1\u3001\u8bed\u6cd5<\/strong><\/span><\/div>\n
\u529f\u80fd:\u901a\u8fc7\u590d\u7528\u8fde\u63a5,\u964d\u4f4eNginx\u4e0e\u4e0a\u6e38\u670d\u52a1\u5668\u5efa\u7acb,\u5173\u95ed\u8fde\u63a5\u7684\u6d88\u8017\uff0c\u63d0\u5347\u541e\u5410\u91cf\u7684\u540c\u65f6\u964d\u4f4e\u65f6\u95f4\u5ef6\u8fdf.\r\n\u6a21\u5757\uff1angx_http_upstream_keepalive_module\u662f\u9ed8\u8ba4\u7f16\u5165\u5230Nginx\u4e2d\u7684,\u5982\u679c\u4e0d\u60f3\u7f16\u8fdb\u53bb\u53ef\u4ee5\u7528\r\n --without-http_upstream_keepalive_module\u5bf9\u8fd9\u4e2a\u6a21\u5757\u8fdb\u884c\u79fb\u9664.\r\n(\/home\/muten\/module\/nginx-1.13.7\u4e2d\u6267\u884c.\/configure --help |more \u641c\u7d22http_upstream_keepalive_module\u53ef\u9a8c\u8bc1)\r\n\r\n\u5173\u4e8eupstream_keepalive\u7684\u6307\u4ee4\uff1a\r\n(1)keepalive\r\nActivates the cache for connections to upstream servers.\r\nThe connections parameter sets the maximum number of idle keepalive connections to \r\nupstream servers that are preserved in the cache of each worker process. When this \r\nnumber is exceeded, the least recently used connections are closed.\r\n\u8868\u793a\u4e0a\u6e38\u670d\u52a1\u5668\u4e2d\u6700\u591a\u4fdd\u6301\u591a\u5c11\u4e2a\u7528\u4e8ekeepalive\u8bf7\u6c42\u7684\u7a7a\u95f2\u7684\u8fde\u63a5.\r\n\u8fd9\u4e2a\u547d\u4ee4\u4f1a\u4fc3\u4f7f\u4e0a\u6e38\u670d\u52a1\u5668\u4e2d\u6bcf\u4e2aworker\u8fdb\u7a0b\u4e2d\u5f00\u8f9f\u51fa\u6765\u4e00\u5757\u7f13\u5b58\u7528\u4e8ekeepalive\u8fde\u63a5\uff0c\r\n\u5f53\u8d85\u8fc7\u8fd9\u4e2a\u6570\u5b57\u7684\u65f6\u5019,\u5c06\u4f1a\u5229\u7528LRU\u7b97\u6cd5\u5c06\u4e00\u4e9b\u8fde\u63a5\u5173\u95ed.\r\n\r\n\u56e0\u4e3ahttp1.0\u534f\u8bae\u662f\u4e0d\u652f\u6301\u957f\u8fde\u63a5\u7684,\u4e3a\u4e86\u9632\u6b62\u7528\u6237\u53d1\u6765\u7684\u662fhttp1.0,\u6211\u4eec\u9700\u8981\u91cd\u7f6ehttp\u7248\u672c,\u5c06\u5176\u7f6e\u62101.1,\u8fd9\u6837\u5c31\u53ef\u4ee5\u4e00\u76f4\u4f7f\u7528keep_alive\u957f\u8fde\u63a5;\r\n\u4e3a\u4e86\u9632\u6b62\u7528\u6237\u7684Connection\u5934\u90e8\u7ed9\u6211\u4eec\u4f20\u9012\u7684\u662fClose\u800c\u4e0d\u662fKeepalive,\u6211\u4eec\u4e3b\u52a8\u8bbe\u7f6e\u5411\u4e0a\u6e38\u53d1\u9001\u7684connection.\r\n\r\nWhen using load balancing methods other than the default round-robin method, it is necessary to activate them \r\nbefore the keepalive directive.\r\n\u5f53\u4f7f\u7528\u7684\u8d1f\u8f7d\u5747\u8861\u65b9\u6cd5\u4e0d\u662f\u9ed8\u8ba4\u7684\u8f6e\u8be2\u7b97\u6cd5\u65f6\uff0c\u9700\u8981\u5728keepalive\u6307\u4ee4\u4e4b\u524d\u6fc0\u6d3b\u4ed6\u4eec\r\n\r\n\u8bed\u6cd5\uff1a\r\nSyntax: keepalive connections;\r\nDefault: \u2014\r\nContext: upstream\r\nThis directive appeared in version 1.1.4.\r\n\r\nSyntax: proxy_http_version 1.0 | 1.1;\r\nDefault: \r\nproxy_http_version 1.0;\r\nContext: http, server, location\r\nThis directive appeared in version 1.1.4.\r\n\r\nSyntax: proxy_set_header field value;\r\nDefault: \r\nproxy_set_header Host $proxy_host;\r\nproxy_set_header Connection close;\r\nContext: http, server, location\r\n\r\n\u5bf9\u4e0a\u6e38\u8fde\u63a5\u7684http\u5934\u90e8\u8bbe\u5b9a\uff1a\r\nproxy_http_version 1.1;\r\nproxy_set_header Connection \"\";\r\n\r\n\u914d\u7f6e\r\nupstream http_backend {\r\n server 127.0.0.1:8080;\r\n keepalive 16;\r\n keepalive_timeout 60s;\r\n}\r\n\r\nserver {\r\n ...\r\n location \/http\/ {\r\n proxy_pass http:\/\/http_backend;\r\n proxy_http_version 1.1;\r\n proxy_set_header Connection \"\";\r\n ...\r\n }\r\n}\r\n<\/pre>\n
2\u3001\u5b9e\u73b0\u539f\u7406<\/strong><\/span><\/div>\n
nginx upstream keepalive\u957f\u8fde\u63a5\u7684\u5b9e\u73b0\u539f\u7406\u3002\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\u7684slowstart\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
\n\u5982\u679c\u4f60\u7684\u8fde\u63a5\u6c60\u7684\u6570\u63a7\u5236\u5728128\uff0c\u603b\u5171\u7ebf\u7a0b\u6c60\u5185\u7684\u7ebf\u7a0b\u6570\u662f128 * nginx worker \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\uff0c1.8\u662f\u957f\u8fde\u63a5\uff0c\u90a3\u4ed6\u5982\u4f55\u88ab\u6536\u56de\uff0c\u4e24\u70b9\u4fdd\u8bc1\uff0c\u4e00\u70b9\u662f\u4ed6\u4f1a\u4e3b\u52a8\u53bb\u91ca\u653e\uff0c\u53e6\u4e00\u70b9\u662fkeepalive timeout\u7684\u65f6\u95f4<\/p>\n","protected":false},"excerpt":{"rendered":"
Nginx Upstream\u8fde\u63a5\u540e\u7aef\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a\u77ed\u8fde\u63a5\u548c\u957f\u8fde\u63a5\u3002Keep-Alive\u5373\u4fd7\u79f0\u7684\u957f\u8fde\u63a5\uff0c\u4f7f\u5ba2\u6237\u7aef\u5230 […]<\/p>\n","protected":false},"author":643,"featured_media":253224,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-253218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/253218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/643"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=253218"}],"version-history":[{"count":4,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/253218\/revisions"}],"predecessor-version":[{"id":253223,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/253218\/revisions\/253223"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/253224"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=253218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=253218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=253218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}