{"id":495,"date":"2017-11-29T16:30:33","date_gmt":"2017-11-29T08:30:33","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=495"},"modified":"2017-11-29T16:30:33","modified_gmt":"2017-11-29T08:30:33","slug":"nginx-%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1%e9%9b%86%e7%be%a4%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88-healthcheck_nginx_upstreams-%e4%b8%80","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=495","title":{"rendered":"nginx \u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4\u89e3\u51b3\u65b9\u6848 healthcheck_nginx_upstreams (\u4e00)"},"content":{"rendered":"

\u8be5\u6587\u7ae0\u6765\u6e90\u4e8e\u4e92\u8054\u7f51\uff0c\u76ee\u524d\u627e\u4e0d\u5230\u539f\u4f5c\u8005\uff0c\u653e\u5728\u8fd9\u91cc\u7684\u76ee\u7684\u662f\u8bb0\u5f55healthcheck_nginx_upstreams<\/a><\/span>\u00a0\u7684\u5b89\u88c5\u8fc7\u7a0b\u548c\u76f8\u5173\u914d\u7f6e\uff0c\u5728\u8d77<\/span>\u521d\u5b89\u88c5\u6210\u529f\u540e\u4e0d\u80fd\u591f\u6b63\u5e38\u8fd0\u884chealthcheck_nginx_upstreams\uff0c\u540e\u901a\u8fc7\u9605\u8bfb\u6e90\u7801\u548c\u8c03\u8bd5\uff0c\u80fd\u591f\u6b63\u5e38\u8fd0\u884c\u3002<\/span><\/p>\n

\u4e0d\u8fc7\u4fe1\u606f\u5982\u4e0b\uff1a<\/span><\/p>\n

\n
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[html]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n
<\/embed><\/div>\n<\/div>\n<\/div>\n
    \n
  1. *26\u00a0no\u00a0live\u00a0upstreams\u00a0while\u00a0connecting\u00a0to\u00a0upstream<\/li>\n<\/ol>\n<\/div>\n

     <\/p>\n

    Nginx\u662f\u4e00\u4e2a\u514d\u8d39\u7684\uff0c\u5f00\u6e90\u7684\uff0c\u9ad8\u6027\u80fd\u7684\u670d\u52a1\u5668\u548c\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u8f6f\u4ef6\uff0c\u540c\u65f6\u5b83\u4e5f\u53ef\u4ee5\u4e3aIMAP\u548cPOP3\u670d\u52a1\u5668\u4ee3\u7406\uff0c\u4ee5\u5176\u9ad8\u6027\u80fd\uff0c\u7a33\u5b9a\u6027\uff0c\u4e30\u5bcc\u7684\u529f\u80fd\uff0c\u7ed3\u6784\u7b80\u5355\uff0c\u4f4e\u8d44\u6e90\u6d88\u8017\u7684\u7279\u6027\u6362\u6765\u5e7f\u5927\u8fd0\u7ef4\u8005\u6240\u559c\u7231\u3002<\/p>\n

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    <\/div>\n
    Nginx\u7684\u53cd\u5411\u4ee3\u7406\uff1a<\/div>\n
    \u53cd\u5411\u4ee3\u7406\u6307\u4ee5\u4ee3\u7406\u670d\u52a1\u5668\u6765\u63a5\u53d7Internet\u4e0a\u7684\u8fde\u63a5\u8bf7\u6c42\uff0c\u7136\u540e\u5c06\u8bf7\u6c42\u8f6c\u53d1\u7ed9\u5185\u90e8\u7f51\u7edc\u4e0a\u7684\u670d\u52a1\u5668\uff0c\u5e76\u5c06\u4ece\u670d\u52a1\u5668\u4e0a\u5f97\u5230\u7684\u7ed3\u679c\u8fd4\u56de\u7ed9Internet\u4e0a\u8bf7\u6c42\u8fde\u63a5\u5230\u5ba2\u6237\u7aef\uff0c\u6b64\u65f6\u4ee3\u7406\u670d\u52a1\u5668\u5bf9\u5916\u5c31\u8868\u73b0\u4e3a\u4e00\u4e2a\u670d\u52a1\u5668\uff0c\u800c\u6b64\u79cd\u5de5\u4f5c\u6a21\u5f0f\u7c7b\u4f3c\u4e8eLVS-NET\u6a21\u578b\u3002<\/div>\n
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    <\/div>\n
    \u53cd\u5411\u4ee3\u7406\u7684\u5de5\u4f5c\u6d41\u7a0b\uff1a<\/div>\n
    1\uff09\u7528\u6237\u901a\u8fc7\u57df\u540d\u53d1\u51fa\u8bbf\u95ee\u8bf7\u6c42\uff0c\u8be5\u57df\u540d\u88ab\u89e3\u6790\u4e3a\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u7684IP\u5730\u5740\uff1b<\/div>\n
    2\uff09\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u63a5\u6536\u7528\u6237\u7684\u8bf7\u6c42\uff1b<\/div>\n
    3\uff09\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u5728\u672c\u5730\u7f13\u5b58\u67e5\u627e\u662f\u5426\u5b58\u5728\u5f53\u524d\u7528\u6237\u6240\u8bf7\u6c42\u7684\u5185\u5bb9\uff0c\u627e\u5230\u5219\u76f4\u63a5\u628a\u5185\u5bb9\u8fd4\u56de\u7ed9\u7528\u6237\uff1b<\/div>\n
    4\uff09\u5982\u679c\u672c\u5730\u6ca1\u6709\u7528\u6237\u8bf7\u6c42\u7684\u5185\u5bb9\uff0c\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u4f1a\u4ee5\u81ea\u5df1\u7684\u8eab\u4efd\u53bb\u540e\u7aef\u670d\u52a1\u5668\u8bf7\u6c42\u540c\u6837\u7684\u4fe1\u606f\u5185\u5bb9\uff0c\u5e76\u628a\u4fe1\u606f\u5185\u5bb9\u53d1\u7ed9\u7528\u6237\uff0c\u5982\u679c\u4fe1\u606f\u5185\u5bb9\u662f\u53ef\u4ee5\u88ab\u7f13\u5b58\u7684\uff0c\u5219\u4f1a\u5c06\u8be5\u5185\u5bb9\u7f13\u5b58\u5728\u4ee3\u7406\u670d\u52a1\u5668\u7684\u672c\u5730\u7f13\u5b58\u4e2d\u3002<\/div>\n
    <\/div>\n
    \u53cd\u5411\u4ee3\u7406\u7684\u597d\u5904\uff1a<\/div>\n
    1\uff09\u89e3\u51b3\u4e86\u7f51\u7ad9\u670d\u52a1\u5668\u5bf9\u5916\u53ef\u89c1\u7684\u95ee\u9898\uff0c\u63d0\u9ad8\u4e86\u7f51\u7ad9\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\uff1b<\/div>\n
    2\uff09\u8282\u7ea6\u4e86\u6709\u9650\u7684IP\u5730\u5740\u8d44\u6e90\uff0c\u540e\u7aef\u670d\u52a1\u5668\u5747\u53ef\u4f7f\u7528\u79c1\u6709IP\u5730\u5740\u4e0e\u4ee3\u7406\u670d\u52a1\u5668\u8fdb\u884c\u901a\u4fe1\uff1b<\/div>\n
    3\uff09\u52a0\u901f\u4e86\u7f51\u7ad9\u7684\u8bbf\u95ee\u901f\u5ea6\uff0c\u51cf\u8f7b\u4e86\u771f\u662fweb\u670d\u52a1\u5668\u7684\u8d1f\u8377\u3002<\/div>\n
    <\/div>\n
    (\u4e00)\u3001\u8c03\u5ea6\u7b97\u6cd5<\/div>\n
    Nginx\u7684upstream\u6307\u4ee4\u7528\u4e8e\u6307\u5b9aproxy_pass\u548cfastcgi_pass\u6240\u4f7f\u7528\u7684\u540e\u7aef\u670d\u52a1\u5668\uff0c\u5373nginx\u7684\u53cd\u5411\u4ee3\u7406\u529f\u80fd\uff0c\u56e0\u6b64\u53ef\u4ee5\u5c06\u4e24\u8005\u7ed3\u5408\u8d77\u6765\u4f7f\u7528\u4ee5\u8fbe\u5230\u8d1f\u8f7d\u5747\u8861\u7684\u76ee\u7684\uff0c\u800cNginx\u4e5f\u652f\u6301\u591a\u79cd\u8c03\u5ea6\u7b97\u6cd5\uff1a<\/div>\n
    1\u3001\u8f6e\u8be2\uff08\u9ed8\u8ba4\uff09<\/div>\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\u5668down\u6389\uff0c\u5219\u4f1a\u8df3\u8fc7\u8be5\u670d\u52a1\u5668\u5206\u914d\u81f3\u4e0b\u4e00\u4e2a\u76d1\u63a7\u7684\u670d\u52a1\u5668\u3002\u5e76\u4e14\u5b83\u65e0\u9700\u8bb0\u5f55\u5f53\u524d\u6240\u6709\u8fde\u63a5\u7684\u72b6\u6001\uff0c\u6240\u4ee5\u5b83\u662f\u4e00\u79cd\u65e0\u72b6\u6001\u8c03\u5ea6\u3002<\/div>\n
    2\u3001weight<\/div>\n
    \u6307\u5b9a\u5728\u8f6e\u8be2\u7684\u57fa\u7840\u4e0a\u52a0\u4e0a\u6743\u91cd\uff0cweight\u548c\u8bbf\u95ee\u6bd4\u7387\u6210\u6b63\u6bd4\uff0c\u5373\u7528\u4e8e\u8868\u660e\u540e\u7aef\u670d\u52a1\u5668\u7684\u6027\u80fd\u597d\u574f\uff0c\u82e5\u540e\u7aef\u670d\u52a1\u5668\u6027\u80fd\u8f83\u597d\u5219\u53ef\u5c06\u5927\u90e8\u5206\u8bf7\u6c42\u5206\u914d\u7ed9\u5b83\uff0c\u5df2\u5b9e\u73b0\u5176\u529b\u6240\u80fd\u53ca\u3002<\/div>\n
    \u4f8b\u5982\uff1a<\/div>\n
    \u6211\u540e\u7aef\u670d\u52a1\u5668172.23.136.148\u914d\u7f6e\uff1aE5520*2 CPU\uff0c8G\u5185\u5b58<\/div>\n
    \u540e\u7aef\u670d\u52a1\u5668172.23.136.148\u914d\u7f6e\uff1aXeon(TM)2.80GHz * 2\uff0c4G\u5185\u5b58<\/div>\n
    \u6211\u5e0c\u671b\u5728\u670930\u4e2a\u8bf7\u6c42\u5230\u8fbe\u524d\u7aef\u65f6\uff0c\u5176\u4e2d20\u4e2a\u8bf7\u6c42\u4ea4\u7ed9172.23.136.148\u5904\u7406\uff0c\u5269\u4f5910\u4e2a\u8bf7\u6c42\u4ea4\u7ed9172.23.136.149\u5904\u7406\uff0c\u5c31\u53ef\u505a\u5982\u4e0b\u914d\u7f6e<\/div>\n
    upstream web_poll {<\/div>\n
    server 172.23.136.148 weight=10;<\/div>\n
    server 172.23.136.149 weight=5;<\/div>\n
    }<\/div>\n
    3\u3001ip_hash<\/div>\n
    \u6bcf\u4e2a\u8bf7\u6c42\u6309\u8bbf\u95eeip\u7684hash\u7ed3\u679c\u5206\u914d\uff0c\u5f53\u65b0\u7684\u8bf7\u6c42\u5230\u8fbe\u65f6\uff0c\u5148\u5c06\u5176\u5ba2\u6237\u7aefIP\u901a\u8fc7\u54c8\u5e0c\u7b97\u6cd5\u8fdb\u884c\u54c8\u5e0c\u51fa\u4e00\u4e2a\u503c\uff0c\u5728\u968f\u540e\u7684\u8bf7\u6c42\u5ba2\u6237\u7aefIP\u7684\u54c8\u5e0c\u503c\u53ea\u8981\u76f8\u540c\uff0c\u5c31\u4f1a\u88ab\u5206\u914d\u81f3\u540c\u4e00\u4e2a\u540e\u7aef\u670d\u52a1\u5668\uff0c\u8be5\u8c03\u5ea6\u7b97\u6cd5\u53ef\u4ee5\u89e3\u51b3session\u7684\u95ee\u9898\uff0c\u4f46\u6709\u65f6\u4f1a\u5bfc\u81f4\u5206\u914d\u4e0d\u5747\u5373\u65e0\u6cd5\u4fdd\u8bc1\u8d1f\u8f7d\u5747\u8861\u3002<\/div>\n
    \u4f8b\u5982\uff1a<\/div>\n
    upstream web_pool {<\/div>\n
    ip_hash;<\/div>\n
    server 172.23.136.148:80;<\/div>\n
    server 172.23.136.149:80;<\/div>\n
    }<\/div>\n
    4\u3001fair\uff08\u7b2c\u4e09\u65b9\uff09<\/div>\n
    \u6309\u540e\u7aef\u670d\u52a1\u5668\u7684\u54cd\u5e94\u65f6\u95f4\u6765\u5206\u914d\u8bf7\u6c42\uff0c\u54cd\u5e94\u65f6\u95f4\u77ed\u7684\u4f18\u5148\u5206\u914d\u3002<\/div>\n
    upstream web_pool {<\/div>\n
    server 172.23.136.148;<\/div>\n
    server 172.23.136.149;<\/div>\n
    fair;<\/div>\n
    }<\/div>\n
    5\u3001url_hash\uff08\u7b2c\u4e09\u65b9\uff09<\/div>\n
    \u6309\u8bbf\u95eeurl\u7684hash\u7ed3\u679c\u6765\u5206\u914d\u8bf7\u6c42\uff0c\u4f7f\u6bcf\u4e2aurl\u5b9a\u5411\u5230\u540c\u4e00\u4e2a\u540e\u7aef\u670d\u52a1\u5668\uff0c\u540e\u7aef\u670d\u52a1\u5668\u4e3a\u7f13\u5b58\u65f6\u6bd4\u8f83\u6709\u6548\u3002<\/div>\n
    \u4f8b\uff1a\u5728upstream\u4e2d\u52a0\u5165hash\u8bed\u53e5\uff0cserver\u8bed\u53e5\u4e2d\u4e0d\u80fd\u5199\u5165weight\u7b49\u5176\u4ed6\u7684\u53c2\u6570\uff0chash_method\u662f\u4f7f\u7528\u7684hash\u7b97\u6cd5<\/div>\n
    upstream web_pool {<\/div>\n
    server squid1:3128;<\/div>\n
    server squid2:3128;<\/div>\n
    hash $request_uri;<\/div>\n
    hash_method crc32;<\/div>\n
    }<\/div>\n
    <\/div>\n
    \u6bcf\u4e2a\u8bbe\u5907\u7684\u72b6\u6001\u8bbe\u7f6e\u4e3a:<\/div>\n
    1.down \u8868\u793a\u5f53\u524d\u7684server\u4e0d\u53c2\u4e0e\u8d1f\u8f7d,\u7528\u4e8eip_hash\u4e2d<\/div>\n
    2.weight \u9ed8\u8ba4\u4e3a1.weight\u8d8a\u5927\uff0c\u8d1f\u8f7d\u7684\u6743\u91cd\u5c31\u8d8a\u5927\u3002<\/div>\n
    3.max_fails \u5141\u8bb8\u8bf7\u6c42\u5931\u8d25\u7684\u6b21\u6570\u9ed8\u8ba4\u4e3a1.\u8bbe\u4e3a0\u5219\u8868\u793a\u5173\u95ed\u8be5\u9879\u529f\u80fd\uff0c\u5f53\u8d85\u8fc7\u6700\u5927\u6b21\u6570\u65f6\uff0c\u8fd4\u56deproxy_next_upstream \u6a21\u5757\u5b9a\u4e49\u7684\u9519\u8bef<\/div>\n
    4.fail_timeout \u5728max_fails\u5b9a\u4e49\u7684\u5931\u8d25\u6b21\u6570\u540e\uff0c\u6682\u505c\u7684\u65f6\u95f4\u3002<\/div>\n
    5.backup \u53ef\u4ee5\u5c06\u5176\u7406\u89e3\u4e3a\u5907\u673a\uff0c\u5176\u5b83\u6240\u6709\u7684\u975ebackup\u673a\u5668down\u6216\u8005\u5fd9\u7684\u65f6\u5019\uff0c\u624d\u4f1a\u5c06\u8bf7\u6c42\u5206\u914d\u7ed9backup\u673a\u5668\u3002\u6240\u4ee5\u8fd9\u53f0\u673a\u5668\u538b\u529b\u4f1a\u6700\u8f7b\u3002<\/div>\n
    <\/div>\n
    nginx\u652f\u6301\u540c\u65f6\u8bbe\u7f6e\u591a\u7ec4\u7684\u8d1f\u8f7d\u5747\u8861\uff0c\u7528\u6765\u7ed9\u4e0d\u7528\u7684server\u6765\u4f7f\u7528\u3002<\/div>\n
    <\/div>\n
    (\u4e8c)\u3001\u6307\u4ee4\u7684\u4f7f\u7528<\/div>\n
    1\u3001upstream<\/div>\n
    \u58f0\u660e\u4e00\u7ec4\u53ef\u4ee5\u88abproxy_pass\u548cfastcgi_pass\u5f15\u7528\u7684\u670d\u52a1\u5668\uff1b\u8fd9\u4e9b\u670d\u52a1\u5668\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u7aef\u53e3\uff0c\u5e76\u4e14\u4e5f\u53ef\u4ee5\u4f7f\u7528Unix Socket\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u670d\u52a1\u5668\u6307\u5b9a\u4e0d\u540c\u7684\u6743\u91cd\u3002\u5982\uff1a<\/div>\n
    upstream web_pool {<\/div>\n
    \u00a0 \u00a0 server coolinuz.9966.org weight=5;<\/div>\n
    \u00a0 \u00a0 server 172.23.136.148:8080 max_fails=3 \u00a0fail_timeout=30s;<\/div>\n
    \u00a0 \u00a0 server unix:\/tmp\/backend3;<\/div>\n
    }<\/div>\n
    2\u3001server<\/div>\n
    \u8bed\u6cd5\uff1aserver name [parameters]<\/div>\n
    \u5176\u4e2d\u7684name\u53ef\u4ee5\u662fFQDN\uff0c\u4e3b\u673a\u5730\u5740\uff0c\u7aef\u53e3\u6216unix\u5957\u63a5\u5b57\uff1b\u5982\u679cFQDN\u89e3\u6790\u7684\u7ed3\u679c\u4e3a\u591a\u4e2a\u5730\u5740\uff0c\u5219\u6bcf\u4e2a\u5730\u5740\u90fd\u4f1a\u88ab\u7528\u5230\u3002<\/div>\n
    3\u3001proxy_pass<\/div>\n
    \u8bed\u6cd5\uff1aproxy_pass URL;<\/div>\n
    \u8be5\u6307\u4ee4\u7528\u4e8e\u6307\u5b9a\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5730\u5740\u548cURL\u5c06\u88ab\u6620\u5c04\u4e3a\u7684URL\u6216\u5730\u5740\u548c\u7aef\u53e3\u3002\u5373\u7528\u6765\u6307\u5b9a\u540e\u7aef\u670d\u52a1\u5668\u7684\u5730\u5740\u6216URL[\u7aef\u53e3]\u3002<\/div>\n
    4\u3001proxy_set_header<\/div>\n
    \u8bed\u6cd5\uff1aproxy_set_header header value;<\/div>\n
    \u8be5\u6307\u4ee4\u5141\u8bb8\u91cd\u65b0\u5b9a\u4e49\u548c\u6dfb\u52a0\u4e00\u4e9b\u5c06\u88ab\u8f6c\u79fb\u5230\u88ab\u4ee3\u7406\u670d\u52a1\u5668\u7684\u8bf7\u6c42\u5934\u90e8\u4fe1\u606f\u3002<\/div>\n
    \u4f8b\u5982\uff1a<\/div>\n
    proxy_set_header Host $host;<\/div>\n
    proxy_set_header X-Real-IP $remote_addr;<\/div>\n
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;<\/div>\n
    \u6ce8\u610f\uff1a$proxy_add_x_forwarded_for\u5305\u542b\u5ba2\u6237\u7aef\u8bf7\u6c42\u5934\u4e2d\u7684”X-Forwarded-For”\uff0c\u4e0e$remote_addr\u7528\u9017\u53f7\u5206\u5f00\uff0c\u5982\u679c\u6ca1\u6709”X-Forwarded-For” \u8bf7\u6c42\u5934\uff0c\u5219$proxy_add_x_forwarded_for\u7b49\u4e8e$remote_addr<\/div>\n
    <\/div>\n
    \u987a\u4fbf\u8865\u4e0aNginx\u7684\u5185\u7f6e\u53d8\u91cf\uff1a<\/div>\n
    \n\n\n\n
    \n
    $args, \u8bf7\u6c42\u4e2d\u7684\u53c2\u6570;<\/div>\n
    $is_args, \u5982\u679c\u5df2\u7ecf\u8bbe\u7f6e$args\uff0c\u5219\u8be5\u53d8\u91cf\u7684\u503c\u4e3a\u201c\uff1f\u201d\uff0c\u5426\u5219\u4e3a\u201c\u201d\u3002<\/div>\n
    $content_length, HTTP\u8bf7\u6c42\u4fe1\u606f\u5934\u91cc\u7684”Content-Length”;<\/div>\n
    $content_type, \u8bf7\u6c42\u4fe1\u606f\u5934\u91cc\u7684”Content-Type”;<\/div>\n
    $document_root, \u9488\u5bf9\u5f53\u524d\u8bf7\u6c42\u6240\u5c5e\u7684root\u6307\u4ee4\u8bbe\u7f6e\u7684\u6839\u76ee\u5f55\u8def\u5f84;<\/div>\n
    $document_uri, \u4e0e$uri\u76f8\u540c;<\/div>\n
    $host, \u8bf7\u6c42\u4fe1\u606f\u4e2d\u7684”Host”\uff0c\u5982\u679c\u8bf7\u6c42\u4e2d\u6ca1\u6709Host\u884c\uff0c\u5219\u7b49\u4e8e\u8bbe\u7f6e\u7684\u670d\u52a1\u5668\u540d;<\/div>\n
    $limit_rate, \u5bf9\u8fde\u63a5\u901f\u7387\u7684\u9650\u5236;<\/div>\n
    $request_method, \u8bf7\u6c42\u7684\u65b9\u6cd5\uff0c\u6bd4\u5982”GET”\u3001”POST”\u7b49;<\/div>\n
    $remote_addr, \u5ba2\u6237\u7aef\u5730\u5740;<\/div>\n
    $remote_port, \u5ba2\u6237\u7aef\u7aef\u53e3\u53f7;<\/div>\n
    $remote_user, \u5ba2\u6237\u7aef\u7528\u6237\u540d\uff0c\u8ba4\u8bc1\u7528;<\/div>\n
    $request_filename, \u5f53\u524d\u8bf7\u6c42\u7684\u6587\u4ef6\u8def\u5f84\u540d<\/div>\n
    $request_body_file, \u5ba2\u6237\u7aef\u8bf7\u6c42\u4e3b\u4f53\u7684\u4e34\u65f6\u6587\u4ef6\u540d\u3002<\/div>\n
    $request_uri, \u8bf7\u6c42\u7684URI\uff0c\u5e26\u53c2\u6570;<\/div>\n
    $query_string, \u4e0e$args\u76f8\u540c;<\/div>\n
    $scheme, \u6240\u7528\u7684\u534f\u8bae\uff0c\u6bd4\u5982http\u6216\u8005\u662fhttps\uff0c\u6bd4\u5982rewrite \u00a0^(.+)$ $scheme:\/\/example.com$1 \u00a0redirect;<\/div>\n
    $server_protocol, \u8bf7\u6c42\u7684\u534f\u8bae\u7248\u672c\uff0c”HTTP\/1.0″\u6216”HTTP\/1.1″;<\/div>\n
    $server_addr, \u670d\u52a1\u5668\u5730\u5740\uff0c\u5982\u679c\u6ca1\u6709\u7528listen\u6307\u660e\u670d\u52a1\u5668\u5730\u5740\uff0c\u4f7f\u7528\u8fd9\u4e2a\u53d8\u91cf\u5c06\u53d1\u8d77\u4e00\u6b21\u7cfb\u7edf\u8c03\u7528\u4ee5\u53d6\u5f97\u5730\u5740(\u9020\u6210\u8d44\u6e90\u6d6a\u8d39);<\/div>\n
    $server_name, \u8bf7\u6c42\u5230\u8fbe\u7684\u670d\u52a1\u5668\u540d;<\/div>\n
    $server_port, \u8bf7\u6c42\u5230\u8fbe\u7684\u670d\u52a1\u5668\u7aef\u53e3\u53f7;<\/div>\n
    $uri, \u8bf7\u6c42\u7684URI\uff0c\u53ef\u80fd\u548c\u6700\u521d\u7684\u503c\u6709\u4e0d\u540c\uff0c\u6bd4\u5982\u7ecf\u8fc7\u91cd\u5b9a\u5411\u4e4b\u7c7b\u7684\u3002<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    5\u3001proxy_read_timeout<\/div>\n
    \u8bed\u6cd5\uff1aproxy_read_timeout time;<\/div>\n
    \u8fd9\u4e2a\u6307\u4ee4\u8bbe\u7f6eNginx\u4e0e\u540e\u7aef\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\u540e\u3002\u7b49\u5f85\u540e\u7aef\u670d\u52a1\u5668\u7684\u54cd\u5e94\u65f6\u95f4<\/div>\n
    6\u3001proxy_send_timeout<\/div>\n
    \u8bed\u6cd5\uff1aroxy_send_timeout time;<\/div>\n
    \u8be5\u6307\u4ee4\u6307\u5b9a\u8bf7\u6c42\u8f6c\u79fb\u5230\u540e\u7aef\u670d\u52a1\u5668\u7684\u8d85\u65f6\u65f6\u95f4\u3002\u6574\u4e2a\u4f20\u8f93\u7684\u8981\u6c42\u65f6\u95f4\u4e0d\u8d85\u8fc7\u8d85\u65f6\u65f6\u95f4\uff0c\u4f46\u53ea\u6709\u4e24\u6b21\u5199\u64cd\u4f5c\u4e4b\u95f4\u3002\u5982\u679c\u5728\u6b64\u65f6\u95f4\u4e4b\u540e\u7684\u540e\u7aef\u670d\u52a1\u5668\u5c06\u4e0d\u91c7\u53d6\u65b0\u7684\u6570\u636e\uff0c\u7136\u540enginx\u5c06\u5173\u95ed\u8fde\u63a5\u3002<\/div>\n
    7\u3001proxy_connect_timeout<\/div>\n
    \u8bed\u6cd5\uff1aproxy_connect_timeout time;<\/div>\n
    \u8be5\u6307\u4ee4\u7528\u6765\u8bbe\u7f6e\u5206\u914d\u5230\u540e\u7aef\u670d\u52a1\u5668\u7684\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4\u3002<\/div>\n
    8\u3001proxy_buffers<\/div>\n
    \u8bed\u6cd5: proxy_buffers the_number is_size;<\/div>\n
    \u8be5\u6307\u4ee4\u8bbe\u7f6e\u7f13\u51b2\u533a\u7684\u6570\u76ee\u548c\u5927\u5c0f\uff0c\u7f3a\u7701\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u548c\u9875\u9762\u5927\u5c0f\u76f8\u540c\u3002<\/div>\n
    9\u3001proxy_buffer_size<\/div>\n
    \u8bed\u6cd5\uff1aproxy_buffer_size buffer_size;<\/div>\n
    \u4ee3\u7406\u7f13\u51b2\u533a\uff0c\u8be5\u6307\u4ee4\u7528\u4e8e\u4fdd\u5b58\u7528\u7528\u6237\u7684\u5934\u90e8\u4fe1\u606f\u3002<\/div>\n
    10\u3001proxy_busy_buffers_size<\/div>\n
    \u8bed\u6cd5\uff1aproxy_busy_buffers_size size;<\/div>\n
    \u7528\u4e8e\u5f53\u7cfb\u7edf\u8d1f\u8f7d\u8f83\u5927\uff0c\u7f13\u51b2\u533a\u4e0d\u591f\u7528\u65f6\uff0c\u53ef\u4ee5\u7533\u8bf7\u66f4\u5927\u7684proxy_buffers<\/div>\n
    11\u3001proxy_temp_file_write_size<\/div>\n
    \u8bed\u6cd5\uff1aproxy_temp_file_write_size size;<\/div>\n
    \u7528\u4e8e\u6307\u5b9a\u7f13\u5b58\u4e34\u65f6\u6587\u4ef6\u7684\u5927\u5c0f<\/p>\n
    (\u4e09)\u3001\u529f\u80fd\u5b8c\u5584<\/div>\n
    \u5b89\u88c5\u914d\u7f6e\u7b2c\u4e09\u65b9\u6a21\u5757\uff0c\u5b9e\u73b0upstream\u4e2d\u5bf9\u540e\u7aefweb server\u7684\u5065\u5eb7\u72b6\u6001\u68c0\u6d4b\uff1a<\/div>\n
    \u6a21\u5757\u4e0b\u8f7d\u5730\u5740\uff1ahttps:\/\/github.com\/cep21\/healthcheck_nginx_upstreams<\/a>\uff1b\u6a21\u5757\u540d\u79f0\uff1angx_http_healthcheck_module<\/div>\n
    \u5b89\u88c5\u914d\u7f6e\u65b9\u6cd5\uff1a<\/div>\n
    1\u3001\u9996\u5148\u89e3\u538bhealcheck\u6a21\u5757\u5230\u67d0\u8def\u5f84\u4e0b\uff0c\u8fd9\u91cc\u5047\u8bbe\u4e3a\/tmp\/healthcheck_nginx_upstreams<\/div>\n
    #tar -xvf cep21-healthcheck_nginx_upstreams-16d6ae7.tar.gz -C \/tmp\/healthcheck_nginx_upstreams<\/div>\n
    2\u3001\u5bf9nginx\u6253\u8865\u4e01<\/div>\n
    \u9996\u5148\u89e3\u538bnginx\uff0c\u5e76\u8fdb\u5165nginx\u6e90\u7801\u76ee\u5f55\uff1a<\/div>\n
    # tar xf nginx-1.3.4.tar.gz<\/div>\n
    # cd nginx-1.0.11<\/div>\n
    # patch -p1 < \/tmp\/healthcheck_nginx_upstreams\/nginx.patch<\/div>\n
    \u800c\u540e\u7f16\u8bd1nginx\uff0c\u5728\u6267\u884cconfigure\u65f6\u6dfb\u52a0\u7c7b\u4f3c\u4e0b\u9762\u7684\u9009\u9879\uff1a<\/div>\n
    –add-module=\/tmp\/healthcheck_nginx_upstreams<\/div>\n
    \u6240\u4ee5\uff0c\u8fd9\u91cc\u5c31\u4f7f\u7528\u5982\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n
    #\u00a0.\/configure \\
    \n–prefix=\/usr\/local\/nginx \\
    \n–sbin-path=\/usr\/sbin\/nginx \\
    \n–conf-path=\/etc\/nginx\/nginx.conf \\
    \n–lock-path=\/var\/lock\/nginx.lock \\
    \n–user=nginx \\
    \n–group=nginx \\
    \n–with-http_ssl_module \\
    \n–with-http_flv_module \\
    \n–with-http_stub_status_module \\
    \n–with-http_gzip_static_module \\
    \n–http-proxy-temp-path=\/var\/tmp\/nginx\/proxy\/ \\
    \n–http-fastcgi-temp-path=\/var\/tmp\/nginx\/fcgi\/ \\
    \n–with-pcre \\
    \n–add-module=\/tmp\/healthcheck_nginx_upstreams
    \n# make && make install<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    ngx_http_healthcheck_module\u6a21\u5757\u7684\u4f7f\u7528\u65b9\u6cd5\uff1a<\/div>\n
    1\u3001\u6b64\u6a21\u5757\u652f\u6301\u7684\u6307\u4ee4\u6709\uff1a<\/div>\n
    healthcheck_enabled##\u542f\u7528\u6b64\u6a21\u5757<\/div>\n
    healthcheck_delay##\u5bf9\u540c\u4e00\u53f0\u540e\u7aef\u670d\u52a1\u5668\u4e24\u6b21\u68c0\u6d4b\u4e4b\u95f4\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u5355\u4f4d\u6beb\u79d2\uff0c\u9ed8\u8ba4\u4e3a1000\uff1b<\/div>\n
    healthcheck_timeout##\u8fdb\u884c\u4e00\u6b21\u5065\u5eb7\u68c0\u6d4b\u7684\u8d85\u65f6\u65f6\u95f4\uff0c\u5355\u4f4d\u4e3a\u6beb\u79d2\uff0c\u9ed8\u8ba4\u503c2000\uff1b<\/div>\n
    healthcheck_failcount##\u5bf9\u4e00\u53f0\u540e\u7aef\u670d\u52a1\u5668\u68c0\u6d4b\u6210\u529f\u6216\u5931\u8d25\u591a\u5c11\u6b21\u4e4b\u540e\u65b9\u624d\u786e\u5b9a\u5176\u4e3a\u6210\u529f\u6216\u5931\u8d25\uff0c\u5e76\u5b9e\u73b0\u542f\u7528\u6216\u7981\u7528\u6b64\u670d\u52a1\u5668\uff1b<\/div>\n
    healthcheck_send##\u4e3a\u4e86\u68c0\u6d4b\u540e\u7aef\u670d\u52a1\u5668\u7684\u5065\u5eb7\u72b6\u6001\u6240\u53d1\u9001\u7684\u68c0\u6d4b\u8bf7\u6c42\uff1b\u5982\uff1ahealthcheck_send “GET \/health HTTP\/1.0” ‘Host: coolinuz.9966.org’;<\/div>\n
    healthcheck_expected##\u671f\u671b\u4ece\u540e\u7aef\u670d\u52a1\u5668\u6536\u5230\u7684\u54cd\u5e94\u5185\u5bb9\uff1b\u5982\u679c\u672a\u8bbe\u7f6e\uff0c\u5219\u8868\u793a\u4ece\u540e\u7aef\u670d\u52a1\u5668\u6536\u5230200\u72b6\u6001\u7801\u5373\u4e3a\u6b63\u786e\uff1b<\/div>\n
    healthcheck_buffer##\u5065\u5eb7\u72b6\u6001\u68c0\u67e5\u6240\u4f7f\u7528\u7684buffer\u7a7a\u95f4\u5927\u5c0f\uff1b<\/div>\n
    <\/div>\n
    healthcheck_status<\/div>\n
    \u901a\u8fc7\u7c7b\u4f3cstub_status\u7684\u65b9\u5f0f\u8f93\u51fa\u68c0\u6d4b\u4fe1\u606f\uff0c\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a<\/div>\n
    location \/stat {<\/div>\n
    \u00a0 healthcheck_status;<\/div>\n
    }<\/p>\n
    (\u56db)\u3001\u914d\u7f6e\u4e0e\u5b9e\u73b0<\/div>\n
    \u914d\u7f6e\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
    http {<\/p>\n

    upstream web_pool {
    \nserver 172.23.136.148:80 weight=10;
    \nserver 172.23.136.149:80 weight=5;
    \nhealthcheck_enabled;
    \nhealthcheck_delay 1000;
    \nhealthcheck_timeout 1000;
    \nhealthcheck_failcount 2;
    \nhealthcheck_send “GET \/.health HTTP\/1.0”;
    \n}
    \nserver {
    \nlisten 80;
    \nlocation \/ {
    \nproxy_set_header Host $http_host;
    \nproxy_set_header X-Real-IP $remote_addr;
    \nproxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    \nproxy_pass http:\/\/web_pool;
    \nproxy_connect_timeout 3;
    \n}
    \nlocation \/stat {
    \nhealthcheck_status;
    \n}
    \n}<\/p>\n

    }<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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