{"id":82894,"date":"2026-07-25T14:10:24","date_gmt":"2026-07-25T06:10:24","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/82894.html"},"modified":"2026-07-25T14:10:24","modified_gmt":"2026-07-25T06:10:24","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%81%87%e6%ad%bb%e5%a4%8d%e7%9b%98%ef%bc%9a%e4%b8%80%e4%b8%aa%e5%b0%8f%e5%b0%8f%e7%9a%84-fs-file-max-%e5%a6%82%e4%bd%95%e5%87%bb%e5%9e%ae-js-%e5%8f%8d","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/82894.html","title":{"rendered":"\u670d\u52a1\u5668\u201c\u5047\u6b7b\u201d\u590d\u76d8\uff1a\u4e00\u4e2a\u5c0f\u5c0f\u7684 fs.file-max \u5982\u4f55\u51fb\u57ae JS \u53cd\u722c\u7cfb\u7edf"},"content":{"rendered":"<h3>1. \u6545\u969c\u73b0\u8c61<\/h3>\n<ul>\n<li>\u573a\u666f&#xff1a;\u6700\u8fd1\u4e0a\u7ebf\u4e86\u4e00\u4e2a\u5305\u542b JS \u53cd\u722c&#xff08;Cookie \u9a8c\u8bc1&#xff09;\u7684\u65b0\u7248\u672c\u3002<\/li>\n<li>\u75c7\u72b6&#xff1a;\u53d1\u7248\u540e\u670d\u52a1\u5668\u9891\u7e41\u201c\u6302\u6389\u201d&#xff0c;\u8868\u73b0\u4e3a SSH \u65e0\u6cd5\u767b\u5f55\u3001\u7f51\u7ad9\u65e0\u6cd5\u8bbf\u95ee&#xff08;Nginx 502\/503 \u6216\u76f4\u63a5\u8d85\u65f6&#xff09;\u3002<\/li>\n<li>\u8be1\u5f02\u70b9&#xff1a;\u76d1\u63a7\u663e\u793a\u670d\u52a1\u5668\u7684 CPU \u548c\u5185\u5b58\u8d1f\u8f7d\u5e76\u4e0d\u9ad8&#xff0c;\u901a\u8fc7\u63a7\u5236\u53f0\u5f3a\u5236\u91cd\u542f\u540e\u6062\u590d&#xff0c;\u4f46\u8fc7\u4e00\u6bb5\u65f6\u95f4\u53c8\u590d\u73b0\u3002<\/li>\n<li>\u914d\u7f6e&#xff1a;\u670d\u52a1\u5668\u4e3a 2\u6838 4G \u89c4\u683c\u3002<\/li>\n<\/ul>\n<h3>2. \u6392\u67e5\u8fc7\u7a0b<\/h3>\n<h4>\u7b2c\u4e00\u6b65&#xff1a;\u5e38\u89c4\u8bca\u65ad<\/h4>\n<p>\u4f7f\u7528 top\u3001free \u67e5\u770b\u8d44\u6e90&#xff0c;\u53d1\u73b0 CPU \u4ec5 10%&#xff0c;\u5185\u5b58\u5269\u4f59\u4e5f\u5145\u8db3\u3002\u5e76\u6ca1\u6709\u53d1\u751f\u5185\u5b58\u6ea2\u51fa&#xff08;OOM&#xff09;\u6216 CPU \u8dd1\u6ee1\u7684\u60c5\u51b5\u3002<\/p>\n<h4>\u7b2c\u4e8c\u6b65&#xff1a;\u65e5\u5fd7\u5206\u6790<\/h4>\n<p>\u68c0\u67e5 \/var\/log\/syslog \u548c dmesg&#xff0c;\u53d1\u73b0\u4e86\u5173\u952e\u62a5\u9519&#xff1a;<\/p>\n<p>Jan 28 00:00:02 ip-xxx logrotate[129511]: error: unable to open &#8230;: Too many open files in system<\/p>\n<p>\u540c\u65f6&#xff0c;Nginx \u7684 error.log \u4e2d\u51fa\u73b0\u5927\u91cf&#xff1a;<\/p>\n<p>connect() failed (111: Unknown error) while connecting to upstream<\/p>\n<p>\u6ce8\u610f&#xff1a;\u8fd9\u91cc\u7684 Too many open files in system \u662f\u6307\u6574\u4e2a\u7cfb\u7edf\u7684\u6587\u4ef6\u6253\u5f00\u6570\u8fbe\u5230\u4e86\u4e0a\u9650&#xff0c;\u800c\u4e0d\u662f\u67d0\u4e2a\u8fdb\u7a0b\u8fbe\u5230\u4e86\u4e0a\u9650\u3002<\/p>\n<h4>\u7b2c\u4e09\u6b65&#xff1a;\u68c0\u67e5\u914d\u7f6e<\/h4>\n<p>\u6267\u884c sysctl fs.file-max \u67e5\u770b\u7cfb\u7edf\u7ea7\u9650\u5236&#xff1a;<\/p>\n<p>$ <span class=\"token function\">cat<\/span> \/proc\/sys\/fs\/file-nr<br \/>\n<span class=\"token number\">5120<\/span>    <span class=\"token number\">0<\/span>    <span class=\"token number\">5120<\/span><\/p>\n<p>\u60ca\u4eba\u53d1\u73b0&#xff1a;\u7cfb\u7edf\u5168\u5c40\u5141\u8bb8\u6253\u5f00\u7684\u6700\u5927\u6587\u4ef6\u53e5\u67c4\u6570&#xff08;fs.file-max&#xff09;\u7adf\u7136\u88ab\u8bbe\u7f6e\u6210\u4e86 5120\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e00\u53f0\u8fd0\u884c\u4e86 MySQL\u3001Nginx\u3001Go\u5e94\u7528\u4ee5\u53ca\u5404\u79cd\u76d1\u63a7\u7ec4\u4ef6&#xff08;\u5982\u963f\u91cc\u4e91\u76fe&#xff09;\u7684\u670d\u52a1\u5668\u6765\u8bf4&#xff0c;5120 \u7b80\u76f4\u662f\u201c\u676f\u6c34\u8f66\u85aa\u201d\u3002\u4ec5 MySQL \u548c\u963f\u91cc\u4e91\u76fe\u901a\u5e38\u5c31\u80fd\u6d88\u8017\u6389 4000&#043; \u4e2a\u53e5\u67c4\u3002<\/p>\n<h3>3. \u6839\u56e0\u5206\u6790&#xff1a;\u4e3a\u4f55\u53d1\u7248 JS \u53cd\u722c\u540e\u624d\u70b8&#xff1f;<\/h3>\n<p>\u4e3a\u4ec0\u4e48\u4e4b\u524d\u6ca1\u4e8b&#xff0c;\u53d1\u4e86 JS \u53cd\u722c\u7248\u5c31\u6302\u4e86&#xff1f;\u8fd9\u5c31\u6d89\u53ca\u5230\u4e86 \u201c\u8fde\u63a5\u653e\u5927\u6548\u5e94\u201d\u3002<\/p>\n<li>\u65e7\u7248\u672c&#xff1a;\u7528\u6237\u8bf7\u6c42 -&gt; \u8fd4\u56de\u9875\u9762\u3002\u6d88\u8017 1 \u4e2a TCP \u8fde\u63a5\u3002<\/li>\n<li>\u65b0\u7248\u672c&#xff08;JS\u53cd\u722c&#xff09;&#xff1a;\n<ul>\n<li>\u7528\u6237\u8bf7\u6c42 -&gt; \u8fd4\u56de JS \u9a8c\u8bc1\u9875\u3002<\/li>\n<li>\u6d4f\u89c8\u5668\u6267\u884c JS -&gt; \u5199\u5165 Cookie -&gt; \u81ea\u52a8\u5237\u65b0\u9875\u9762\u3002<\/li>\n<li>\u670d\u52a1\u5668\u9a8c\u8bc1 Cookie -&gt; \u8fd4\u56de\u771f\u9875\u9762\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u6d41\u91cf\u7ffb\u500d&#xff1a;\u8fd9\u79cd\u673a\u5236\u5f3a\u8feb\u6bcf\u4e2a\u771f\u5b9e\u7528\u6237\u81f3\u5c11\u53d1\u8d77 2\u6b21 \u8bf7\u6c42\u3002<\/li>\n<li>TIME_WAIT \u5806\u79ef&#xff1a;\n<ul>\n<li>\u77ed\u65f6\u95f4\u5185\u5efa\u7acb\u548c\u65ad\u5f00\u5927\u91cf TCP \u8fde\u63a5&#xff0c;\u4f1a\u4ea7\u751f\u5927\u91cf\u5904\u4e8e TIME_WAIT \u72b6\u6001\u7684 socket\u3002<\/li>\n<li>\u5728 Linux \u4e2d&#xff0c;socket \u4e5f\u5360\u7528\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u51fb\u7a7f\u6c34\u4f4d&#xff1a;\n<ul>\n<li>\u7cfb\u7edf\u672c\u8eab\u5df2\u5360\u7528\u7ea6 4500 \u4e2a\u53e5\u67c4&#xff08;MySQL &#043; \u4e91\u76fe\u7b49&#xff09;\u3002<\/li>\n<li>\u5269\u4f59\u53ef\u7528\u53e5\u67c4\u4ec5\u51e0\u767e\u4e2a\u3002<\/li>\n<li>JS \u53cd\u722c\u5e26\u6765\u7684\u6d41\u91cf\u7ffb\u500d\u548c TIME_WAIT \u77ac\u95f4\u5403\u5149\u4e86\u8fd9\u51e0\u767e\u4e2a\u5269\u4f59\u914d\u989d\u3002<\/li>\n<li>\u7ed3\u679c&#xff1a;\u7cfb\u7edf\u65e0\u6cd5\u5efa\u7acb\u65b0\u8fde\u63a5&#xff0c;\u65e0\u6cd5\u5199\u65e5\u5fd7&#xff0c;SSH \u751a\u81f3\u65e0\u6cd5 fork \u65b0\u8fdb\u7a0b&#xff08;\u56e0\u4e3a\u9700\u8981\u6253\u5f00\u5e93\u6587\u4ef6&#xff09;&#xff0c;\u670d\u52a1\u5668\u5f7b\u5e95\u201c\u5047\u6b7b\u201d\u3002<\/li>\n<\/ul>\n<\/li>\n<h3>4. \u8bef\u533a\u6f84\u6e05<\/h3>\n<p>\u201c\u6211\u4e4b\u524d\u914d\u7f6e\u8fc7 65536&#xff0c;\u4e3a\u4ec0\u4e48\u4e0d\u751f\u6548&#xff1f;\u201d<\/p>\n<p>\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u7ecf\u5178\u7684 Linux \u8fd0\u7ef4\u8bef\u533a\u3002Linux \u6709\u4e24\u5c42\u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236&#xff1a;<\/p>\n<li>\n<p>\u8fdb\u7a0b\u7ea7\/\u7528\u6237\u7ea7\u9650\u5236 (ulimit -n \/ \/etc\/security\/limits.conf)&#xff1a;<\/p>\n<ul>\n<li>\u9650\u5236\u5355\u4e2a\u7528\u6237\u6216\u5355\u4e2a\u8fdb\u7a0b\u80fd\u6253\u5f00\u591a\u5c11\u6587\u4ef6\u3002<\/li>\n<li>\u4f60\u914d\u7f6e\u7684 65536 \u751f\u6548\u4e86&#xff0c;\u4f46\u5b83\u53d7\u9650\u4e8e\u7cfb\u7edf\u7684\u603b\u4e0a\u9650\u3002<\/li>\n<li>\u6bd4\u55bb&#xff1a;\u94f6\u884c\u9650\u5236\u4f60\u6b64\u5361\u5355\u65e5\u9650\u989d 6\u4e07\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7cfb\u7edf\u7ea7\u603b\u9650\u5236 (fs.file-max \/ \/etc\/sysctl.conf)&#xff1a;<\/p>\n<ul>\n<li>\u9650\u5236\u6574\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u6240\u6709\u8fdb\u7a0b\u52a0\u8d77\u6765\u80fd\u6253\u5f00\u591a\u5c11\u6587\u4ef6\u3002<\/li>\n<li>\u6211\u4eec\u9047\u5230\u7684\u95ee\u9898\u662f\u8fd9\u4e2a\u503c\u88ab\u8bbe\u4e3a\u4e86 5120\u3002<\/li>\n<li>\u6bd4\u55bb&#xff1a;\u94f6\u884c\u91d1\u5e93\u91cc\u603b\u5171\u53ea\u6709 5000 \u5757\u94b1\u3002<\/li>\n<\/ul>\n<\/li>\n<p>\u7ed3\u8bba&#xff1a;\u5f53\u91d1\u5e93&#xff08;\u7cfb\u7edf\u603b\u4e0a\u9650&#xff09;\u6ca1\u94b1\u65f6&#xff0c;\u4f60\u7684\u5361\u9650\u989d&#xff08;\u8fdb\u7a0b\u9650\u5236&#xff09;\u518d\u9ad8\u4e5f\u53d6\u4e0d\u51fa\u94b1\u6765\u3002<\/p>\n<h3>5. \u89e3\u51b3\u65b9\u6848<\/h3>\n<p>\u4fee\u6539\u7cfb\u7edf\u5185\u6838\u53c2\u6570&#xff0c;\u5927\u5e45\u63d0\u5347\u603b\u4e0a\u9650\u3002\u5bf9\u4e8e 4G \u5185\u5b58\u7684\u670d\u52a1\u5668&#xff0c;100\u4e07\u662f\u5b89\u5168\u7684\u3002<\/p>\n<p><span class=\"token comment\"># 1. \u4fee\u6539\u914d\u7f6e\u6587\u4ef6<\/span><br \/>\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;fs.file-max &#061; 1000000&#034;<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">sudo<\/span> <span class=\"token function\">tee<\/span> -a \/etc\/sysctl.conf<\/p>\n<p><span class=\"token comment\"># 2. \u7acb\u5373\u751f\u6548<\/span><br \/>\n<span class=\"token function\">sudo<\/span> sysctl -p<\/p>\n<p><span class=\"token comment\"># 3. \u9a8c\u8bc1<\/span><br \/>\n<span class=\"token function\">cat<\/span> \/proc\/sys\/fs\/file-nr<\/p>\n<h3>6. \u907f\u5751\u6307\u5357<\/h3>\n<li>\u7cfb\u7edf\u521d\u59cb\u5316\u68c0\u67e5&#xff1a;\u65b0\u670d\u52a1\u5668\u5230\u624b&#xff0c;\u52a1\u5fc5\u68c0\u67e5 fs.file-max\u3002\u4e0d\u8981\u53ea\u770b ulimit -n\u3002<\/li>\n<li>\u53cd\u722c\u7cfb\u7edf\u7684\u4ee3\u4ef7&#xff1a;\u5f15\u5165 JS \u9a8c\u8bc1\u3001\u91cd\u5b9a\u5411\u7b49\u673a\u5236&#xff0c;\u4f1a\u6210\u500d\u589e\u52a0\u8fde\u63a5\u6570\u548c\u5e76\u53d1\u538b\u529b&#xff0c;\u8bc4\u4f30\u5bb9\u91cf\u65f6\u9700\u8981\u8003\u8651\u5230\u8fd9\u4e00\u70b9&#xff08;\u7279\u522b\u662f TIME_WAIT \u7684\u5f71\u54cd&#xff09;\u3002<\/li>\n<li>\u76d1\u63a7\u76f2\u533a&#xff1a;CPU \u548c\u5185\u5b58\u4f4e\u4e0d\u4ee3\u8868\u670d\u52a1\u5668\u5065\u5eb7&#xff0c;\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff08;FD&#xff09;\u4f7f\u7528\u7387\u662f\u4e00\u4e2a\u5173\u952e\u4f46\u5e38\u88ab\u5ffd\u89c6\u7684\u76d1\u63a7\u6307\u6807\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"<p>1. \u6545\u969c\u73b0\u8c61<br \/>\n\u573a\u666f&#xff1a;\u6700\u8fd1\u4e0a\u7ebf\u4e86\u4e00\u4e2a\u5305\u542b JS \u53cd\u722c&#xff08;Cookie \u9a8c\u8bc1&#xff09;\u7684\u65b0\u7248\u672c\u3002\u75c7\u72b6&#xff1a;\u53d1\u7248\u540e\u670d\u52a1\u5668\u9891\u7e41\u201c\u6302\u6389\u201d&#xff0c;\u8868\u73b0\u4e3a SSH \u65e0\u6cd5\u767b\u5f55\u3001\u7f51\u7ad9\u65e0\u6cd5\u8bbf\u95ee&#xff08;Nginx 502\/503 \u6216\u76f4\u63a5\u8d85\u65f6&#xff09;\u3002\u8be1\u5f02\u70b9&#xff1a;\u76d1\u63a7\u663e\u793a\u670d\u52a1\u5668\u7684 CPU \u548c\u5185\u5b58\u8d1f\u8f7d\u5e76\u4e0d\u9ad8&#xff0c;\u901a\u8fc7\u63a7\u5236\u53f0\u5f3a\u5236\u91cd\u542f\u540e\u6062\u590d&#xff0c;\u4f46\u8fc7\u4e00\u6bb5\u65f6\u95f4\u53c8\u590d\u73b0\u3002\u914d\u7f6e&#xff1a;\u670d\u52a1\u5668\u4e3a 2\u6838 4G \u89c4<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[187,43,44],"topic":[],"class_list":["post-82894","post","type-post","status-publish","format-standard","hentry","category-server","tag-javascript","tag-43","tag-44"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u670d\u52a1\u5668\u201c\u5047\u6b7b\u201d\u590d\u76d8\uff1a\u4e00\u4e2a\u5c0f\u5c0f\u7684 fs.file-max \u5982\u4f55\u51fb\u57ae JS \u53cd\u722c\u7cfb\u7edf - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/82894.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" 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