{"id":9547,"date":"2024-04-01T11:37:49","date_gmt":"2024-04-01T03:37:49","guid":{"rendered":"https:\/\/egonlin.com\/?p=9547"},"modified":"2024-06-02T23:59:57","modified_gmt":"2024-06-02T15:59:57","slug":"nginx%e7%9a%84upstream%e6%a8%a1%e5%9d%97","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=9547","title":{"rendered":"nginx\u7684upstream\u6a21\u5757"},"content":{"rendered":"

\u4e00\u3001upstream\u6a21\u5757\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861<\/h1>\n

1.1 \u8d1f\u8f7d\u5747\u8861\u914d\u7f6e<\/h2>\n

upstream\u5728http\u5757\u5185\uff0c\u4e0eserver\u5757\u5e76\u5217\uff0c\u7528\u4e8e\u914d\u7f6e\u8d1f\u8f7d\u5747\u8861\uff0c\u867d\u7136upstream\u6a21\u5757\u9700\u8981\u4e0e\u4ee3\u7406\u6307\u4ee4\u4e00\u8d77\u4f7f\u7528\uff0c\u4f46\u4ee3\u7406\u6307\u4ee4\u4ec5\u4ec5\u53ea\u662f\u7528\u4e8e\u8f6c\u53d1\u8bf7\u6c42\u5b83\u672c\u8eab\u5e76\u6ca1\u6709\u4efb\u4f55\u8d1f\u8f7d\u5747\u8861\u7684\u529f\u80fd\uff0cupstream\u624d\u662f\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u7684\u5177\u4f53\u6a21\u5757
\n1\uff09\u4f5c\u7528\uff1aupstream\u5b9a\u4e49\u4e86\u5728\u53cd\u5411\u4ee3\u7406\u65f6 Nginx \u9700\u8981\u8bbf\u95ee\u7684\u540e\u7aef\u670d\u52a1\u5668\u96c6\u7fa4\u548c\u8d1f\u8f7d\u5747\u8861\u7b56\u7565\u3002
\n2\uff09\u8bed\u6cd5\uff1aupstream name { server ip:port; \u2026 }
\n3\uff09\u5728upsream\u5b9a\u4e49\u7684\u4e3b\u673a\u7ec4\u5185\uff0c\u6bcf\u4e2aip:port\u540e\uff0c\u53ef\u4ee5\u8ddf\u68c0\u6d4b\u8282\u70b9\u5957\u63a5\u5b57\u670d\u52a1\u72b6\u6001\u7684\u53c2\u6570\uff08\u57fa\u4e8etcp\u534f\u8bae\uff09<\/p>\n\n\n\n\n\n\n\n\n\n
\u72b6\u6001<\/strong><\/th>\n\u6982\u8ff0<\/strong><\/th>\n<\/tr>\n<\/thead>\n
down<\/td>\n\u8282\u70b9\u4e0b\u7ebf\uff0c\u5f53\u524d\u8282\u70b9\u4e0d\u53c2\u4e0e\u8d1f\u8f7d\u5747\u8861\uff0c\u4e00\u822c\u7528\u4e8e\u4e34\u65f6\u7ef4\u62a4\u573a\u666f<\/td>\n<\/tr>\n
backup<\/td>\n\u5907\u7528\u8282\u70b9,\u5e73\u65f6\u4e0d\u751f\u6548\uff0c\u4e00\u65e6\u5168\u90e8\u8282\u70b9\u90fd\u6302\u6389\u624d\u5f00\u59cb\u5de5\u4f5c<\/td>\n<\/tr>\n
max_fails<\/td>\n\u5141\u8bb8\u8bf7\u6c42\u5931\u8d25\u7684\u6b21\u6570<\/td>\n<\/tr>\n
fail_timeout<\/td>\n\u7ecf\u8fc7max_fails\u5931\u8d25\u540e, \u8be5\u8282\u70b9\u88ab\u6682\u505c\u4ee3\u7406\u7684\u65f6\u95f4<\/td>\n<\/tr>\n
max_conns<\/td>\n\u9650\u5236\u6700\u5927\u7684\u63a5\u6536\u8fde\u63a5\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u793a\u4f8b<\/p>\n

server {\r\n    listen 8888;\r\n    server_name localhost;\r\n    location ^~ \/test\/ {\r\n        #1\u3001\u8f6c\u53d1\u539f\u59cb\u8bf7\u6c42\u7684 host \u5934\u90e8\r\n        proxy_set_header X-Real-IP $remote_addr;  # \u8bbe\u7f6e\u771f\u5b9e\/\u539f\u59cb\u5ba2\u6237\u7aef\u7684 IP \u5730\u5740\r\n        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;  # \u8ffd\u52a0\u539f\u59cb\u5ba2\u6237\u7aef\u7684 IP \u5730\u5740\u5230 X-Forwarded-For \u5934\u4fe1\u606f\u4e2d\u3002\u8fd9\u6837\uff0c\u5728\u540e\u7aef\u670d\u52a1\u5668\u4e2d\u5c31\u53ef\u4ee5\u901a\u8fc7\u8bfb\u53d6 X-Forwarded-For \u5934\u4fe1\u606f\u6765\u83b7\u53d6\u539f\u59cb\u5ba2\u6237\u7aef\u7684 IP \u5730\u5740\u3002\r\n        proxy_set_header Host $host;\r\n        #2\u3001\u8f6c\u53d1\u5230upstream\u5757\u5b9a\u4e49\u7684\u670d\u52a1\u5668\u96c6\u7fa4\r\n        proxy_pass http:\/\/test_balance;\r\n    }\r\n}\r\n#\u4e0a\u6e38\u670d\u52a1\u5217\u8868\r\nupstream test_balance {\r\n    server 192.168.43.100:8080 max_fails=3 fail_timeout=5s;\r\n    server 192.168.43.101:8080 max_fails=3 fail_timeout=5s;\r\n    server 192.168.43.102:8080 backup;\r\n}<\/code><\/pre>\n
\u540e\u7aefweb\u53ef\u80fd\u5b58\u653e\u6709\u7f13\u5b58\uff0c\u6e05\u7406\u6389rm -rf \/var\/cache\/nginx\/*<\/p>\n
1.2 \u6162\u542f\u52a8<\/h2>\n
1\u3001nginx\u7684\u5546\u4e1a\u7248\u672cnginx plus\u63d0\u4f9b\u4e86\u4e00\u4e2aslow_start\u53c2\u6570<\/h3>\n
Nginx Plus\u662f\u4e00\u4e2a\u7531Nginx\u5f00\u53d1\u7684\u5546\u4e1a\u7248\uff0c\u63d0\u4f9b\u4e86\u6bd4\u5f00\u6e90\u7248Nginx\u66f4\u591a\u7684\u529f\u80fd\u548c\u652f\u6301\u3002\u5b98\u7f51\uff1ahttps:\/\/www.nginx-cn.net\/products\/nginx\/<\/code><\/pre>\n
Nginx Plus\u63d0\u4f9b\u7684slow_start\u53c2\u6570\u7528\u4e8e\u63a7\u5236\u5411\u540e\u7aef\u670d\u52a1\u5668\u589e\u52a0\u8d1f\u8f7d\u7684\u901f\u5ea6\u3002\u8fd9\u4e2a\u53c2\u6570\u5728\u670d\u52a1\u5668\u6062\u590d\u540e\u7684\u7b2c\u4e00\u6b21\u4f7f\u7528\u6216\u8005\u5728\u670d\u52a1\u5668\u88ab\u4fee\u590d\u5b8c\u6bd5\u3001\u521a\u521a\u542f\u52a8\u65f6\u975e\u5e38\u6709\u7528\uff0c\u56e0\u4e3a\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u670d\u52a1\u5668\u53ef\u80fd\u65e0\u6cd5\u7acb\u523b\u627f\u53d7\u5927\u91cf\u7684\u8bf7\u6c42\u3002
\nslow_start\u53c2\u6570\u503c\u8bbe\u5b9a\u4e86\u4e00\u4e2a\u65f6\u95f4\u6bb5\uff0c\u65b0\u6dfb\u52a0\u7684\u670d\u52a1\u5668\u6216\u6062\u590d\u7684\u670d\u52a1\u5668\uff0c\u5728\u8fd9\u4e2a\u65f6\u95f4\u6bb5\u5185\u5c06\u4ece0\u5f00\u59cb\u9010\u6b65\u88ab\u589e\u52a0\u8bf7\u6c42\u3002
\n\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5305\u542b slow_start \u53c2\u6570\u7684\u793a\u4f8b\u914d\u7f6e\uff1a<\/p>\n
upstream backend {\r\n    server backend1.example.com slow_start=30s;\r\n    server backend2.example.com;\r\n    server backend3.example.com;\r\n}<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d\uff0c\u5982\u679cbackend1.example.com\u670d\u52a1\u5668\u91cd\u65b0\u4e0a\u7ebf\u6216\u521a\u542f\u52a8\uff0cNginx\u5728\u524d30\u79d2\u5185\u4f1a\u9010\u6e10\u589e\u52a0\u4f20\u9001\u5230\u8fd9\u4e2a\u670d\u52a1\u5668\u7684\u8bf7\u6c42\uff0c\u800c\u4e0d\u662f\u4e00\u4e0b\u5b50\u628a\u5927\u91cf\u8bf7\u6c42\u6253\u8fc7\u53bb\u3002
\n\u5176\u4e2d\u9700\u8981\u6ce8\u610f\u7684\u662f\uff1a
\nslow_start\u7684\u503c\u4e0d\u80fd\u8bbe\u7f6e\u5f97\u8fc7\u4f4e\uff0c\u5426\u5219\u65b0\u670d\u52a1\u5668\u6216\u6062\u590d\u7684\u670d\u52a1\u5668\u53ef\u80fd\u65e0\u6cd5\u627f\u53d7\u7a81\u7136\u589e\u52a0\u7684\u8bf7\u6c42\u3002\u4f46\u4e5f\u4e0d\u80fd\u8bbe\u7f6e\u5f97\u8fc7\u9ad8\uff0c\u5426\u5219\u53ef\u80fd\u5f71\u54cd\u670d\u52a1\u7684\u6027\u80fd\u3002
\n2.slow_start\u7684\u4f5c\u7528\u65f6\u95f4\u7ed3\u675f\u540e\uff0c\u670d\u52a1\u5668\u5c31\u4f1a\u6b63\u5e38\u53c2\u4e0e\u8d1f\u8f7d\u5747\u8861\u3002
\n3.slow_start\u53ea\u6709\u5728round-robin \u548c least_conn \u8fd9\u4e24\u79cd\u5206\u914d\u7b56\u7565\u4e2d\u624d\u6709\u6548\u3002
\n4.slow_start\u4ec5\u5728Nginx 1.11.5\u53ca\u66f4\u9ad8\u7248\u672c\u4e2d\u53ef\u7528\u3002<\/p>\n
2\u3001\u5f00\u6e90\u7684nginx\u5982\u4f55\u5b9e\u73b0\u7c7b\u4f3c\u7684\u6548\u679c<\/h3>\n
\u5bf9\u4e8e\u5f00\u6e90\u7248\u672c\u7684NGINX\uff0c\u867d\u7136\u6ca1\u6709\u5185\u7f6e\u7684slow_start\u529f\u80fd\uff0c\u4f46\u6709\u4e00\u4e9b\u7b56\u7565\u53ef\u4ee5\u5b9e\u73b0\u7c7b\u4f3c\u7684\u6548\u679c\uff1a
\n1\u3001\u4f7f\u7528\u6743\u91cd\u8c03\u6574\u7b56\u7565\uff1a\u4f60\u53ef\u4ee5\u5f00\u59cb\u65f6\u5c06\u5931\u8d25\u7684\u540e\u7aef\u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u5747\u8861\u6743\u91cd\u8bbe\u7f6e\u5f97\u8f83\u4f4e\uff0c\u7136\u540e\u9010\u6b65\u63d0\u9ad8\u6743\u91cd\u3002\u8fd9\u9700\u8981\u624b\u52a8\u64cd\u4f5c\u6216\u8005\u7f16\u5199\u811a\u672c\u5b9a\u65f6\u8c03\u6574\u6743\u91cd\u3002
\n2\u3001\u7075\u6d3b\u4f7f\u7528\u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\uff1aNGINX\u652f\u6301\u591a\u79cd\u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\uff0c\u4f8b\u5982\u8f6e\u8be2\uff08Round Robin\uff09\u3001\u6700\u5c11\u94fe\u63a5\uff08Least Connections\uff09\u7b49\uff0c\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u8fd9\u4e9b\u7b97\u6cd5\uff0c\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u5b9e\u73b0slow_start\u7684\u6548\u679c\u3002
\n3\u3001\u4f7f\u7528\u5176\u4ed6\u5f00\u6e90\u5de5\u5177\uff1a\u8fd8\u6709\u4e00\u4e9b\u5f00\u6e90\u5de5\u5177\u5982HAProxy\u4e5f\u63d0\u4f9b\u4e86slow_start\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u4f7f\u7528\u3002
\n\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u6709\u5176\u5c40\u9650\u6027\uff0c\u5982\u679cslow_start\u5bf9\u4f60\u7684\u4e1a\u52a1\u5341\u5206\u91cd\u8981\uff0c\u53ef\u80fd\u9700\u8981\u8003\u8651\u4f7f\u7528NGINX Plus\u6216\u8005\u5176\u4ed6\u63d0\u4f9b\u4e86\u6b64\u529f\u80fd\u7684\u5de5\u5177\u3002<\/p>\n
1.3 \u8d1f\u8f7d\u5747\u8861\u5e38\u89c1\u95ee\u9898<\/h2>\n
1\uff09\u95ee\u9898\uff1a\u670d\u52a1\u6d3b\u7740\uff0c\u63a5\u53e3\u4ee3\u7801\u51fa\u9519\u4e86<\/h4>\n
\u8d1f\u8f7d\u5747\u8861\u7ba1\u7406\u7684\u591a\u4e2a\u8282\u70b9\u4e2d\uff0c\u67d0\u4e2a\u8282\u70b9\u4e0a\u7684\u5957\u63a5\u5b57\u670d\u52a1\u672c\u8eab\u6302\u6389\u4e86\uff0c\u4f1a\u5bfc\u81f4\u8d1f\u8f7d\u5747\u8861\u4e0e\u5176\u8fde\u63a5\u8d85\u65f6\r\n\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cNginx\u662f\u672c\u8eab\u662f\u6709\u673a\u5236\u7684\uff0c\u5c31\u662f\u4f60\u4e4b\u524d\u5728upstream\u6a21\u5757\u5185ip\u4e0eport\u540e\u589e\u52a0\u7684\u4e00\u4e9b\u8fde\u63a5\u5931\u8d25\u7684\u5c1d\u8bd5\u53c2\u6570\uff0c\r\nnginx\u4f1a\u6839\u636e\u8fd9\u4e9b\u53c2\u6570\u5224\u5b9a\u8282\u70b9\u662f\u5426\u6302\u6389\uff0c\u5982\u679c\u51fa\u73b0\u4e00\u4e2a\u8282\u70b9\u6302\u6389\u7684\u65f6\u5019\uff0cNginx\u4f1a\u66f4\u636e\u4f60\u5177\u4f53\u8d1f\u8f7d\u5747\u8861\u7684\u8bbe\u7f6e\uff0c\u5c06\u8bf7\u6c42\u8f6c\u79fb\u5230\u5176\u4ed6\u7684\u8282\u70b9\u4e0a\uff0c\r\n\r\n\u4f46\u662f\u53ef\u80fd\u4f1a\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\uff0c\u5c31\u662f\u8d1f\u8f7d\u5747\u8861\u7ba1\u7406\u7684\u540e\u53f0\u8282\u70b9\u4e0a\u7684\u5957\u63a5\u5b57\u670d\u52a1\u662f\u8fd0\u884cok\u7684\uff0c\u90fd\u80fd\u6b63\u5e38\u63a5\u6536\u8d1f\u8f7d\u5747\u8861\u53d1\u6765\u7684\u8bf7\u6c42\r\n\u5373\u8be5\u8282\u70b9\u6ca1\u6709down\u6389\uff0c\u95ee\u9898\u662f\u51fa\u5728\u5185\u90e8\u4ee3\u7801\u9519\u8bef\u800c\u8fd4\u56de\u5982:504\u3001502\u3001500\u7b49\u5f02\u5e38\u7801\u7684\u60c5\u51b5,\u5bfc\u81f4\u7528\u6237\u8bbf\u95ee\u5931\u8d25\r\n\r\n\u6b64\u65f6\uff0c\u4f1a\u7ed9\u7528\u6237\u9020\u6210\u4e0d\u597d\u7684\u5f71\u54cd\uff0c\u4e3a\u4e86\u80fd\u591f\u907f\u514d\u8fd9\u79cd\u95ee\u9898\r\n\u6211\u4eec\u9700\u8981\u52a0\u4e00\u4e2a\u8d1f\u8f7d\u5747\u8861\u7684\u8bbe\u7f6e\uff0c\u5982\u4e0b\uff1aproxy_next_upstream http_500 | http_502 | http_503 | http_504 |http_404;\r\n\u610f\u601d\u662f\uff0c\u5f53\u5176\u4e2d\u4e00\u53f0\u8fd4\u56de\u9519\u8bef\u7801404,500...\u7b49\u9519\u8bef\u65f6\uff0c\u53ef\u4ee5\u5206\u914d\u5230\u4e0b\u4e00\u53f0\u670d\u52a1\u5668\u7a0b\u5e8f\u7ee7\u7eed\u5904\u7406\uff0c\u63d0\u9ad8\u5e73\u53f0\u8bbf\u95ee\u6210\u529f\u7387\u3002<\/code><\/pre>\n
\u793a\u4f8b<\/p>\n
============================>web01\r\nserver {\r\n    listen 8080;\r\n    server_name 192.168.71.14;\r\n\r\n    location ~* \/ {\r\n        default_type text\/html;\r\n        return 200 \"web01\";\r\n    }\r\n}\r\n============================>web02\r\nserver {\r\n    listen 8080;\r\n    server_name 192.168.71.15;\r\n\r\n    location ~* \/ {\r\n        return 500; # ======\u300b \u8fd9\u53f0\u670d\u52a1\u5668\u7aef\u53e3\u6b63\u786e\u542f\u52a8\u7740\u670d\u52a1\u672c\u8eab\u5e76\u65e0\u5f02\u5e38\uff0c\u4f46\u662f\u63a5\u53e3\u5c42\u6a21\u62df\u4ee3\u7801\u8fd0\u884c\u51fa\u9519\u8fd4\u56de500\r\n    }\r\n}\r\n============================>web03\r\nserver {\r\n    listen 8080;\r\n    server_name 192.168.71.16;\r\n\r\n    location ~* \/ {\r\n        default_type text\/html;\r\n        return 200 \"web03\";\r\n    }\r\n}\r\n============================>\u8d1f\u8f7d\u5747\u8861\r\nhttp {\r\n    upstream webserver {\r\n      server 192.168.71.14:8080;\r\n      server 192.168.71.15:8080;\r\n      server 192.168.71.16:8080;\r\n    }\r\n    server {\r\n        listen       9090;\r\n        server_name  192.168.71.12;\r\n        location \/ {\r\n           proxy_pass  http:\/\/webserver;\r\n           proxy_set_header X-Real-IP $remote_addr; \r\n           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;\r\n           proxy_set_header Host $http_host;\r\n        }\r\n    }\r\n}\r\n============================>\u6d4b\u8bd5\r\n\u8bbf\u95ee\uff1a192.168.71.12:9090,\u6709\u4e00\u6b21\u8bbf\u95ee\u662f500\u9519\u8bef\uff0c\u540e\u7aef\u670d\u52a1\u5e76\u6ca1\u6709down\u6389\uff0c\u53ea\u662f\u63a5\u53e3\u5c42\u9762\u51fa\u9519\u8fd4\u56de500\u4e86\uff0c\u8fd9\u5c31\u8ba9\u7528\u6237\u611f\u89c9\u5f88\u4e0d\u597d<\/code><\/pre>\n
2\uff09\u89e3\u51b3\u95ee\u9898\u7684\u6a21\u5757<\/h4>\n
Syntax: proxy_next_upstream error | timeout | invalid_header | http_500 | http_502 | http_503 | http_504 | http_403 | http_404 | http_429 | non_idempotent | off ...;\r\nDefault:    proxy_next_upstream error timeout;\r\nContext:    http, server, location<\/code><\/pre>\n
3\uff09\u914d\u7f6e<\/h4>\n
[root@lb01 ~]# vim \/etc\/nginx\/conf.d\/linux.wp.com.conf\r\nupstream blog {\r\n    server 172.16.1.7;\r\n    server 172.16.1.8;\r\n}\r\n\r\nserver {\r\n    listen 80;\r\n    server_name linux.wp.com;\r\n\r\n    location \/ {\r\n        proxy_pass http:\/\/blog;\r\n        include proxy_params; # \u8be5\u884c\u6307\u7684\u662f\u5f15\u5165\u4ee3\u7406\u914d\u7f6e\u53c2\u6570\u6587\u4ef6\uff0c\u5982\u679c\u62a5\u9519\u627e\u4e0d\u5230\u8be5\u6587\u4ef6\uff0c\u90a3\u8be5\u884c\u6ce8\u91ca\u5c31\u884c<\/span>\r\n        #\u53ef\u4ee5\u914d\u7f6e\u5728\u8fd9\u91cc\uff0c\u5f53\u7136\u4e5f\u53ef\u4ee5\u5199\u5230include\u6307\u5b9a\u7684\u6587\u4ef6\u91cc\r\n        proxy_next_upstream error timeout http_500 http_502 http_503 http_504 http_403 http_404;\r\n    }\r\n}\r\n\r\n#\u91cd\u542f\r\n[root@lb01 ~]# systemctl restart nginx<\/code><\/pre>\n
\u63a5\u53e3\u62a5\u9519\u4e0a\u8ff0code\u7684\u4e0d\u4f1a\u88ab\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff0cupstream\u4f1a\u91cd\u65b0\u8bf7\u6c42ok\u7684web\u670d\u52a1\u5668\u6765\u5f97\u5230\u6b63\u5e38\u54cd\u5e94<\/p>\n
1.4 \u8d1f\u8f7d\u5747\u8861\u8c03\u5ea6\u7b97\u6cd5<\/h2>\n
Nginx \u8d1f\u8f7d\u5747\u8861\u6709 rr\u8f6e\u8be2\uff08\u9ed8\u8ba4\uff09\u3001wrr\u52a0\u6743\u8f6e\u8be2\u3001ip_hash\u3001url_hash\u3001fair \u4e94\u79cd\u7b56\u7565\uff0c\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u4f7f\u7528\u4e0d\u540c\u7684\u8d1f\u8f7d\u5747\u8861\u7b56\u7565\/\u8c03\u5ea6\u7b97\u6cd5\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u8c03\u5ea6\u7b97\u6cd5<\/strong><\/th>\n\u6982\u8ff0<\/strong><\/th>\n<\/tr>\n<\/thead>\n
\u8f6e\u8be2\uff08\u9ed8\u8ba4\uff09<\/td>\n\u6309\u65f6\u95f4\u987a\u5e8f\u9010\u4e00\u5206\u914d\u5230\u4e0d\u540c\u7684\u540e\u7aef\u670d\u52a1\u5668(\u9ed8\u8ba4)<\/td>\n<\/tr>\n
weight<\/td>\n\u52a0\u6743\u8f6e\u8be2,weight\u503c\u8d8a\u5927,\u5206\u914d\u5230\u7684\u8bbf\u95ee\u51e0\u7387\u8d8a\u9ad8<\/td>\n<\/tr>\n
ip_hash<\/td>\n\u6bcf\u4e2a\u8bf7\u6c42\u6309\u8bbf\u95eeIP\u7684hash\u7ed3\u679c\u5206\u914d,\u8fd9\u6837\u6765\u81ea\u540c\u4e00IP\u7684\u56fa\u5b9a\u8bbf\u95ee\u4e00\u4e2a\u540e\u7aef\u670d\u52a1\u5668<\/td>\n<\/tr>\n
url_hash<\/td>\n\u6309\u7167\u8bbf\u95eeURL\u7684hash\u7ed3\u679c\u6765\u5206\u914d\u8bf7\u6c42,\u662f\u6bcf\u4e2aURL\u5b9a\u5411\u5230\u540c\u4e00\u4e2a\u540e\u7aef\u670d\u52a1\u5668<\/td>\n<\/tr>\n
least_conn<\/td>\n\u6700\u5c11\u94fe\u63a5\u6570,\u54ea\u4e2a\u673a\u5668\u94fe\u63a5\u6570\u5c11\u5c31\u5206\u53d1<\/td>\n<\/tr>\n
fari<\/td>\n\u667a\u80fd\/\u516c\u5e73\u8c03\u5ea6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
1 rr\u8f6e\u8be2\uff08\u9ed8\u8ba4\uff09<\/p>\n
\u8f6e\u8be2\u65b9\u5f0f\uff0c\u4f9d\u6b21\u5c06\u8bf7\u6c42\u5206\u914d\u5230\u5404\u4e2a\u540e\u53f0\u670d\u52a1\u5668\u4e2d\uff0c\u9ed8\u8ba4\u7684\u8d1f\u8f7d\u5747\u8861\u7b56\u7565\u3002\r\n\r\n\u6bcf\u4e2a\u8bf7\u6c42\u6309\u65f6\u95f4\u987a\u5e8f\u9010\u4e00\u5206\u914d\u5230\u4e0d\u540c\u7684\u540e\u7aef\u670d\u52a1\u5668\uff0c\u5982\u679c\u540e\u7aef\u670d\u52a1\u5668 down \u6389\uff0c\u80fd\u81ea\u52a8\u5254\u9664\u3002\r\n\r\n\u9002\u7528\u4e8e\u540e\u53f0\u673a\u5668\u6027\u80fd\u4e00\u81f4\u7684\u60c5\u51b5\u3002\r\n\r\n\u793a\u4f8b\uff1a\u4e0d\u7528\u6307\u5b9a\uff0c\u9ed8\u8ba4\u5c31\u662frr\r\nhttp {\r\n    upstream backend {\r\n        server backend1.example.com;\r\n        server backend2.example.com;\r\n    }\r\n\r\n    server {\r\n        location \/ {\r\n            proxy_pass http:\/\/backend;\r\n        }\r\n    }\r\n}<\/code><\/pre>\n
2\u3001wrr\u52a0\u6743\u8f6e\u8be2<\/p>\n
\u6839\u636e\u6743\u91cd\u6765\u5206\u53d1\u8bf7\u6c42\u5230\u4e0d\u540c\u7684\u673a\u5668\u4e2d\uff0c\u6307\u5b9a\u8f6e\u8be2\u51e0\u7387\uff0c\u53c2\u6570 weight \u548c \u8bbf\u95ee\u6bd4\u7387\u6210\u6b63\u6bd4\u3002\r\n\r\n\u6743\u91cd\u8d8a\u9ad8\u7684\u670d\u52a1\u5668\u5b9e\u4f8b\uff0c\u5206\u62c5\u8d8a\u5927\u7684\u8d1f\u8f7d\u91cf\u3002\u6240\u4ee5\u786c\u4ef6\u914d\u7f6e\u8f83\u597d\u7684\u670d\u52a1\u5668\u5e94\u8be5\u8bbe\u7f6e\u8f83\u9ad8\u7684\u6743\u91cd\u3002\r\n\r\n\u9002\u7528\u4e8e\u540e\u7aef\u670d\u52a1\u5668\u6027\u80fd\u4e0d\u5747\u7684\u60c5\u51b5\u3002\r\n\r\n\u793a\u4f8b\uff1a\u6307\u5b9a\u6743\u91cd\uff0c\u5c31\u662fwrr\r\nhttp {\r\n    upstream backend {\r\n        server backend1.example.com weight=3;\r\n        server backend2.example.com weight=2;\r\n        server backend2.example.com weight=5;\r\n    }\r\n\r\n    server {\r\n        location \/ {\r\n            proxy_pass http:\/\/backend;\r\n        }\r\n    }\r\n}<\/code><\/pre>\n
3\u3001ip_hash<\/p>\n
\u6bcf\u4e2a\u8bf7\u6c42\u6309\u8bbf\u95ee IP \u7684\u54c8\u5e0c\u7ed3\u679c\u5206\u914d\uff0c\u4f7f\u6765\u81ea\u540c\u4e00\u4e2a IP \u7684\u8bbf\u5ba2\u56fa\u5b9a\u8bbf\u95ee\u4e00\u53f0\u540e\u7aef\u670d\u52a1\u5668\uff0c\u5e76\u4e14\u53ef\u4ee5\u6709\u6548\u89e3\u51b3\u52a8\u6001\u7f51\u9875\u5b58\u5728\u7684 session \u5171\u4eab\u95ee\u9898\u3002\u4fd7\u79f0IP\u7ed1\u5b9a\u3002\r\n\r\n\u4f18\u52bf\uff1a\u5728\u5904\u7406\u9700\u8981\u4f1a\u8bdd\u4fdd\u6301\uff08session persistence\uff09\u7684\u8bf7\u6c42\u65f6\uff0c\u4f7f\u7528ip_hash\u975e\u5e38\u6709\u7528\u3002\r\n\u5c40\u9650\u6027\uff1a\u56fa\u5b9a\u670d\u52a1\u5668\u5b9e\u4f8b\u5982\u679c\u5b95\u673a\uff0c\u90a3\u4e48\u8fd9\u53f0\u670d\u52a1\u5668\u4e0a\u4fdd\u5b58\u7684 Session \u4fe1\u606f\u4f1a\u4e22\u5931\u3002\r\n\r\n\u793a\u4f8b\uff1a\u8d1f\u8f7d\u5747\u8861\u7b56\u7565\uff1aip_hash\uff0c\u56fa\u5b9aip\u7531\u56fa\u5b9a\u670d\u52a1\u5668\u5b9e\u4f8b\u5904\u7406\r\nhttp {\r\n    upstream backend {\r\n        ip_hash;\r\n        server backend1.example.com;\r\n        server backend2.example.com;\r\n    }\r\n\r\n    server {\r\n        location \/ {\r\n            proxy_pass http:\/\/backend;\r\n        }\r\n    }\r\n}\r\n\u6d4b\u8bd5\u7684\u4f7f\u7528\u5efa\u8bae\u7528curl\u547d\u4ee4\u8fdb\u884c\u6d4b\u8bd5\uff0c\u89c4\u907f\u6d4f\u89c8\u5668\u7f13\u5b58\u5e26\u6765\u7684\u5f71\u54cd<\/code><\/pre>\n
4 url_hash<\/p>\n
\u6309\u8bbf\u95ee\u7684 URL \u7684\u54c8\u5e0c\u7ed3\u679c\u6765\u5206\u914d\u8bf7\u6c42\uff0c\u4f7f\u6bcf\u4e2a URL \u5b9a\u5411\u5230\u4e00\u53f0\u540e\u7aef\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u540e\u7aef\u7f13\u5b58\u670d\u52a1\u5668\u7684\u6548\u7387\u3002\r\n\r\nNginx \u672c\u8eab\u4e0d\u652f\u6301 url_hash\uff0c\u5982\u679c\u9700\u8981\u8fd9\u79cd\u8c03\u5ea6\u7b97\u6cd5\uff0c\u5219\u5fc5\u987b\u5b89\u88c5\u5e76\u542f\u7528nginx-sticky-module\u6a21\u5757\u3002\r\n\u5b89\u88c5\u4e0e\u4f7f\u7528\uff1ahttps:\/\/egonlin.com\/?p=9444\r\n\r\n\u793a\u4f8b\r\nhttp {\r\n    upstream backend {\r\n        sticky path;\r\n        server backend1.example.com;\r\n        server backend2.example.com;\r\n    }\r\n\r\n    server {\r\n        location \/ {\r\n            proxy_pass http:\/\/backend;\r\n        }\r\n    }\r\n}<\/code><\/pre>\n
5\u3001least_conn<\/p>\n
upstream backend {\r\n    least_conn;\r\n    server backend1.example.com;\r\n    server backend2.example.com;\r\n}\r\n\u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d\uff0cNginx\u4f1a\u628a\u6bcf\u4e2a\u65b0\u8bf7\u6c42\u4f20\u9001\u5230\u6d3b\u8dc3\u8fde\u63a5\u6570\u91cf\u6700\u5c11\u7684\u670d\u52a1\u5668\u3002\r\n\u7136\u800c\uff0c\u6709\u4e00\u70b9\u9700\u8981\u6ce8\u610f\uff0c\u867d\u7136 least_conn \u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u5904\u7406\u80fd\u529b\uff0c\u4f46\u5b83\u5e76\u4e0d\u662f\u6240\u6709\u60c5\u51b5\u4e0b\u7684\u6700\u4f73\u9009\u62e9\u3002\u6bd4\u5982\u5f53\u670d\u52a1\u5668\u5904\u7406\u8bf7\u6c42\u7684\u901f\u5ea6\u5dee\u5f02\u5f88\u5927\u65f6\uff0c\u6700\u5feb\u7684\u670d\u52a1\u5668\u53ef\u80fd\u4f1a\u6536\u5230\u66f4\u591a\u7684\u8bf7\u6c42\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6700\u5feb\u7684\u670d\u52a1\u5668\u8fc7\u8f7d\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u4e1a\u52a1\u9700\u6c42\u548c\u540e\u7aef\u670d\u52a1\u5668\u7684\u80fd\u529b\uff0c\u9009\u62e9\u5176\u4ed6\u7684\u8d1f\u8f7d\u5747\u8861\u7b56\u7565\uff0c\u4f8b\u5982\u8f6e\u8be2\u6216\u8005\u6743\u91cd\u3002<\/code><\/pre>\n
6\u3001\u516c\u5e73\u8c03\u5ea6\u7b97\u6cd5\uff08fair\uff09<\/p>\n
fair\u91c7\u7528\u7684\u4e0d\u662f\u5185\u5efa\u8d1f\u8f7d\u5747\u8861\u4f7f\u7528\u7684\u8f6e\u6362\u7684\u5747\u8861\u7b97\u6cd5\uff0c\u800c\u662f\u53ef\u4ee5\u6839\u636e\u9875\u9762\u5927\u5c0f\u3001\u52a0\u8f7d\u65f6\u95f4\u957f\u77ed\u667a\u80fd\u7684\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\u3002\u00a0\r\n\r\nNginx \u672c\u8eab\u4e0d\u652f\u6301 fair\uff0c\u5982\u679c\u9700\u8981\u8fd9\u79cd\u8c03\u5ea6\u7b97\u6cd5\uff0c\u8fd9\u9700\u8981\u5b89\u88c5\u5e76\u542f\u7528nginx_upstream_fair\u6a21\u5757\u3002\r\n\u5b89\u88c5\u4e0e\u542f\u7528\u89c1\uff1ahttps:\/\/egonlin.com\/?p=9447\r\n\r\n\u793a\u4f8b\r\nhttp {\r\n    upstream backend {\r\n        server backend1.example.com;\r\n        server backend2.example.com;\r\n        fair;\r\n    }\r\n\r\n    server {\r\n        location \/ {\r\n            proxy_pass http:\/\/backend;\r\n        }\r\n    }\r\n}<\/code><\/pre>\n
1.4 \u5176\u4ed6<\/h2>\n
# \u8d1f\u8f7d\u5747\u8861\u7684\u53eb\u6cd5\r\n1.\u8d1f\u8f7d\u5747\u8861\r\n2.\u8d1f\u8f7d\r\n3.LB\r\n4.Load Balance\r\n\r\n# \u516c\u6709\u4e91\u4e2d\u5e38\u89c1\u7684\u8d1f\u8f7d\u5747\u8861\r\n1.SLB       #\u963f\u91cc\u4e91\u4ea7\u54c1\r\n2.LB        #\u9752\u4e91\u4ea7\u54c1\r\n3.CLB       #\u817e\u8baf\u4e91\u4ea7\u54c1\r\n4.ULB       #Ucloud\u4ea7\u54c1\r\n\r\n# \u8d1f\u8f7d\u5747\u8861\u8f6f\u4ef6\r\n1.nginx\r\n2.Haproxy\r\n3.LVS\r\n\r\n# \u8d1f\u8f7d\u5747\u8861\u7684\u5206\u7c7b\uff1a\u56db\u5c42\u4e0e\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861\r\n\u590d\u4e60\u89c1\uff1ahttps:\/\/egonlin.com\/?cat=44<\/code><\/pre>\n
\u4e8c\u3001\u8d1f\u8f7d\u5747\u8861\u7684\u5065\u5eb7\u68c0\u67e5\uff08\u6269\u5c55\uff09<\/h1>\n
2.1 \u4ec0\u4e48\u662f\u5065\u5eb7\u68c0\u67e5<\/h2>\n
\u5065\u5eb7\u68c0\u67e5\u5c31\u662f\u8d1f\u8f7d\u5747\u8861\u5668\u5bf9\u540e\u53f0\u7684\u8282\u70b9\u5468\u671f\u6027\u8fdb\u884c\u5b58\u6d3b\u6027\u68c0\u67e5
\n\u8fd9\u53ef\u4ee5\u5728\u786e\u4fdd\u7528\u6237\u8bf7\u6c42\u5230\u6765\u4e4b\u524d\uff0c\u5c31\u53ca\u65f6\u53d1\u73b0\u95ee\u9898\u8282\u70b9\u5e76\u5254\u9664\uff0c\u4ee5\u6b64\u63d0\u5347\u7528\u6237\u8bbf\u95ee\u4f53\u9a8c<\/p>\n
2.2 \u5065\u5eb7\u68c0\u67e5\u7684\u610f\u4e49<\/h2>\n
\u4e4b\u524d\u4f60\u5b66\u4e60\u7684\u53ef\u4ee5\u5728upstream\u6a21\u5757\u5185\u7684ip\uff1aport\u540e\u52a0\u7684\u4e00\u4e9bmax_fails\u3001fail_timeout\u53c2\u6570\uff0c\u9488\u5bf9\u7684\u90fd\u662f\u7528\u6237\u8bf7\u6c42\u8fdb\u6765\u4e4b\u540e\uff0c\u8d1f\u8f7d\u5747\u8861\u53bb\u5c1d\u8bd5\u8bbf\u95ee\u67d0\u4e2a\u8282\u70b9\u800c\u5c1d\u8bd5\u5931\u8d25\u7684\u6b21\u6570\u4e0e\u505c\u7528\u8bd5\u9a8c\uff0c\u4e00\u5207\u90fd\u662f\u53d1\u751f\u5728\u7528\u6237\u8bf7\u6c42\u6765\u7684\u65f6\u5019\uff0c\u8d1f\u8f7d\u5747\u8861\u672c\u8eab\u5e76\u4e0d\u77e5\u9053\u540e\u7aef\u8282\u70b9\u662f\u6d3b\u7740\u7684\u8fd8\u662f\u6b7b\u4e86\u7684\uff0c\u53ea\u80fd\u8bd5\uff0c\u5982\u679c\u8282\u70b9\u662f\u6302\u6389\u7684\uff0c\u4f60\u5c1d\u8bd5\u8fd9\u51e0\u6b21\u672c\u8eab\u5c31\u662f\u8017\u8d39\u65f6\u95f4\u7684\u3002
\n\u6240\u4ee5\uff0c\u80fd\u4e0d\u80fd\u5728\u7528\u6237\u8bf7\u6c42\u6765\u4e4b\u524d\uff0c\u4f60\u8d1f\u8f7d\u5747\u8861\u5c31\u63d0\u524d\u80fd\u53d1\u73b0\u4e00\u4e9b\u8282\u70b9\u4e0d\u53ef\u7528\u4e86\uff0c\u5982\u6b64\uff0c\u8bf7\u6c42\u4fbf\u8fde\u8bd5\u90fd\u6ca1\u6709\u8bd5\u7684\u5fc5\u8981\u4e86\uff0c\u7528\u6237\u8bbf\u95ee\u4f53\u9a8c\u66f4\u5feb\u554a\uff0c\u8fd9\u4e2a\u5c31\u662f\u5065\u5eb7\u68c0\u67e5\u7684\u5173\u952e\u610f\u4e49<\/p>\n
\u7ec6\u8bf4\u6ca1\u6709\u5065\u5eb7\u5065\u5eb7\u60c5\u51b5\u4e0b\u7684\u95ee\u9898
\n1\u3001\u6545\u969c\u8282\u70b9\u65e0\u6cd5\u53d1\u73b0\uff1a\u5065\u5eb7\u68c0\u67e5\u7684\u4e00\u4e2a\u4e3b\u8981\u4f5c\u7528\u5c31\u662f\u80fd\u591f\u68c0\u6d4b\u670d\u52a1\u662f\u5426\u53ef\u7528\u3002\u5982\u679c\u6ca1\u6709\u5065\u5eb7\u68c0\u67e5\uff0c\u6545\u969c\u6216\u8005\u5f02\u5e38\u7684\u8282\u70b9\u53ef\u80fd\u65e0\u6cd5\u53ca\u65f6\u53d1\u73b0\uff0c\u7ee7\u7eed\u5c06\u8bf7\u6c42\u8def\u7531\u5230\u8fd9\u6837\u7684\u8282\u70b9\uff0c\u4f1a\u5bfc\u81f4\u8bf7\u6c42\u5931\u8d25\uff0c\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u3002
\n2\u3001\u663e\u8457\u5f71\u54cd\u6027\u80fd\uff1a\u5982\u679c\u8bf7\u6c42\u88ab\u5206\u53d1\u5230\u4e86\u4e00\u4e2a\u6545\u969c\u6216\u5df2\u5173\u95ed\u7684\u670d\u52a1\u5668\uff0c\u90a3\u4e48\u8be5\u8bf7\u6c42\u4f1a\u5931\u8d25\u6216\u8005\u8d85\u65f6\uff0c\u8fd9\u5c06\u663e\u8457\u5f71\u54cd\u7cfb\u7edf\u7684\u6027\u80fd\uff0c\u5e76\u53ef\u80fd\u5bfc\u81f4\u5176\u4ed6\u670d\u52a1\u7684\u5ef6\u8fdf\u589e\u52a0\u3002
\n3\u3001\u8d1f\u8f7d\u5206\u914d\u4e0d\u5747\u8861\uff1a\u6ca1\u6709\u5065\u5eb7\u68c0\u67e5\uff0c\u8d1f\u8f7d\u5747\u8861\u5668\u53ef\u80fd\u4f1a\u628a\u8bf7\u6c42\u53d1\u5230\u65e0\u6cd5\u5904\u7406\u8bf7\u6c42\u7684\u670d\u52a1\u5668\u4e0a\uff0c\u4f7f\u5176\u4ed6\u5065\u5eb7\u7684\u670d\u52a1\u5668\u8d1f\u8f7d\u589e\u52a0\uff0c\u8d1f\u8f7d\u5206\u914d\u4e0d\u5747\uff0c\u5f71\u54cd\u670d\u52a1\u7684\u6548\u7387\u3002
\n4\u3001\u5f71\u54cd\u6574\u4f53\u7cfb\u7edf\u7a33\u5b9a\u6027\uff1a\u7531\u4e8e\u65e0\u6cd5\u53ca\u65f6\u53d1\u73b0\u5e76\u9694\u79bb\u6545\u969c\u8282\u70b9\uff0c\u53ef\u80fd\u51fa\u73b0\u4e00\u8fde\u4e32\u7684\u95ee\u9898\uff0c\u6700\u540e\u751a\u81f3\u53ef\u80fd\u5bfc\u81f4\u6574\u4e2a\u7cfb\u7edf\u51fa\u73b0\u4e25\u91cd\u6545\u969c\u6216\u8005\u762b\u75ea\u3002
\n5\u3001\u5f71\u54cd\u8fd0\u7ef4\u6548\u7387\uff1a\u6ca1\u6709\u5065\u5eb7\u68c0\u67e5\uff0c\u8fd0\u7ef4\u4eba\u5458\u9700\u8981\u624b\u52a8\u53bb\u68c0\u67e5\u6bcf\u4e2a\u670d\u52a1\u8282\u70b9\u7684\u72b6\u6001\uff0c\u8fd9\u65e0\u7591\u4f1a\u5927\u5927\u589e\u52a0\u8fd0\u7ef4\u7684\u96be\u5ea6\u548c\u5de5\u4f5c\u91cf\uff0c\u964d\u4f4e\u8fd0\u7ef4\u6548\u7387<\/p>\n
\u8d1f\u8f7d\u5747\u8861\u7684\u5065\u5eb7\u68c0\u67e5\u5c31\u662f\u7528\u6765\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\u7684<\/p>\n
2.3 nginx\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u5982\u4f55\u589e\u52a0\u5065\u5eb7\u68c0\u67e5\u529f\u80fd<\/h2>\n
\u5728Nginx\u5b98\u65b9\u6a21\u5757\u63d0\u4f9b\u7684\u6a21\u5757\u4e2d\uff0c\u6ca1\u6709\u5bf9\u8d1f\u8f7d\u5747\u8861\u540e\u7aef\u8282\u70b9\u7684\u5065\u5eb7\u68c0\u67e5\u6a21\u5757\uff0c\u4f46\u53ef\u4ee5\u4f7f\u7528\u7b2c\u4e09\u65b9\u6a21\u5757\u3002
\nnginx_upstream_check_module\u6765\u68c0\u6d4b\u540e\u7aef\u670d\u52a1\u7684\u5065\u5eb7\u72b6\u6001\u3002<\/p>\n
\u8be5\u6a21\u5757\u4f5c\u7528\r\n1\u3001\u6545\u969c\u6392\u9664\uff1a\u5065\u5eb7\u68c0\u67e5\u53ef\u4ee5\u5feb\u901f\u68c0\u6d4b\u5230\u540e\u7aef\u670d\u52a1\u5668\u662f\u5426\u51fa\u73b0\u6545\u969c\uff0c\u5982\u679c\u67d0\u4e2a\u540e\u7aef\u670d\u52a1\u5668\u51fa\u73b0\u6545\u969c\uff0c\u90a3\u4e48\u8d1f\u8f7d\u5747\u8861\u5668\u53ef\u4ee5\u5c06\u5176\u4ece\u670d\u52a1\u6c60\u4e2d\u79fb\u9664\uff0c\u8fd9\u6837\u7528\u6237\u7684\u8bf7\u6c42\u5c31\u4e0d\u4f1a\u88ab\u8def\u7531\u5230\u6545\u969c\u7684\u670d\u52a1\u5668\u4e0a\uff0c\u63d0\u9ad8\u4e86\u670d\u52a1\u7684\u53ef\u7528\u6027\u3002\r\n2\u3001\u5bbd\u5bb9\u5904\u7406\uff1a\u9664\u4e86\u80fd\u591f\u79fb\u9664\u6545\u969c\u7684\u670d\u52a1\u5668\uff0c\u5065\u5eb7\u68c0\u67e5\u8fd8\u53ef\u4ee5\u81ea\u52a8\u76d1\u6d4b\u5230\u6062\u590d\u6b63\u5e38\u7684\u670d\u52a1\u5668\uff0c\u5e76\u5c06\u5b83\u4eec\u91cd\u65b0\u52a0\u5165\u5230\u670d\u52a1\u6c60\u4e2d\u3002\u8fd9\u6837\u505a\u6709\u52a9\u4e8e\u63d0\u9ad8\u7cfb\u7edf\u7684\u5bb9\u9519\u6027\uff0c\u9632\u6b62\u670d\u52a1\u56e0\u5355\u70b9\u95ee\u9898\u800c\u5b8c\u5168\u4e2d\u65ad\u3002<\/code><\/pre>\n
1.\u5b89\u88c5\u4f9d\u8d56<\/h3>\n
[root@lb02 ~]# yum install -y gcc glibc gcc-c++ pcre-devel openssl-devel patch<\/code><\/pre>\n
2.\u4e0b\u8f7d\u7b2c\u4e09\u65b9\u6a21\u5757<\/h3>\n
[root@lb02 ~]# wget http:\/\/nginx.org\/download\/nginx-1.14.2.tar.gz\r\n[root@lb02 ~]# wget https:\/\/github.com\/yaoweibin\/nginx_upstream_check_module\/archive\/master.zip<\/code><\/pre>\n
3.\u89e3\u538b\u53ca\u5b89\u88c5<\/h3>\n
[root@lb02 ~]# tar xf nginx-1.14.2.tar.gz\r\n[root@lb02 ~]# unzip master.zip<\/code><\/pre>\n
4.\u8fdb\u5165nginx\u76ee\u5f55\uff0c\u6253\u8865\u4e01(nginx\u7684\u7248\u672c\u662f1.14\u8865\u4e01\u5c31\u9009\u62e91.14\u7684,p1\u4ee3\u8868\u5728nginx\u76ee\u5f55\uff0cp0\u662f\u4e0d\u5728nginx\u76ee\u5f55)<\/h3>\n
[root@lb02 ~]# cd nginx-1.14.2\/\r\n\r\n[root@lb02 nginx-1.14.2]# patch -p1 <..\/nginx_upstream_check_module-master\/check_1.14.0+.patch\r\n\r\n[root@lb02 nginx-1.14.2]# .\/configure --prefix=\/etc\/nginx --sbin-path=\/usr\/sbin\/nginx --modules-path=\/usr\/lib64\/nginx\/modules --conf-path=\/etc\/nginx\/nginx.conf --error-log-path=\/var\/log\/nginx\/error.log --http-log-path=\/var\/log\/nginx\/access.log --pid-path=\/var\/run\/nginx.pid --lock-path=\/var\/run\/nginx.lock --http-client-body-temp-path=\/var\/cache\/nginx\/client_temp --http-proxy-temp-path=\/var\/cache\/nginx\/proxy_temp --http-fastcgi-temp-path=\/var\/cache\/nginx\/fastcgi_temp --http-uwsgi-temp-path=\/var\/cache\/nginx\/uwsgi_temp --http-scgi-temp-path=\/var\/cache\/nginx\/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --add-module=\/root\/nginx_upstream_check_module-master --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie'\r\n\r\n[root@lb02 nginx-1.14.2]# make && make install<\/code><\/pre>\n
5.\u5728\u5df2\u6709\u7684\u8d1f\u8f7d\u5747\u8861\u4e0a\u589e\u52a0\u5065\u5eb7\u68c0\u67e5\u7684\u529f\u80fd<\/h3>\n
[root@lb01 conf.d]# cat proxy_web.conf\r\nupstream web {\r\n    server 172.16.1.7:80 max_fails=2 fail_timeout=10s;\r\n    server 172.16.1.8:80 max_fails=2 fail_timeout=10s;\r\n    check interval=3000 rise=2 fall=3 timeout=1000 type=tcp;\r\n    #interval  \u68c0\u6d4b\u95f4\u9694\u65f6\u95f4\uff0c\u5355\u4f4d\u4e3a\u6beb\u79d2\r\n    #rise      \u8868\u793a\u8bf7\u6c422\u6b21\u6b63\u5e38\uff0c\u6807\u8bb0\u6b64\u540e\u7aef\u7684\u72b6\u6001\u4e3aup\r\n    #fall      \u8868\u793a\u8bf7\u6c423\u6b21\u5931\u8d25\uff0c\u6807\u8bb0\u6b64\u540e\u7aef\u7684\u72b6\u6001\u4e3adown\r\n    #type      \u7c7b\u578b\u4e3atcp\r\n    #timeout   \u8d85\u65f6\u65f6\u95f4\uff08\u8fbe\u5230\u5931\u8d25\u6b21\u6570\u540e\uff0ctimeout\u65f6\u95f4\u5185\u4e0d\u4f1a\u88ab\u8c03\u5ea6\uff09\uff0c\u5355\u4f4d\u4e3a\u6beb\u79d2\r\n}\r\n\r\nserver {\r\n    listen 80;\r\n    server_name linux.lb.com;\r\n    location \/ {\r\n        proxy_pass http:\/\/web;\r\n        include proxy_params; # \u8be5\u884c\u6307\u7684\u662f\u5f15\u5165\u4ee3\u7406\u914d\u7f6e\u53c2\u6570\u6587\u4ef6\uff0c\u5982\u679c\u62a5\u9519\u627e\u4e0d\u5230\u8be5\u6587\u4ef6\uff0c\u90a3\u8be5\u884c\u6ce8\u91ca\u5c31\u884c<\/span>\r\n    }\r\n\r\n    location \/upstream_check {\r\n        check_status;\r\n    }\r\n}<\/code><\/pre>\n
6.\u91cd\u542f\u8bbf\u95ee\u9875\u9762<\/h3>\n
#\u91cd\u542f\r\n#\u914d\u7f6ehosts\r\n#\u8bbf\u95ee\r\nhttp:\/\/linux.lb.com\/upstream_check<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001upstream\u6a21\u5757\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861 1.1 \u8d1f\u8f7d\u5747\u8861\u914d\u7f6e upstream\u5728http\u5757\u5185\uff0c\u4e0eserver\u5757\u5e76 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/9547"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9547"}],"version-history":[{"count":11,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/9547\/revisions"}],"predecessor-version":[{"id":11073,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/9547\/revisions\/11073"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9547"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}