea\u5e26\u7684http\u6a21\u5757\u53ef\u4ee5\u6709\u6548\u5730\u5de5\u4f5c\u3002\u7528\u8fd9\u79cd\u65b9\u5f0f\u6765\u4f7f\u7528\u4f3c\u4e4e\u662f\u5408\u9002\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">var<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">var<\/span> <span class=\"nx\">keepAliveAgent<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">Agent<\/span><span class=\"p\">({<\/span> <span class=\"na\">keepAlive<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span> <span class=\"p\">});<\/span>\r\n<span class=\"nx\">options<\/span><span class=\"p\">.<\/span><span class=\"nx\">agent<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">keepAliveAgent<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">request<\/span><span class=\"p\">(<\/span><span class=\"nx\">options<\/span><span class=\"p\">,<\/span> <span class=\"nx\">onResponseCallback<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<h1>\u6700\u540e<\/h1>\n<p>\u6700\u8fd1\uff0c\u5fae\u670d\u52a1\u4e4b\u95f4\u7684\u8fd9\u79cd\u534f\u4f5c\u8d8a\u6765\u8d8a\u591a\u3002\u8c03\u6574API\u670d\u52a1\u5668\u7aef\u7684keep-alive\u548c\u8fde\u63a5\u6c60\u53ef\u4ee5\u5728\u6027\u80fd\u4e0a\u505a\u51fa\u6539\u5584\uff0c\u6240\u4ee5\u6211\u8ba4\u4e3a\u503c\u5f97\u8003\u8651\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u6700\u8fd1\u6211\u5076\u5c14\u4f7f\u7528Node.js\uff0c\u5e76\u4e14\u50cf\u4e0b\u56fe(\u203b\uff11)\u6240\u793a\uff0c\u5f53Node.js\u7684Web\u670d\u52a1\u5668\u901a\u8fc7HTTP\u8bbf\u95ee\u5916\u90e8 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-32214","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- 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\u6700\u8fd1\u6211\u5076\u5c14\u4f7f\u7528Node.js\uff0c\u5e76\u4e14\u50cf\u4e0b\u56fe(\u203b\uff11)\u6240\u793a\uff0c\u5f53Node.js\u7684Web\u670d\u52a1\u5668\u901a\u8fc7HTTP\u8bbf\u95ee\u5916\u90e8 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5982\u679c\u4f60\u60f3\u8981\u4ecenode-js\u5411http\u670d\u52a1\u5668\u53d1\u9001\u901a\u4fe1\uff0c\u53ef\u4ee5\u4f7f\u7528connectionpool\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-24T05:02:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-29T08:01:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d108b37434c4406bf1443\/2-0.png\" \/>\n<meta name=\"author\" content=\"\u6e05, \u5b87\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta 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