{"id":788,"date":"2016-12-12T10:37:13","date_gmt":"2016-12-12T02:37:13","guid":{"rendered":"http:\/\/www.ipcpu.com\/?p=788"},"modified":"2016-12-12T10:37:13","modified_gmt":"2016-12-12T02:37:13","slug":"nginx-high-memory","status":"publish","type":"post","link":"https:\/\/c.ipcpu.com\/2016\/12\/nginx-high-memory\/","title":{"rendered":"nginx\u5185\u5b58\u5360\u7528\u8fc7\u9ad8"},"content":{"rendered":"<p>nginx\u5185\u5b58\u5360\u7528\u8fc7\u9ad8.md<\/p>\n<h2 id=\"wiz_toc_0\">\u73b0\u8c61<\/h2>\n<p>nginx\u8fd0\u884c\u4e00\u6bb5\u65f6\u95f4\u540e\uff0c\u5185\u5b58\u5360\u7528\u975e\u5e38\u9ad8\uff0c\u8d85\u51fa\u7cfb\u7edf\u6700\u5927\u5185\u5b58\u540e\uff0c\u5f00\u59cb\u4f7f\u7528SWAP\uff0c\u76f4\u81f3SWAP\u7528\u5c3d\uff0c\u7cfb\u7edf\u5d29\u6e83\u3002\u5185\u6838\u53c2\u6570vm.swappiness = 1\u3002<\/p>\n<p>\u5982\u56fe\uff1a <br \/>\n<img decoding=\"async\" src=\"\/\/www.ipcpu.com\/wp-content\/uploads\/2017\/11\/wpid-2ff0e1dbf24f315b8cec34277df87d0b_35746327.png\"><\/p>\n<p>\u76d1\u63a7\u8d8b\u52bf\u56fe\uff1a <\/p>\n<p><img decoding=\"async\" src=\"\/\/www.ipcpu.com\/wp-content\/uploads\/2017\/11\/2017-11-19_104727.jpg\"><\/p>\n<h2 id=\"wiz_toc_1\">\u5206\u6790\u548c\u6392\u67e5<\/h2>\n<p>\u56e0\u4e3a\u4e4b\u524d\u4f7f\u7528\u7684nginx\u7248\u672c\u4e3a 1.11 \uff0c\u51fa\u73b0\u5185\u5b58\u6cc4\u9732bug\u7684\u53ef\u80fd\u6027\u8f83\u5c0f\uff0c\u5e76\u4e14\u7f51\u4e0a\u6ca1\u6709\u76f8\u5173\u53cd\u9988\u3002<\/p>\n<p>\u4e4b\u540e\u5f00\u59cb\u5206\u6790nginx\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u9996\u5148\u53d1\u73b0\u7684\u6bd4\u8f83\u7279\u6b8a\u7684\u914d\u7f6e\u662f\u9632\u5237\u6a21\u5757\u914d\u7f6e\u3002<\/p>\n<p>\u4fee\u6539\u4e86\u9632\u5237\u6a21\u5757\u914d\u7f6e\uff0c\u89c2\u5bdf\u4e00\u6bb5\u65f6\u95f4\uff0c\u65e0\u6548\uff01<\/p>\n<p>\u4e8e\u662f\u7ee7\u7eed\u67e5\u627e\u914d\u7f6e\u6587\u4ef6\uff0c\u53d1\u73b0client_header_buffer_size\u6709\u70b9\u5927\uff0c\u505a\u4e86\u8c03\u6574<\/p>\n<pre class=\"prettyprint linenums prettyprinted\"><ol class=\"linenums\"><li class=\"L0\"><code><span class=\"pln\">client_header_buffer_size <\/span><span class=\"lit\">20000k<\/span><span class=\"pun\">;<\/span><\/code><\/li><li class=\"L1\"><code><span class=\"com\">#@\u4fee\u6539\u4e3a<\/span><\/code><\/li><li class=\"L2\"><code><span class=\"pln\">client_header_buffer_size <\/span><span class=\"lit\">32k<\/span><span class=\"pun\">;<\/span><\/code><\/li><\/ol><\/pre>\n<p>\u89c2\u5bdf\u4e86\u51e0\u5929\uff0c\u95ee\u9898\u89e3\u51b3\u4e86\uff0c\u518d\u4e5f\u6ca1\u51fa\u73b0\u5185\u5b58\u5360\u7528\u8fc7\u9ad8\u7684\u95ee\u9898\u3002\u6c57\uff0c\u524d\u4eba\u6316\u7684\u5927\u5751\u554a\uff0c\u8bbf\u95ee\u91cf\u4f4e\u4e86\u8fd8\u770b\u4e0d\u51fa\u6765\u3002<\/p>\n<h2 id=\"wiz_toc_2\">\u5206\u6790<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" src=\".\/1c36ce36-5175-4db3-a818-ca24aeecab66_files\/205d9adc-a496-4a46-be05-c28478cc7809.png\" width=\"320\" height=\"74\"> <br \/>\n Sets buffer size for reading client request header. For most requests, a buffer of 1K bytes is enough. However, if a request includes long cookies, or comes from a WAP client, it may not fit into 1K. If a request line or a request header field does not fit into this buffer then larger buffers, configured by thelarge_client_header_buffers directive, are allocated.<\/p>\n<p>Nginx \u4f7f\u7528 client_header_buffer_size \u7f13\u5b58\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u5934\uff0c\u5bf9\u4e8e\u5927\u90e8\u5206\u8bf7\u6c42\uff0c1K\u7684\u9ed8\u8ba4\u503c\u5df2\u7ecf\u8db3\u591f\u4e86\u3002\u4e00\u65e6\u8bf7\u6c42\u5934\u8d85\u8fc7\u4e861K\uff0c\u7a7a\u95f4\u4e0d\u591f\u4e86\uff0cnginx\u5c31\u901a\u8fc7 large_client_header_buffers \u6309\u9700\u6269\u5bb9\uff0c\u8fd9\u6837\u505a\u53ef\u4ee5\u5e73\u8861\u8d44\u6e90\u548c\u6027\u80fd\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\u5927\u90e8\u5206\u8bf7\u6c42\u5934\u7684\u5927\u5c0f\u5728 2K \u4ee5\u5185\uff0c\u5c0f\u90e8\u5206\u7684\u8bf7\u6c42\u5934\u5728 10K \u5de6\u53f3\uff0c\u6b64\u65f6\u7406\u8bba\u4e0a\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574 client_header_buffer_size \u5230 10K \u6765\u89e3\u51b3\u95ee\u9898\uff0c\u4e0d\u8fc7\u8fd9\u6837\u7684\u8bdd\u65e0\u7591\u6d6a\u8d39\u4e86\u5b9d\u8d35\u7684\u5185\u5b58\uff0c\u66f4\u597d\u7684\u65b9\u6cd5\u662f\u8c03\u6574 client_header_buffer_size \u5230 2K \u6ee1\u8db3\u5927\u90e8\u5206\u8bf7\u6c42\u5934\u7684\u9700\u6c42\uff0c\u81f3\u4e8e\u5c0f\u90e8\u5206 10K \u7684\u8bf7\u6c42\u5934\uff0c\u5219\u901a\u8fc7\u8c03\u6574 large_client_header_buffers \u6765\u6ee1\u8db3\u3002<\/p>\n<h2 id=\"wiz_toc_3\">\u53c2\u8003\u8d44\u6599<\/h2>\n<p><a href=\"https:\/\/huoding.com\/2014\/12\/31\/407\">https:\/\/huoding.com\/2014\/12\/31\/407<\/a><\/p>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"https:\/\/c.ipcpu.com\">IPCPU-\u7f51\u7edc\u4e4b\u8def<\/a> &raquo; <a href=\"https:\/\/c.ipcpu.com\/2016\/12\/nginx-high-memory\/\">nginx\u5185\u5b58\u5360\u7528\u8fc7\u9ad8<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>nginx\u5185\u5b58\u5360\u7528\u8fc7\u9ad8.md \u73b0\u8c61 nginx\u8fd0\u884c\u4e00\u6bb5\u65f6\u95f4\u540e\uff0c\u5185\u5b58\u5360\u7528\u975e\u5e38\u9ad8\uff0c\u8d85\u51fa\u7cfb\u7edf\u6700\u5927\u5185\u5b58\u540e\uff0c\u5f00\u59cb\u4f7f\u7528SWAP\uff0c\u76f4\u81f3SWAP\u7528\u5c3d\uff0c\u7cfb\u7edf\u5d29\u6e83\u3002\u5185\u6838\u53c2\u6570vm.swappiness = 1\u3002 \u5982\u56fe\uff1a \u76d1\u63a7\u8d8b\u52bf\u56fe\uff1a \u5206\u6790\u548c\u6392\u67e5 \u56e0\u4e3a\u4e4b\u524d\u4f7f\u7528\u7684nginx\u7248\u672c\u4e3a 1.11 \uff0c\u51fa\u73b0\u5185\u5b58\u6cc4\u9732bug\u7684\u53ef\u80fd\u6027\u8f83\u5c0f\uff0c\u5e76\u4e14\u7f51\u4e0a\u6ca1\u6709\u76f8\u5173\u53cd\u9988\u3002 \u4e4b\u540e\u5f00\u59cb\u5206\u6790nginx\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u9996\u5148\u53d1\u73b0\u7684\u6bd4\u8f83\u7279\u6b8a\u7684\u914d\u7f6e\u662f\u9632\u5237\u6a21\u5757\u914d\u7f6e\u3002 \u4fee\u6539\u4e86\u9632\u5237\u6a21\u5757\u914d\u7f6e\uff0c\u89c2\u5bdf\u4e00\u6bb5\u65f6\u95f4\uff0c\u65e0\u6548\uff01 \u4e8e\u662f\u7ee7\u7eed\u67e5\u627e\u914d\u7f6e\u6587\u4ef6\uff0c\u53d1\u73b0client_header_buffer_size\u6709\u70b9\u5927\uff0c\u505a\u4e86\u8c03\u6574 client_header_buffer_size 20000k;#@\u4fee\u6539\u4e3aclient_header_buffer_size 32k; \u89c2\u5bdf\u4e86\u51e0\u5929\uff0c\u95ee\u9898\u89e3\u51b3\u4e86\uff0c\u518d\u4e5f\u6ca1\u51fa\u73b0\u5185\u5b58\u5360\u7528\u8fc7\u9ad8\u7684\u95ee\u9898\u3002\u6c57\uff0c\u524d\u4eba\u6316\u7684\u5927\u5751\u554a\uff0c\u8bbf\u95ee\u91cf\u4f4e\u4e86\u8fd8\u770b\u4e0d\u51fa\u6765\u3002 \u5206\u6790 Sets buffer size for reading client request header. For most requests, a buffer of 1K bytes is enough. However, if a request includes long cookies, or comes from a WAP client, it may not fit into [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[17,14],"_links":{"self":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/788"}],"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=788"}],"version-history":[{"count":0,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/788\/revisions"}],"wp:attachment":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/media?parent=788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/categories?post=788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/tags?post=788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}