{"id":52,"date":"2023-03-06T15:07:26","date_gmt":"2023-03-06T07:07:26","guid":{"rendered":"http:\/\/www.beijingqingnian.com\/?p=52"},"modified":"2023-03-06T15:30:00","modified_gmt":"2023-03-06T07:30:00","slug":"52","status":"publish","type":"post","link":"https:\/\/www.beijingqingnian.com\/index.php\/2023\/03\/06\/52\/","title":{"rendered":"<code>CPU<\/code>\u4f18\u5316"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u6765\u4ecb\u7ecd\u5e38\u7528\u7684\u4f18\u5316\u63aa\u65bd\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/img1.sycdn.imooc.com\/5e587c990001573d17501070.png\" alt=\"\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"cpu\u4f18\u5316\"><code>CPU<\/code>\u4f18\u5316<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539<code>Nginx<\/code>\u4e2d<code>CPU<\/code>\u76f8\u5173\u6307\u4ee4\u6765\u63d0\u5347\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002<br>\u8fd9\u91cc\u4e3b\u8981\u6d89\u53ca\u5230\u4e24\u4e2a\u6307\u4ee4\uff0c\u5206\u522b\u662f<code>worker_processes<\/code>\u548c<code>worker_cpu_affinity<\/code>\u6307\u4ee4\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"worker_processes\u6307\u4ee4\"><code>worker_processes<\/code>\u6307\u4ee4<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u6307\u4ee4\u7528\u6765\u8bbe\u7f6e<code>Nginx<\/code>\u7684<code>worker<\/code>\u8fdb\u7a0b\u6570\u91cf\u3002\u6211\u4eec\u5728\u672c\u7cfb\u5217\u6587\u7ae0\u7684\u5f00\u59cb\u65f6\u5019\u5c31\u4ecb\u7ecd\u8fc7\uff0c<code>Nginx<\/code>\u662f\u4e00\u79cd<code>Master-Worker<\/code>\u673a\u5236\uff0c\u771f\u6b63\u5e72\u6d3b\u7684\u662f<code>worker<\/code>\u8fdb\u7a0b\uff0c\u6240\u4ee5\u9002\u5f53\u7684\u63d0\u9ad8<code>worker<\/code>\u8fdb\u7a0b\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u5904\u7406\u8bf7\u6c42\u7684\u901f\u5ea6\u3002\u4f46\u662f<code>worker<\/code>\u8fdb\u7a0b\u7684\u6570\u91cf\u4e5f\u4e0d\u662f\u8d8a\u591a\u8d8a\u597d\uff0c<code>worker<\/code>\u8fdb\u7a0b\u6570\u91cf\u592a\u591a\u7684\u8bdd\u4f1a\u589e\u52a0<code>CPU<\/code>\u5207\u6362\u8fdb\u7a0b\u7684\u8d1f\u62c5\uff0c\u4e00\u822c\u5efa\u8bae\u8bbe\u7f6e\u4e3a\u548c\u5f53\u524d\u670d\u52a1\u5668\u6838\u5fc3\u6570\u91cf\u76f8\u540c\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"worker_cpu_affinity\u6307\u4ee4\"><code>worker_cpu_affinity<\/code>\u6307\u4ee4<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u5148\u770b\u4e00\u4e0b<code>affinity<\/code>\u7684\u610f\u601d\u662f<code>\u4eb2\u548c\u529b<\/code>\u3002\u90a3\u4e48<code>cpu_affinity<\/code>\u5c31\u662f<code>cpu\u4eb2\u548c\u529b<\/code>\u3002\u90a3\u4e48\u4ec0\u4e48\u662f<code>cpu\u4eb2\u548c\u529b<\/code>\u5462\uff1f<br>\u8fd9\u4e2a\u6982\u5ff5\u662f\u5bf9\u4e8e\u8fdb\u7a0b\u6765\u8bf4\u7684\u3002\u6211\u4eec\u77e5\u9053\uff0c\u5728\u73b0\u4ee3\u7684\u591a\u6838\u5904\u7406\u5668\u4e0a\u9762\uff0c<code>OS<\/code>\u5728\u591a\u6b21\u8c03\u5ea6\u540c\u4e00\u4e2a\u8fdb\u7a0b\u7684\u65f6\u5019\uff0c\u53ef\u80fd\u5c06\u8fdb\u7a0b\u5206\u914d\u5230\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u9762\u8fdb\u884c\u5904\u7406\uff0c\u8fd9\u6837\u5c31\u53ef\u80fd\u5bfc\u81f4\u8fdb\u7a0b\u7684\u7f13\u5b58\u4e0d\u53ef\u7528\uff0c\u4f1a\u589e\u52a0\u8fdb\u7a0b\u6267\u884c\u7684\u65f6\u95f4\u3002\u6240\u4ee5\u5c31\u4ea7\u751f\u4e86<code>cpu\u4eb2\u548c\u529b<\/code>\u8fd9\u4e2a\u4e1c\u897f\uff0c\u8fd9\u4e2a\u529f\u80fd\u53ef\u4ee5\u628a\u4e00\u4e2a\u8fdb\u7a0b\u548c\u4e00\u4e2a\u5904\u7406\u6838\u7ed1\u5b9a\u5728\u4e00\u8d77\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5145\u5206\u5229\u7528<code>CPU<\/code>\u7684\u7f13\u5b58\uff0c\u63d0\u9ad8\u7f13\u5b58\u547d\u4e2d\u7387\uff0c\u52a0\u5feb\u8fdb\u7a0b\u7684\u6267\u884c\u901f\u5ea6\u3002<br>\u5b83\u7684\u503c\u662f\u4e00\u4e2a\u4e8c\u8fdb\u5236\uff0c\u5bf9\u5e94\u7269\u7406\u6838\u5fc3\u6570\u91cf\uff0c\u7f6e<code>1<\/code>\u7684\u90a3\u4e00\u4f4d\u8868\u793a\u7ed1\u5b9a\u5230\u8be5\u7269\u7406\u6838\u3002<br><code>worker_cpu_affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000<\/code><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u7f13\u5b58\u63a7\u5236\">\u7f13\u5b58\u63a7\u5236<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u4efb\u4f55\u4e00\u4e2a\u4f18\u79c0\u7684\u8f6f\u4ef6\u6765\u8bf4\uff0c\u90fd\u79bb\u4e0d\u5f00\u7f13\u5b58<code>buffer<\/code>\u3002\u5728<code>Nginx<\/code>\u4e2d\u5bf9<code>buffer<\/code>\u5904\u7406\u7684\u65b9\u6cd5\u90fd\u6bd4\u8f83\u4e00\u81f4\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\u6211\u4eec\u8bbe\u7f6e\u5355\u4e2a<code>buffer<\/code>\u7684\u5927\u5c0f\u4ee5\u53ca\u4f7f\u7528<code>buffer<\/code>\u7684\u6570\u91cf\u3002\u5982\u679c\u5355\u4e2a<code>buffer<\/code>\u4e0d\u591f\uff0c\u90a3\u4e48\u7ee7\u7eed\u5206\u914d<code>buffer<\/code>\uff0c\u76f4\u5230\u8fbe\u5230\u6307\u5b9a\u6570\u91cf\u3002\u5982\u679c\u8fd8\u4e0d\u591f\uff0c\u8fd8\u53ef\u80fd\u4f7f\u7528\u4e34\u65f6\u6587\u4ef6\u6765\u4fdd\u5b58\u3002\u8fd9\u91cc\u5c31\u8981\u5c3d\u91cf\u7684\u907f\u514d\u5f00\u8f9f\u4e34\u65f6\u6587\u4ef6\uff0c\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u6240\u6709\u7684\u5185\u5bb9\u90fd\u4fdd\u5b58\u5728\u5185\u5b58\u4e2d\uff0c\u53ef\u4ee5\u63d0\u9ad8\u54cd\u5e94\u901f\u5ea6\u3002<br>\u6211\u4eec\u8981\u5408\u7406\u7684\u8bc4\u4f30\u76f8\u5173\u5185\u5bb9\u7684\u5927\u5c0f\uff0c\u5206\u914d\u9002\u5e94\u7684\u7f13\u5b58\u3002<br>\u548c<code>buffer<\/code>\u76f8\u5173\u7684\u51e0\u4e2a\u5e38\u7528\u914d\u7f6e\u6307\u4ee4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>client_max_body_size<\/code>:\u5ba2\u6237\u7aef\u8bf7\u6c42\u670d\u52a1\u5668\u6700\u5927\u7684<code>body<\/code>\u5927\u5c0f<\/li>\n\n\n\n<li><code>client_body_buffer_size<\/code>:<code>Nginx<\/code>\u5206\u914d\u7ed9\u8bf7\u6c42\u6570\u636e\u7684<code>Buffe<\/code>r\u5927\u5c0f\uff0c\u5982\u679c\u8bf7\u6c42\u7684\u6570\u636e\u5c0f\u4e8e<code>client_body_buffer_size<\/code>\u76f4\u63a5\u5c06\u6570\u636e\u5148\u5728\u5185\u5b58\u4e2d\u5b58\u50a8\u3002\u5982\u679c\u8bf7\u6c42\u7684\u503c\u5927\u4e8e<code>client_body_buffer_size<\/code>\u5c0f\u4e8e<code>client_max_body_size<\/code>\uff0c\u5c31\u4f1a\u5c06\u6570\u636e\u5148\u5b58\u50a8\u5230\u4e34\u65f6\u6587\u4ef6\u4e2d<\/li>\n\n\n\n<li><code>client_header_buffer_size<\/code>: \u6307\u5b9a\u7528\u4e8e\u8bf7\u6c42<code>header<\/code>\u7684\u7f13\u5b58\u533a\u5927\u5c0f<br>\u6b64\u5916\u8fd8\u6709\u5f88\u591a\u7c7b\u4f3c\u7684<code>buffer<\/code>\u5927\u5c0f\uff0c\u529f\u80fd\u90fd\u662f\u5927\u540c\u5c0f\u5f02\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u8d85\u65f6\u65f6\u95f4\">\u8d85\u65f6\u65f6\u95f4<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u65f6\u95f4\u7528\u4e8e\u63a7\u5236\u4e00\u4e9b\u65f6\u95f4\u53c2\u6570\uff0c\u6bd4\u5982\u4ece\u5ba2\u6237\u7aef\u63a5\u6536\u8bf7\u6c42\u5934\u7684\u65f6\u95f4\uff0c\u63a5\u6536\u8bf7\u6c42\u4f53\u7684\u65f6\u95f4\uff0c\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u63a5\u6536\u8bf7\u6c42\u5185\u5bb9\u7684\u65f6\u95f4\u7b49\u7b49\u3002\u901a\u8fc7\u5bf9\u4ed6\u4eec\u8bbe\u7f6e\u4e00\u4e9b\u5408\u7406\u7684\u503c\uff0c\u53ef\u4ee5\u8ba9\u4e00\u4e9b\u8bf7\u6c42\u76f4\u63a5\u7ed3\u675f\u3002<br>\u5e38\u7528\u7684\u8d85\u65f6\u65f6\u95f4\u6709\u4e0b\u9762\u51e0\u4e2a\uff1a<br><code>client_body_timeout<\/code>&nbsp;: \u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\u4e4b\u540e\u63a5\u6536\u4e00\u4e2a\u5b8c\u6574<code>body<\/code>\u4f53\u7684\u65f6\u95f4\u3002<br><code>client_header_timeout<\/code>: \u670d\u52a1\u5668\u63a5\u6536\u4e00\u4e2a\u5b8c\u6574\u7684\u8bf7\u6c42<code>header<\/code>\u7684\u65f6\u95f4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ed8\u8ba4\u7684\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u53c2\u6570\u8003\u8651\u7684\u662f\u6700\u901a\u7528\u573a\u666f\uff0c\u4e0d\u592a\u7b26\u5408\u7528\u4e8e\u652f\u6301\u9ad8\u5e76\u53d1\u8bbf\u95ee\u7684<code>Web<\/code>\u670d\u52a1\u5668\u7684\u573a\u666f\uff0c\u6240\u4ee5\u9700\u8981\u4fee\u6539\u4e00\u4e9b\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u53c2\u6570\uff0c\u4f7f\u5f97Nginx\u53ef\u4ee5\u62e5\u6709\u66f4\u9ad8\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4f18\u5316\u5185\u6838\u53c2\u6570\">\u4f18\u5316\u5185\u6838\u53c2\u6570<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5185\u6838\u6709\u975e\u5e38\u591a\u7684\u53c2\u6570\uff0c\u6240\u4ee5\u6211\u4eec\u5728\u5728\u4f18\u5316\u7684\u65f6\u5019\uff0c\u8981\u6839\u636e\u4e1a\u52a1\u7279\u70b9\u6765\u8fdb\u884c\u8c03\u6574\u3002\u5728\u4e0d\u540c\u7684\u573a\u666f\u4e0b\uff0c\u6bd4\u5982\u5f53<code>Nginx<\/code>\u4f5c\u4e3a\u9759\u6001<code>web<\/code>\u670d\u52a1\u5668\u3001\u6216\u8005\u53cd\u5411\u4ee3\u7406\u6216\u8005\u63d0\u4f9b\u538b\u7f29\u670d\u52a1\u5668\u7684\u65f6\u5019\uff0c\u5176\u5185\u6838\u53c2\u6570\u7684\u8c03\u6574\u90fd\u662f\u4e0d\u540c\u7684\u3002\u4e0b\u9762\u6211\u4eec\u5c31\u770b\u770b\u6709\u54ea\u4e9b\u5e38\u7528\u7684\u53c2\u6570\u53ef\u4ee5\u63d0\u9ad8<code>Nginx<\/code>\u7684\u6027\u80fd:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/img1.sycdn.imooc.com\/5e5dbb1a0001417713561086.png\" alt=\"\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u6587\u4ef6\u53e5\u67c4\">\u6587\u4ef6\u53e5\u67c4<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u77e5\u9053\uff0c\u5728<code>Linux<\/code>\u7cfb\u7edf\u4e2d\uff0c\u6240\u6709\u7684\u4e1c\u897f\u90fd\u662f\u6587\u4ef6\uff0c\u5bf9\u4e8e\u4e00\u4e2a<code>TCP<\/code>\u8fde\u63a5\u4e5f\u4e00\u6837\uff0c<code>Linux<\/code>\u4f7f\u7528\u4e00\u4e2a\u6587\u4ef6\u53e5\u67c4\u6765\u6807\u8bc6\u4e00\u4e2a\u8fde\u63a5\u3002\u6bcf\u4e2a\u8fdb\u7a0b\u53ef\u4ee5\u4f7f\u7528\u7684\u6587\u4ef6\u53e5\u67c4\u6570\u91cf\u662f\u6709\u9650\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u8981\u8c03\u8282\u8fd9\u4e2a\u503c\u7528\u4ee5\u6ee1\u8db3\u8981\u6c42\uff0c\u9632\u6b62\u56e0\u4e3a\u6587\u4ef6\u53e5\u67c4\u6570\u91cf\u8fbe\u5230\u4e0a\u9650\u800c\u5bfc\u81f4\u5efa\u7acb<code>TCP<\/code>\u8fde\u63a5\u5931\u8d25\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>fs.file-max = 999999  # \u5355\u8fdb\u7a0b\u53ef\u4ee5\u4f7f\u7528\u7684\u6700\u5927\u6587\u4ef6\u53e5\u67c4\u6570\u91cf\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5efa\u8fde\u53c2\u6570\">\u5efa\u8fde\u53c2\u6570<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u5efa\u8fde\u961f\u5217\">\u5efa\u8fde\u961f\u5217<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5efa\u7acb<code>TCP<\/code>\u8fde\u63a5\u7684\u65f6\u5019\u6709\u4e24\u4e2a\u961f\u5217(\u5927\u5bb6\u53ef\u4ee5\u67e5\u9605\u76f8\u5173\u7684\u6587\u6863)\uff0c\u901a\u8fc7\u8bbe\u7f6e\u961f\u5217\u7684\u957f\u5ea6\uff0c\u53ef\u4ee5\u52a0\u5feb\u5efa\u8fde\u7684\u901f\u5ea6\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>net.ipv4.tcp_max_syn_backlog = 8192\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u53c2\u6570\u662f\u8bbe\u7f6e\u4e09\u6b21\u63e1\u624b\u9636\u6bb5\u65f6\u5019\u5904\u4e8e<code>SYN<\/code>\u72b6\u6001\u7684\u961f\u5217\u5927\u5c0f\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"\u7aef\u53e3\u53f7\u8303\u56f4\">\u7aef\u53e3\u53f7\u8303\u56f4<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u5b9e\u8fd9\u4e2a\u53c2\u6570\u5f71\u54cd\u7684\u662f\u5ba2\u6237\u7aef\u53ef\u4ee5\u4f7f\u7528\u7684\u7aef\u53e3\u53f7\u6570\u91cf\uff0c\u548c\u670d\u52a1\u7aef\u6ca1\u6709\u5173\u7cfb\u3002\u4f46\u662f\u6211\u8fd8\u662f\u8981\u5728\u8fd9\u91cc\u8bf4\u4e00\u4e0b\u8fd9\u4e2a\u53c2\u6570\uff0c\u56e0\u4e3a\u6211\u4eec\u7684<code>Nginx<\/code>\u670d\u52a1\u5668\u53ef\u80fd\u4f1a\u4f5c\u4e3a\u5ba2\u6237\u7aef\u53bb\u8bf7\u6c42\u5176\u4ed6\u670d\u52a1\u5668\uff0c\u8fd9\u4e2a\u60c5\u51b5\u4e0b\uff0c\u8be5\u53c2\u6570\u5c31\u4f1a\u5f71\u54cd\u5230<code>Nginx<\/code>\u670d\u52a1\u5668\u4e86\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>net.ipv4.ip_local_port_range = 1024 65000 # tcp\u548cupd\u4f7f\u7528\u7684\u7aef\u53e3\u53f7\u8303\u56f4\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u503c\u7531\u7a7a\u683c\u5206\u9694\u7684\u4e24\u90e8\u5206\u7ec4\u6210\uff0c\u5206\u522b\u4ee3\u8868<code>start port<\/code>\u548c<code>end port<\/code>\uff0c\u8981\u628a\u8fd9\u4e2a\u503c\u8c03\u8282\u7684\u7a0d\u5fae\u5927\u4e00\u70b9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"tcp\u72b6\u6001\u53c2\u6570\"><code>TCP<\/code>\u72b6\u6001\u53c2\u6570<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u5148\u770b\u4e00\u4e0b<code>TCP<\/code>\u7684\u65f6\u5e8f\u72b6\u6001\u8f6c\u79fb\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/img1.sycdn.imooc.com\/5e5dbb230001f7e613601350.png\" alt=\"\"\/><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"time_wait\u72b6\u6001\"><code>TIME_WAIT<\/code>\u72b6\u6001<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u5904\u4e8e<code>TIME_WAIT<\/code>\u72b6\u6001\u7684\u5957\u63a5\u5b57\u662f\u4e0d\u80fd\u4f7f\u7528\u7684\uff0c\u8fd9\u662f\u4e3a\u4e86\u9632\u6b62\u8bc6\u522b\u9519\u8bef\u7684\u62a5\u6587\u3002\u4f46\u662f\u5982\u679c\u6709\u5927\u91cf\u7684\u5957\u63a5\u5b57\u5904\u4e8e<code>TIME_WAIT<\/code>\u7684\u8bdd\uff0c\u5c31\u4f1a\u5bfc\u81f4\u670d\u52a1\u7aef\u7684\u5957\u63a5\u5b57\u6570\u91cf\u4e0d\u591f\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u8ba9\u5904\u4e8e\u8fd9\u4e2a\u72b6\u6001\u7684\u5957\u63a5\u5b57\u53ef\u4ee5\u670d\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u8ba9\u5904\u4e8eTIME_WAIT\u72b6\u6001\u7684\u5957\u63a5\u5b57\u53ef\u590d\u7528\nnet.ipv4.tcp_tw_reuse = 1\n\n#\u8bbe\u7f6e\u5904\u4e8eTIME_WAIT\u72b6\u6001\u7684\u5957\u63a5\u5b57\u7684\u6700\u5927\u6570\u91cf\nnet.ipv4.tcp_max_tw_buckets = 5000\n<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"fin_wait2\u72b6\u6001\"><code>FIN_WAIT2<\/code>\u72b6\u6001<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>net.ipv4.tcp_fin_timeout = 30\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bbe\u7f6e\u8fd9\u4e2a\u65f6\u95f4\u4e5f\u662f\u4e3a\u4e86\u5c3d\u5feb\u7684\u91ca\u653e\u5957\u63a5\u5b57\u8d44\u6e90\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u5957\u63a5\u5b57\u53c2\u6570\">\u5957\u63a5\u5b57\u53c2\u6570<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e5f\u6709\u5f88\u591a\u9009\u9879\u53ef\u4ee5\u63a7\u5236\u5957\u63a5\u5b57\u76f8\u5173\u7684\u6027\u80fd\uff0c\u6211\u4eec\u6765\u7b80\u5355\u7684\u4e86\u89e3\u4e00\u4e0b\u3002\u56e0\u4e3a\u8fd9\u4e9b\u914d\u7f6e\u9879\u90fd\u975e\u5e38\u7684\u7b80\u5355\u6613\u61c2\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u5957\u63a5\u5b57\u7f13\u51b2\u533a\">\u5957\u63a5\u5b57\u7f13\u51b2\u533a<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5171\u6709\u56db\u4e2a\u5e38\u7528\u7684\u53c2\u6570\u63a7\u5236\u7740\u5957\u63a5\u5b57\u7f13\u51b2\u533a\u7684\u6027\u80fd\uff0c\u5206\u522b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#\u5185\u6838\u5957\u63a5\u5b57\u63a5\u53d7\u7f13\u5b58\u533a\u9ed8\u8ba4\u5927\u5c0f\nnet.core.rmem_default = 6291456\n\n#\u5185\u6838\u5957\u63a5\u5b57\u53d1\u9001\u7f13\u5b58\u533a\u9ed8\u8ba4\u5927\u5c0f\nnet.core.wmem_default = 6291456\n\n#\u5185\u6838\u5957\u63a5\u5b57\u63a5\u53d7\u7f13\u5b58\u533a\u8f83\u5927\u5927\u5c0f\nnet.core.rmem_max = 12582912\n\n#\u5185\u6838\u5957\u63a5\u5b57\u53d1\u9001\u7f13\u5b58\u533a\u8f83\u5927\u5927\u5c0f\nnet.core.wmem_max = 12582912\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u9762\u51e0\u4e2a\u53c2\u6570\u8981\u6839\u636e\u670d\u52a1\u5668\u7684\u786c\u4ef6\u8fdb\u884c\u76f8\u5e94\u7684\u8bbe\u5b9a\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u957f\u8fde\u63a5\u4e8b\u4ef6\">\u957f\u8fde\u63a5\u4e8b\u4ef6<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u628a\u957f\u8fde\u63a5\u4e5f\u653e\u5230\u4e86\u8fd9\u4e2a\u90e8\u5206\uff0c\u56e0\u4e3a\u6211\u8ba4\u4e3a\u56e0\u4e3a\u957f\u8fde\u63a5\uff0c\u6240\u4ee5\u53ef\u4ee5\u8ba9\u4e00\u4e2a\u5957\u63a5\u5b57\u88ab\u5faa\u73af\u4f7f\u7528\uff0c\u907f\u514d\u4e86\u91cd\u590d\u5efa\u7acb\u8fde\u63a5\uff0c\u9500\u6bc1\u8fde\u63a5\u7684\u64cd\u4f5c\u3002\u4f46\u662f\u5982\u679c\u4e00\u4e2a\u8fde\u63a5\u4e00\u76f4\u6ca1\u6709\u6570\u636e\uff0c\u6211\u4eec\u5e94\u8be5\u53ca\u65f6\u7684\u628a\u4ed6\u9500\u6bc1\uff0c\u907f\u514d\u6d88\u8017\u4e00\u4e2a\u5957\u63a5\u5b57\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u957f\u8fde\u63a5\u4fdd\u6301\u7684\u4e8b\u4ef6\nner.ipv4.tcp_keepalive_time = 600<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"nginx\u914d\u7f6e\"><code>Nginx<\/code>&nbsp;\u914d\u7f6e<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8fd9\u91cc\u6211\u4eec\u8981\u4e86\u89e3\u4e24\u4e2a\u4e00\u4e2a\u914d\u7f6e\u6307\u4ee4\uff0c\u8fd9\u662f&nbsp;<code>Nginx<\/code>&nbsp;\u4e13\u95e8\u4e3a\u9632\u76d7\u94fe\u51c6\u5907\u7684\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>valid_referers \u6307\u4ee4\n$invalid_referer \u53d8\u91cf \n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u987e\u540d\u601d\u4e49\uff0c<code>valid_referers<\/code>&nbsp;\u5c31\u662f\u8bbe\u7f6e\u4e00\u4e9b\u7b26\u5408\u8981\u6c42\u7684&nbsp;<code>Referer<\/code>\u3002\u5982\u679c\u9047\u5230\u6211\u4eec\u7b26\u5408\u6211\u4eec\u8bbe\u7f6e\u7684&nbsp;<code>Referer<\/code>\uff0c\u90a3\u4e48&nbsp;<code>$invalid_referer<\/code>&nbsp;\u53d8\u91cf\u7684\u503c\u5c31\u662f&nbsp;<code>0<\/code>\uff0c\u5426\u5219\u5c31\u662f&nbsp;<code>1<\/code>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5728&nbsp;<code>Nginx<\/code>&nbsp;\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u589e\u52a0\u4e0b\u9762\u7684\u4ee3\u7801\u6bb5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>location ~* \\.(jpeg|png|gif|jpg)$ {\n    valid_referers none www.test.com;\n    if ($invalid_referer){\n        return 200 \"don't steal my pic\";\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6bb5\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u8fd9\u6837\uff1a<br>\u5982\u679c\u8bf7\u6c42\u7684&nbsp;<code>Referer<\/code>&nbsp;\u4e3a\u7a7a\uff0c\u6216\u8005\u4e3a&nbsp;<code>www.test.com<\/code>\uff0c\u90a3\u4e48&nbsp;<code>$valud_referer<\/code>&nbsp;\u7684\u503c\u662f&nbsp;<code>0<\/code>\uff0c\u5426\u5219\u662f&nbsp;<code>1<\/code>\u3002<br>\u5f53&nbsp;<code>$valud_referer<\/code>&nbsp;\u7684\u503c\u662f&nbsp;<code>1<\/code>&nbsp;\u7684\u65f6\u5019\uff0c\u4f1a\u8fd4\u56de\u4e00\u4e2a\u56fa\u5b9a\u7684\u5b57\u7b26\u4e32&nbsp;<code>don't steal my pic<\/code>\u3002\u5f53\u7136\u4e86\uff0c\u771f\u5b9e\u7684\u7ebf\u4e0a\u73af\u5883\u4e2d\uff0c\u5e94\u8be5\u8fd4\u56de&nbsp;<code>404<\/code>\uff0c\u6216\u8005\u4e00\u5f20\u5176\u4ed6\u56fa\u5b9a\u7684\u56fe\u7247\u3002\u6211\u4eec\u8fd9\u91cc\u662f\u4e3a\u4e86\u6d4b\u8bd5\u624d\u8fd9\u6837\u505a\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>OpenResty<\/code>&nbsp;\u7684\u76ee\u6807\u662f\u8ba9\u4f60\u7684<code>Web<\/code>\u670d\u52a1\u76f4\u63a5\u8dd1\u5728&nbsp;<code>Nginx<\/code>&nbsp;\u670d\u52a1\u5185\u90e8\uff0c\u5145\u5206\u5229\u7528&nbsp;<code>Nginx<\/code>&nbsp;\u7684\u975e\u963b\u585e&nbsp;<code>I\/O<\/code>&nbsp;\u6a21\u578b\uff0c\u4e0d\u4ec5\u4ec5\u5bf9&nbsp;<code>HTTP<\/code>&nbsp;\u5ba2\u6237\u7aef\u8bf7\u6c42,\u751a\u81f3\u4e8e\u5bf9\u8fdc\u7a0b\u540e\u7aef\u8bf8\u5982&nbsp;<code>MySQL<\/code>\u3001<code>PostgreSQL<\/code>\u3001<code>Memcached<\/code>&nbsp;\u4ee5\u53ca&nbsp;<code>Redis<\/code>&nbsp;\u7b49\u90fd\u8fdb\u884c\u4e00\u81f4\u7684\u9ad8\u6027\u80fd\u54cd\u5e94\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u6765\u4ecb\u7ecd\u5e38\u7528\u7684\u4f18\u5316\u63aa\u65bd\uff1a CPU\u4f18\u5316 \u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539Nginx\u4e2dCPU\u76f8\u5173\u6307\u4ee4\u6765\u63d0\u5347\u670d\u52a1\u5668\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-52","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/posts\/52","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/comments?post=52"}],"version-history":[{"count":3,"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/posts\/52\/revisions"}],"predecessor-version":[{"id":56,"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/posts\/52\/revisions\/56"}],"wp:attachment":[{"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/media?parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/categories?post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.beijingqingnian.com\/index.php\/wp-json\/wp\/v2\/tags?post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}