\u9996\u5148\uff0c\u8fd9\u91cc\u8bb2\u7684\u670d\u52a1\u5668\u73af\u5883\uff08lnmp\uff09\u662f\u6307\u00a0linux\u00a0+\u00a0nginx\u00a0+\u00a0php\uff08php-cgi\u00a0+\u00a0php-fpm\uff09+\u00a0mysql\u3002<\/p>\n
<\/p>\n
502\u00a0Bad\u00a0Gateway\u662flnmp\u4e0b\u51fa\u73b0\u5f97\u6700\u9891\u7e41\u7684\u95ee\u9898\uff0c\u5176\u539f\u56e0\u4e5f\u6709\u5f88\u591a\uff0c\u4ee5\u4e0b\u662f\u6211\u6536\u96c6\u7684\u95ee\u9898\u539f\u56e0\u53ca\u5176\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n
<\/p>\n
1.\u00a0php\u8fdb\u7a0b\u6b7b\u4ea1<\/p>\n
\u6b64\u539f\u56e0\u7684\u95ee\u9898\u8868\u73b0\u4e3a\uff1a\u6bcf\u6b21\u52a8\u6001\uff08php\uff09\u8bf7\u6c42\u90fd\u51fa\u73b0502\u9519\u8bef<\/p>\n
\u89e3\u51b3\u65b9\u6cd5\uff1a\u542f\u52a8php\u5373\u53ef\u00a0\u201cservice\u00a0php-fpm\u00a0start\u00a0\u201d\uff0c\u6216\u8005\u00a0\u201cphp\u5b89\u88c5\u8def\u5f84\/php\/sbin\/php-fpm\u00a0start\u201d<\/p>\n
<\/p>\n
2.\u00a0php-cgi\u8fdb\u7a0b\u6570\u4e0d\u8db3<\/p>\n
\u6b64\u539f\u56e0\u7684\u95ee\u9898\u8868\u73b0\u4e3a\uff1a\u52a8\u6001\u8bf7\u6c42\u6709\u65f6\u51fa\u73b0502\u9519\u8bef\uff0c\u4e00\u822c\u6ca1\u95ee\u9898\uff0c\u8fd9\u662f\u5e76\u53d1\u9ad8\u65f6php-cgi\u8fdb\u7a0b\u6570\u4e0d\u591f\u7528\u7684\u8868\u73b0<\/p>\n
\u89e3\u51b3\u65b9\u6cd5\uff1a\u4fee\u6539php-fpm\u914d\u7f6ephp-fpm.conf\uff0c\u5c06\u00a0<value\u00a0name=”max_children”>60<\/value>\u00a0\u4e2d\u7684\u6570\u52a0\u5927\uff0cmax_children\u6570\u7684\u8bbe\u7f6e\u4e0d\u4ec5\u53d6\u51b3\u4e8e\u670d\u52a1\u5668\u786c\u4ef6\u914d\u7f6e\uff0c\u800c\u4e14\u548cphp\u7a0b\u5e8f\u7684\u590d\u6742\u5ea6\u6709\u5173\uff0c\u4e00\u822c4G\u5185\u5b58\u53ef\u4ee5\u8bbe\u7f6e\u5230120-200\u3002\u4fee\u6539\u540e\u628aphp-fpm\u00a0reload\u4e0b\uff1b\u5fc5\u8981\u65f6\u662f\u518d\u4fee\u6539nginx\u914d\u7f6enginx.conf\uff0c\u5c06\u00a0worker_processes\u00a0\u6570\u8c03\u5230\u4e0ecpu\u6570\u76f8\u7b49\uff08worker_processes\u9ed8\u8ba4\u4e3a1\uff09<\/p>\n
<\/p>\n
3.\u00a0php-cgi\u8fdb\u7a0b\u8d85\u65f6<\/p>\n
\u6b64\u539f\u56e0\u7684\u95ee\u9898\u8868\u73b0\u4e3a\uff1aphp\u8fdb\u7a0b\u8fd0\u884c\u4e00\u6bb5\u65f6\u95f4\u540e\u51fa\u73b0502\u9519\u8bef\uff0c\u8fd9\u79cd\u60c5\u51b5\u53ef\u80fd\u662fphp\u7a0b\u5e8f\u6ca1\u6709\u52a0set_time_limit(0)\uff0c\u4e5f\u53ef\u80fd\u662f\u88abphp-fpm\u7684\u8bbe\u7f6e\u9650\u5b9a\u4e86\u8fd0\u884c\u65f6\u95f4\uff0c\u4e0b\u9762\u8ba8\u8bba\u7b2c\u4e8c\u4e2d\u60c5\u51b5<\/p>\n
\u89e3\u51b3\u65b9\u6cd5\uff1a\u4fee\u6539php-fpm\u914d\u7f6ephp-fpm.conf\uff0c\u5c06<value\u00a0name=”request_terminate_timeout”>30s<\/value>\u00a0\u4e2d\u6570\u5b57\u8c03\u5230\u66f4\u9ad8\uff0c\u8c03\u4e3a0s\u5219\u5141\u8bb8\u65e0\u9650\u65f6\u95f4\u8fd0\u884c\uff1b\u5fc5\u8981\u65f6\u518d\u4fee\u6539nginx\u914d\u7f6enginx.conf\uff0c\u5c06fastcgi_connect_timeout\u3001fastcgi_send_timeout\u3001fastcgi_read_timeout\u53c2\u6570\u52a0\u5927<\/p>\n
<\/p>\n
4.\u00a0\u78c1\u76d8\u7a7a\u95f4\u4e0d\u8db3<\/p>\n
\u6b64\u539f\u56e0\u8f83\u5c11\uff0c\u95ee\u9898\u8868\u73b0\u4e3a\uff1a502\u9519\u8bef\u6216\u8005\u65e0\u6cd5\u8fde\u63a5\u5230\u670d\u52a1\u5668\uff0c\u65e0\u6cd5\u8fde\u63a5\u5230\u670d\u52a1\u5668\u65f6nginx\u4e5f\u6b7b\u4e86<\/p>\n
\u8fd9\u79cd\u60c5\u51b5\u7684\u5224\u65ad\uff1a\u542f\u52a8php-fpm\u6216\u8005nginx\u7684\u65f6\u95f4\u8f83\u957f\uff0c\u4f46\u6700\u7ec8\u542f\u52a8\u5931\u8d25\uff0c\u8fd9\u5927\u6982\u5c31\u662f\u78c1\u76d8\u7a7a\u95f4\u4e0d\u8db3\u4e86\uff0c\u7136\u540e\u53ef\u4ee5\u7528\u547d\u4ee4\u67e5\u770b\u78c1\u76d8\u5360\u7528\u72b6\u51b5\uff1adf\u00a0-lh\u00a0\uff0c\u5982\u679c\u6839\u76ee\u5f55\u201c\/\u201d\u5bf9\u5e94\u7684\u78c1\u76d8\u4f7f\u7528\u7387\u4e3a100%\uff0c\u90a3\u4e48\u9700\u8981\u6e05\u7406\u78c1\u76d8\u7a7a\u95f4<\/p>\n
\u89e3\u51b3\u65b9\u6cd5\uff1a\u5220\u9664\u8fc7\u5927\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u5173\u95ed\u90e8\u5206\u670d\u52a1\u7ec4\u4ef6\u7684\u65e5\u5fd7\u3002\u4e00\u822c\u9700\u8981\u68c0\u67e5\u00a0\/var\/log\u00a0\u76ee\u5f55\u4e0b\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u68c0\u67e5\u00a0nginx\u3001php\u7684\u65e5\u5fd7\uff0c\u68c0\u67e5mysql\u7684\u65e5\u5fd7\u3002\u5982\u679c\u4ee5\u4e0a\u76ee\u5f55\u6ca1\u6709\u95ee\u9898\uff0c\u5219\u9700\u4e00\u4e2a\u4e00\u4e2a\u7684\u68c0\u67e5\u5176\u4ed6\u76ee\u5f55\uff08\u4f18\u5148\u68c0\u67e5\u00a0\/usr\u76ee\u5f55\uff09\uff0c\u5220\u9664\u8fc7\u5927\u7684\u6587\u4ef6\u3002<\/p>\n
<\/p>\n
Nginx\u00a0502\u00a0Bad\u00a0Gateway\u7684\u542b\u4e49\u662f\u8bf7\u6c42\u7684PHP-CGI\u5df2\u7ecf\u6267\u884c\uff0c\u4f46\u662f\u7531\u4e8e\u67d0\u79cd\u539f\u56e0\uff08\u4e00\u822c\u662f\u8bfb\u53d6\u8d44\u6e90\u7684\u95ee\u9898\uff09\u6ca1\u6709\u6267\u884c\u5b8c\u6bd5\u800c\u5bfc\u81f4PHP-CGI\u8fdb\u7a0b\u7ec8\u6b62\u3002<\/p>\n
Nginx\u00a0504\u00a0Gateway\u00a0Time-out\u7684\u542b\u4e49\u662f\u6240\u8bf7\u6c42\u7684\u7f51\u5173\u6ca1\u6709\u8bf7\u6c42\u5230\uff0c\u7b80\u5355\u6765\u8bf4\u5c31\u662f\u6ca1\u6709\u8bf7\u6c42\u5230\u53ef\u4ee5\u6267\u884c\u7684PHP-CGI\u3002<\/p>\n
<\/p>\n
\u89e3\u51b3\u8fd9\u4e24\u4e2a\u95ee\u9898\u5176\u5b9e\u662f\u9700\u8981\u7efc\u5408\u601d\u8003\u7684\uff0c\u4e00\u822c\u6765\u8bf4Nginx\u00a0502\u00a0Bad\u00a0Gateway\u548cphp-fpm.conf\u7684\u8bbe\u7f6e\u6709\u5173\uff0c\u800cNginx\u00a0504\u00a0Gateway\u00a0Time-out\u5219\u662f\u4e0enginx.conf\u7684\u8bbe\u7f6e\u6709\u5173\u3002<\/p>\n
\u800c\u6b63\u786e\u7684\u8bbe\u7f6e\u9700\u8981\u8003\u8651\u670d\u52a1\u5668\u81ea\u8eab\u7684\u6027\u80fd\u548c\u8bbf\u5ba2\u7684\u6570\u91cf\u7b49\u591a\u91cd\u56e0\u7d20\u3002<\/p>\n
\u4ee5\u6211\u76ee\u524d\u7684\u670d\u52a1\u5668\u4e3a\u4f8b\u5b50CPU\u662f\u5954\u56db1.5G\u7684\uff0c\u5185\u5b581GB\uff0cCENTOS\u7684\u7cfb\u7edf\uff0c\u8bbf\u5ba2\u5927\u6982\u662f50\u4eba\u5de6\u53f3\u540c\u65f6\u5728\u7ebf\u3002<\/p>\n
\u4f46\u662f\u5728\u7ebf\u7684\u4eba\u5927\u90fd\u9700\u8981\u8bf7\u6c42PHP-CGI\u8fdb\u884c\u5927\u91cf\u7684\u4fe1\u606f\u5904\u7406\uff0c\u56e0\u6b64\u6211\u5c06nginx.conf\u8bbe\u7f6e\u4e3a\uff1a<\/p>\n
fastcgi_connect_timeout\u00a0300s;<\/p>\n
fastcgi_send_timeout\u00a0300s;<\/p>\n
fastcgi_read_timeout\u00a0300s;<\/p>\n
fastcgi_buffer_size\u00a0128k;<\/p>\n
fastcgi_buffers\u00a08\u00a0128k;#8\u00a0128<\/p>\n
fastcgi_busy_buffers_size\u00a0256k;<\/p>\n
fastcgi_temp_file_write_size\u00a0256k;<\/p>\n
fastcgi_intercept_errors\u00a0on;<\/p>\n
\u8fd9\u91cc\u6700\u4e3b\u8981\u7684\u8bbe\u7f6e\u662f\u524d\u4e09\u6761\uff0c\u5373<\/p>\n
fastcgi_connect_timeout\u00a0300s;<\/p>\n
fastcgi_send_timeout\u00a0300s;<\/p>\n
fastcgi_read_timeout\u00a0300s;<\/p>\n
\u8fd9\u91cc\u89c4\u5b9a\u4e86PHP-CGI\u7684\u8fde\u63a5\u3001\u53d1\u9001\u548c\u8bfb\u53d6\u7684\u65f6\u95f4\uff0c300\u79d2\u8db3\u591f\u7528\u4e86\uff0c\u56e0\u6b64\u6211\u7684\u670d\u52a1\u5668\u5f88\u5c11\u51fa\u73b0504\u00a0Gateway\u00a0Time-out\u8fd9\u4e2a\u9519\u8bef\u3002\u6700\u5173\u952e\u7684\u662fphp-fpm.conf\u7684\u8bbe\u7f6e\uff0c\u8fd9\u4e2a\u4f1a\u76f4\u63a5\u5bfc\u81f4502\u00a0Bad\u00a0Gateway\u548c504\u00a0Gateway\u00a0Time-out\u3002<\/p>\n
\u4e0b\u9762\u6211\u4eec\u6765\u4ed4\u7ec6\u5206\u6790\u4e00\u4e0bphp-fpm.conf\u51e0\u4e2a\u91cd\u8981\u7684\u53c2\u6570\uff1a<\/p>\n
php-fpm.conf\u6709\u4e24\u4e2a\u81f3\u5173\u91cd\u8981\u7684\u53c2\u6570\uff0c\u4e00\u4e2a\u662f\u201dmax_children\u201d,\u53e6\u4e00\u4e2a\u662f\u201drequest_terminate_timeout\u201d<\/p>\n
\u6211\u7684\u4e24\u4e2a\u8bbe\u7f6e\u7684\u503c\u4e00\u4e2a\u662f\u201d40\u2033\uff0c\u4e00\u4e2a\u662f\u201d900\u2033\uff0c\u4f46\u662f\u8fd9\u4e2a\u503c\u4e0d\u662f\u901a\u7528\u7684\uff0c\u800c\u662f\u9700\u8981\u81ea\u5df1\u8ba1\u7b97\u7684\u3002<\/p>\n
\u8ba1\u7b97\u7684\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n
\u5982\u679c\u4f60\u7684\u670d\u52a1\u5668\u6027\u80fd\u8db3\u591f\u597d\uff0c\u4e14\u5bbd\u5e26\u8d44\u6e90\u8db3\u591f\u5145\u8db3\uff0cPHP\u811a\u672c\u6ca1\u6709\u7cfb\u5faa\u73af\u6216BUG\u7684\u8bdd\u4f60\u53ef\u4ee5\u76f4\u63a5\u5c06\u201drequest_terminate_timeout\u201d\u00a0\u8bbe\u7f6e\u62100s\u30020s\u7684\u542b\u4e49\u662f\u8ba9PHP-CGI\u4e00\u76f4\u6267\u884c\u4e0b\u53bb\u800c\u6ca1\u6709\u65f6\u95f4\u9650\u5236\u3002\u800c\u5982\u679c\u4f60\u505a\u4e0d\u5230\u8fd9\u4e00\u70b9\uff0c\u4e5f\u5c31\u662f\u8bf4\u4f60\u7684PHP-CGI\u53ef\u80fd\u51fa\u73b0\u67d0\u4e2aBUG\uff0c\u6216\u8005\u4f60\u7684\u5bbd\u5e26\u4e0d\u591f\u5145\u8db3\u6216\u8005\u5176\u4ed6\u7684\u539f\u56e0\u5bfc\u81f4\u4f60\u7684PHP-CGI\u80fd\u591f\u5047\u6b7b\u90a3\u4e48\u5c31\u5efa\u8bae\u4f60\u7ed9\u201drequest_terminate_timeout\u201d\u8d4b\u4e00\u4e2a\u503c\uff0c\u8fd9\u4e2a\u503c\u53ef\u4ee5\u6839\u636e\u4f60\u670d\u52a1\u5668\u7684\u6027\u80fd\u8fdb\u884c\u8bbe\u5b9a\u3002\u4e00\u822c\u6765\u8bf4\u6027\u80fd\u8d8a\u597d\u4f60\u53ef\u4ee5\u8bbe\u7f6e\u8d8a\u9ad8\uff0c20\u5206\u949f-30\u5206\u949f\u90fd\u53ef\u4ee5\u3002\u7531\u4e8e\u6211\u7684\u670d\u52a1\u5668PHP\u811a\u672c\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\uff0c\u6709\u7684\u53ef\u80fd\u4f1a\u8d85\u8fc710\u00a0\u5206\u949f\u56e0\u6b64\u6211\u8bbe\u7f6e\u4e86900\u79d2\uff0c\u8fd9\u6837\u4e0d\u4f1a\u5bfc\u81f4PHP-CGI\u6b7b\u6389\u800c\u51fa\u73b0502\u00a0Bad\u00a0gateway\u8fd9\u4e2a\u9519\u8bef\u3002<\/p>\n
<\/p>\n
\u800c\u201dmax_children\u201d\u8fd9\u4e2a\u503c\u53c8\u662f\u600e\u4e48\u8ba1\u7b97\u51fa\u6765\u7684\u5462\uff1f\u8fd9\u4e2a\u503c\u539f\u5219\u4e0a\u662f\u8d8a\u5927\u8d8a\u597d\uff0cphp-cgi\u7684\u8fdb\u7a0b\u591a\u4e86\u5c31\u4f1a\u5904\u7406\u7684\u5f88\u5feb\uff0c\u6392\u961f\u7684\u8bf7\u6c42\u5c31\u4f1a\u5f88\u5c11\u3002\u8bbe\u7f6e\u201dmax_children\u201d\u4e5f\u9700\u8981\u6839\u636e\u670d\u52a1\u5668\u7684\u6027\u80fd\u8fdb\u884c\u8bbe\u5b9a\uff0c\u4e00\u822c\u6765\u8bf4\u4e00\u53f0\u670d\u52a1\u5668\u6b63\u5e38\u60c5\u51b5\u4e0b\u6bcf\u4e00\u4e2aphp-cgi\u6240\u8017\u8d39\u7684\u5185\u5b58\u572820M\u5de6\u53f3\uff0c\u56e0\u6b64\u6211\u7684\u201dmax_children\u201d\u6211\u8bbe\u7f6e\u621040\u4e2a\uff0c20M*40=800M\u4e5f\u5c31\u662f\u8bf4\u5728\u5cf0\u503c\u7684\u65f6\u5019\u6240\u6709PHP-CGI\u6240\u8017\u5185\u5b58\u5728800M\u4ee5\u5185\uff0c\u4f4e\u4e8e\u6211\u7684\u6709\u6548\u5185\u5b581Gb\u3002\u800c\u5982\u679c\u6211\u7684\u201dmax_children\u201d\u8bbe\u7f6e\u7684\u8f83\u5c0f\uff0c\u6bd4\u59825-10\u4e2a\uff0c\u90a3\u4e48php-cgi\u5c31\u4f1a\u201c\u5f88\u7d2f\u201d\uff0c\u5904\u7406\u901f\u5ea6\u4e5f\u5f88\u6162\uff0c\u7b49\u5f85\u7684\u65f6\u95f4\u4e5f\u8f83\u957f\u3002\u5982\u679c\u957f\u65f6\u95f4\u6ca1\u6709\u5f97\u5230\u5904\u7406\u7684\u8bf7\u6c42\u5c31\u4f1a\u51fa\u73b0504\u00a0Gateway\u00a0Time-out\u8fd9\u4e2a\u9519\u8bef\uff0c\u800c\u6b63\u5728\u5904\u7406\u7684\u5f88\u7d2f\u7684\u90a3\u51e0\u4e2aphp-cgi\u5982\u679c\u9047\u5230\u4e86\u95ee\u9898\u5c31\u4f1a\u51fa\u73b0502\u00a0Bad\u00a0gateway\u8fd9\u4e2a\u9519\u8bef\u3002<\/p>\n
<\/p>\n
\u4e00\u4e9b\u8fd0\u884c\u5728Nginx\u4e0a\u7684\u7f51\u7ad9\u6709\u65f6\u5019\u4f1a\u51fa\u73b0\u201c502\u00a0Bad\u00a0Gateway\u201d\u9519\u8bef\uff0c\u6709\u4e9b\u65f6\u5019\u751a\u81f3\u9891\u7e41\u7684\u51fa\u73b0\u3002\u4ee5\u4e0b\u662f\u4eceGoogle\u641c\u96c6\u6574\u7406\u7684\u4e00\u4e9bNginx\u00a0502\u9519\u8bef\u7684\u6392\u67e5\u65b9\u6cd5\uff0c\u4f9b\u53c2\u8003\uff1a<\/p>\n
Nginx\u00a0502\u9519\u8bef\u7684\u539f\u56e0\u6bd4\u8f83\u591a\uff0c\u662f\u56e0\u4e3a\u5728\u4ee3\u7406\u6a21\u5f0f\u4e0b\u540e\u7aef\u670d\u52a1\u5668\u51fa\u73b0\u95ee\u9898\u5f15\u8d77\u7684\u3002\u8fd9\u4e9b\u9519\u8bef\u4e00\u822c\u90fd\u4e0d\u662fnginx\u672c\u8eab\u7684\u95ee\u9898\uff0c\u4e00\u5b9a\u8981\u4ece\u540e\u7aef\u627e\u539f\u56e0\uff01\u4f46nginx\u628a\u8fd9\u4e9b\u51fa\u9519\u90fd\u63fd\u5728\u81ea\u5df1\u8eab\u4e0a\u4e86\uff0c\u7740\u5b9e\u8ba9nginx\u7684\u63a8\u5e7f\u8005\u5907\u53d7\u7f6e\u7591\uff0c\u6bd5\u7adf\u4ece\u5b57\u773c\u4e0a\u7406\u89e3\uff0cbad\u00a0gateway\uff1f\u4e0d\u5c31\u662fbad\u00a0nginx\u5417\uff1f\u8ba9\u4e0d\u4e86\u89e3\u7684\u4eba\u770b\u5230\uff0c\u4f1a\u76f4\u63a5\u628a\u8d23\u4efb\u63a8\u5728nginx\u8eab\u4e0a\uff0c\u5e0c\u671bnginx\u4e0b\u4e00\u4e2a\u7248\u672c\u4f1a\u628a\u51fa\u9519\u63d0\u793a\u5199\u7a0d\u5fae\u53cb\u597d\u4e00\u4e9b\uff0c\u81f3\u5c11\u4e0d\u4f1a\u662f\u73b0\u5728\u7b80\u5355\u7684\u4e00\u53e5\u00a0502\u00a0Bad\u00a0Gateway\uff0c\u53e6\u5916\u8fd8\u4e0d\u5fd8\u9644\u4e0a\u81ea\u5df1\u7684\u5927\u540d\u3002<\/p>\n
Nginx\u00a0502\u7684\u89e6\u53d1\u6761\u4ef6
\n502\u9519\u8bef\u6700\u901a\u5e38\u7684\u51fa\u73b0\u60c5\u51b5\u5c31\u662f\u540e\u7aef\u4e3b\u673a\u5f53\u673a\u3002\u5728upstream\u914d\u7f6e\u91cc\u6709\u8fd9\u4e48\u4e00\u9879\u914d\u7f6e\uff1aproxy_next_upstream\uff0c\u8fd9\u4e2a\u914d\u7f6e\u6307\u5b9a\u4e86\u00a0nginx\u5728\u4ece\u4e00\u4e2a\u540e\u7aef\u4e3b\u673a\u53d6\u6570\u636e\u9047\u5230\u4f55\u79cd\u9519\u8bef\u65f6\u4f1a\u8f6c\u5230\u4e0b\u4e00\u4e2a\u540e\u7aef\u4e3b\u673a\uff0c\u91cc\u5934\u5199\u4e0a\u7684\u5c31\u662f\u4f1a\u51fa\u73b0502\u7684\u6240\u6709\u60c5\u51b5\u62c9\uff0c\u9ed8\u8ba4\u662ferror\u00a0timeout\u3002error\u5c31\u662f\u5f53\u673a\u3001\u65ad\u7ebf\u4e4b\u7c7b\u7684\uff0ctimeout\u5c31\u662f\u8bfb\u53d6\u5835\u585e\u8d85\u65f6\uff0c\u6bd4\u8f83\u5bb9\u6613\u7406\u89e3\u3002\u6211\u4e00\u822c\u662f\u5168\u5199\u4e0a\u7684\uff1a<\/p>\n
proxy_next_upstream\u00a0error\u00a0timeout\u00a0invalid_header\u00a0http_500\u00a0http_503;<\/p>\n
\u4e0d\u8fc7\u73b0\u5728\u53ef\u80fd\u6211\u8981\u53bb\u6389http_500\u8fd9\u4e00\u9879\u4e86\uff0chttp_500\u6307\u5b9a\u540e\u7aef\u8fd4\u56de500\u9519\u8bef\u65f6\u4f1a\u8f6c\u4e00\u4e2a\u4e3b\u673a\uff0c\u540e\u7aef\u7684jsp\u51fa\u9519\u7684\u8bdd\uff0c\u672c\u6765\u4f1a\u6253\u5370\u4e00\u5806\u00a0stacktrace\u7684\u9519\u8bef\u4fe1\u606f\uff0c\u73b0\u5728\u88ab502\u53d6\u4ee3\u4e86\u3002\u4f46\u516c\u53f8\u7684\u7a0b\u5e8f\u5458\u53ef\u4e0d\u8fd9\u4e48\u8ba4\u4e3a\uff0c\u4ed6\u4eec\u8ba4\u5b9a\u662fnginx\u51fa\u73b0\u4e86\u9519\u8bef\uff0c\u6211\u5b9e\u5728\u6ca1\u7a7a\u8ddf\u4ed6\u4eec\u89e3\u91ca502\u7684\u539f\u7406\u00a0\u4e86\u2026\u2026<\/p>\n
503\u9519\u8bef\u5c31\u53ef\u4ee5\u4fdd\u7559\uff0c\u56e0\u4e3a\u540e\u7aef\u901a\u5e38\u662fapache\u00a0resin\uff0c\u5982\u679capache\u6b7b\u673a\u5c31\u662ferror\uff0c\u4f46resin\u6b7b\u673a\uff0c\u4ec5\u4ec5\u662f503\uff0c\u6240\u4ee5\u8fd8\u662f\u6709\u5fc5\u8981\u4fdd\u7559\u7684\u3002<\/p>\n
\u89e3\u51b3\u529e\u6cd5<\/p>\n
\u9047\u5230502\u95ee\u9898\uff0c\u53ef\u4ee5\u4f18\u5148\u8003\u8651\u6309\u7167\u4ee5\u4e0b\u4e24\u4e2a\u6b65\u9aa4\u53bb\u89e3\u51b3\u3002<\/p>\n
1\u3001\u67e5\u770b\u5f53\u524d\u7684PHP\u00a0FastCGI\u8fdb\u7a0b\u6570\u662f\u5426\u591f\u7528\uff1a<\/p>\n
netstat\u00a0-anpo\u00a0|\u00a0grep\u00a0“php-cgi”\u00a0|\u00a0wc\u00a0-l<\/p>\n
\u5982\u679c\u5b9e\u9645\u4f7f\u7528\u7684\u201cFastCGI\u8fdb\u7a0b\u6570\u201d\u63a5\u8fd1\u9884\u8bbe\u7684\u201cFastCGI\u8fdb\u7a0b\u6570\u201d\uff0c\u90a3\u4e48\uff0c\u8bf4\u660e\u201cFastCGI\u8fdb\u7a0b\u6570\u201d\u4e0d\u591f\u7528\uff0c\u9700\u8981\u589e\u5927\u3002<\/p>\n
2\u3001\u90e8\u5206PHP\u7a0b\u5e8f\u7684\u6267\u884c\u65f6\u95f4\u8d85\u8fc7\u4e86Nginx\u7684\u7b49\u5f85\u65f6\u95f4\uff0c\u53ef\u4ee5\u9002\u5f53\u589e\u52a0nginx.conf\u914d\u7f6e\u6587\u4ef6\u4e2dFastCGI\u7684timeout\u65f6\u95f4\uff0c\u4f8b\u5982\uff1a<\/p>\n
……http{……fastcgi_connect_timeout\u00a0300;fastcgi_send_timeout\u00a0300;fastcgi_read_timeout\u00a0300;……}……<\/p>\n
php.ini\u4e2dmemory_limit\u8bbe\u4f4e\u4e86\u4f1a\u51fa\u9519\uff0c\u4fee\u6539\u4e86php.ini\u7684memory_limit\u4e3a64M\uff0c\u91cd\u542fnginx\uff0c\u53d1\u73b0\u597d\u4e86\uff0c\u539f\u6765\u662fPHP\u7684\u5185\u5b58\u4e0d\u8db3\u4e86\u3002<\/p>\n
\u5982\u679c\u8fd9\u6837\u4fee\u6539\u4e86\u8fd8\u89e3\u51b3\u4e0d\u4e86\u95ee\u9898\uff0c\u53ef\u4ee5\u53c2\u8003\u4e0b\u9762\u8fd9\u4e9b\u65b9\u6848\uff1a<\/p>\n
\u4e00\u3001max-children\u548cmax-requests<\/p>\n
\u4e00\u53f0\u670d\u52a1\u5668\u4e0a\u8fd0\u884c\u7740nginx\u00a0php(fpm)\u00a0xcache\uff0c\u8bbf\u95ee\u91cf\u65e5\u5747\u00a0300W\u00a0pv\u5de6\u53f3<\/p>\n
\u6700\u8fd1\u7ecf\u5e38\u4f1a\u51fa\u73b0\u8fd9\u6837\u7684\u60c5\u51b5\uff1a\u00a0php\u9875\u9762\u6253\u5f00\u5f88\u6162\uff0ccpu\u4f7f\u7528\u7387\u7a81\u7136\u964d\u81f3\u5f88\u4f4e\uff0c\u7cfb\u7edf\u8d1f\u8f7d\u7a81\u7136\u5347\u81f3\u5f88\u9ad8\uff0c\u67e5\u770b\u7f51\u5361\u7684\u6d41\u91cf\uff0c\u4e5f\u4f1a\u53d1\u73b0\u7a81\u7136\u964d\u5230\u4e86\u5f88\u4f4e\u3002\u8fd9\u79cd\u60c5\u51b5\u53ea\u6301\u7eed\u6570\u79d2\u949f\u5c31\u6062\u590d\u4e86<\/p>\n
\u68c0\u67e5php-fpm\u7684\u65e5\u5fd7\u6587\u4ef6\u53d1\u73b0\u4e86\u4e00\u4e9b\u7ebf\u7d22<\/p>\n
Sep\u00a030\u00a008:32:23.289973\u00a0[NOTICE]\u00a0fpm_unix_init_main(),\u00a0line\u00a0271:\u00a0getrlimit(nofile):\u00a0max:51200,\u00a0cur:51200Sep\u00a030\u00a008:32:23.290212\u00a0[NOTICE]\u00a0fpm_sockets_init_main(),\u00a0line\u00a0371:\u00a0using\u00a0inherited\u00a0socket\u00a0fd=10,\u00a0\u201c127.0.0.1:9000\u2033Sep\u00a030\u00a008:32:23.290342\u00a0[NOTICE]\u00a0fpm_event_init_main(),\u00a0line\u00a0109:\u00a0libevent:\u00a0using\u00a0epollSep\u00a030\u00a008:32:23.296426\u00a0[NOTICE]\u00a0fpm_init(),\u00a0line\u00a047:\u00a0fpm\u00a0is\u00a0running,\u00a0pid\u00a030587<\/p>\n
\u5728\u8fd9\u51e0\u53e5\u7684\u524d\u9762\uff0c\u662f1000\u591a\u884c\u7684\u5173\u95edchildren\u548c\u5f00\u542fchildren\u7684\u65e5\u5fd7<\/p>\n
\u539f\u6765\uff0cphp-fpm\u6709\u4e00\u4e2a\u53c2\u6570\u00a0max_requests\uff0c\u8be5\u53c2\u6570\u6307\u660e\u4e86\uff0c\u6bcf\u4e2achildren\u6700\u591a\u5904\u7406\u591a\u5c11\u4e2a\u8bf7\u6c42\u540e\u4fbf\u4f1a\u88ab\u5173\u95ed\uff0c\u9ed8\u8ba4\u7684\u8bbe\u7f6e\u662f500\u3002\u56e0\u4e3aphp\u662f\u628a\u8bf7\u6c42\u8f6e\u8be2\u7ed9\u6bcf\u4e2a\u00a0children\uff0c\u5728\u5927\u6d41\u91cf\u4e0b\uff0c\u6bcf\u4e2achildre\u5230\u8fbemax_requests\u6240\u7528\u7684\u65f6\u95f4\u90fd\u5dee\u4e0d\u591a\uff0c\u8fd9\u6837\u5c31\u9020\u6210\u6240\u6709\u7684children\u57fa\u672c\u4e0a\u5728\u540c\u4e00\u65f6\u95f4\u00a0\u88ab\u5173\u95ed\u3002<\/p>\n
\u5728\u8fd9\u671f\u95f4\uff0cnginx\u65e0\u6cd5\u5c06php\u6587\u4ef6\u8f6c\u4ea4\u7ed9php-fpm\u5904\u7406\uff0c\u6240\u4ee5cpu\u4f1a\u964d\u81f3\u5f88\u4f4e(\u4e0d\u7528\u5904\u7406php\uff0c\u66f4\u4e0d\u7528\u6267\u884csql)\uff0c\u800c\u8d1f\u8f7d\u4f1a\u5347\u81f3\u5f88\u9ad8(\u5173\u95ed\u548c\u5f00\u542fchildren\u3001nginx\u7b49\u5f85php-fpm)\uff0c\u7f51\u5361\u6d41\u91cf\u4e5f\u964d\u81f3\u5f88\u4f4e(nginx\u65e0\u6cd5\u751f\u6210\u6570\u636e\u4f20\u8f93\u7ed9\u5ba2\u6237\u7aef)<\/p>\n
\u89e3\u51b3\u95ee\u9898\u5f88\u7b80\u5355\uff0c\u589e\u52a0children\u7684\u6570\u91cf\uff0c\u5e76\u4e14\u5c06\u00a0max_requests\u00a0\u8bbe\u7f6e\u672a\u00a00\u00a0\u6216\u8005\u4e00\u4e2a\u6bd4\u8f83\u5927\u7684\u503c\uff1a<\/p>\n
\u6253\u5f00\u00a0\/usr\/local\/php\/etc\/php-fpm.conf<\/p>\n
\u8c03\u5927\u4ee5\u4e0b\u4e24\u4e2a\u53c2\u6570(\u6839\u636e\u670d\u52a1\u5668\u5b9e\u9645\u60c5\u51b5\uff0c\u8fc7\u5927\u4e5f\u4e0d\u884c\uff09<\/p>\n
<value\u00a0name=\u201dmax_children\u201d>5120<\/value><value\u00a0name=\u201dmax_requests\u201d>600<\/value><\/p>\n
\u7136\u540e\u91cd\u542fphp-fpm\u3002<\/p>\n
\u4e8c\u3001\u589e\u52a0\u7f13\u51b2\u533a\u5bb9\u91cf\u5927\u5c0f<\/p>\n
\u5c06nginx\u7684error\u00a0log\u6253\u5f00\uff0c\u53d1\u73b0\u201cpstream\u00a0sent\u00a0too\u00a0big\u00a0header\u00a0while\u00a0reading\u00a0response\u00a0header\u00a0from\u00a0upstream\u201d\u8fd9\u6837\u7684\u9519\u8bef\u63d0\u793a\u3002\u67e5\u9605\u4e86\u4e00\u4e0b\u8d44\u6599\uff0c\u5927\u610f\u662fnginx\u7f13\u51b2\u533a\u6709\u4e00\u4e2abug\u9020\u6210\u7684,\u6211\u4eec\u7f51\u7ad9\u7684\u9875\u9762\u6d88\u8017\u5360\u7528\u7f13\u51b2\u533a\u53ef\u80fd\u8fc7\u5927\u3002\u53c2\u8003\u8001\u5916\u5199\u7684\u4fee\u00a0\u6539\u529e\u6cd5\u589e\u52a0\u4e86\u7f13\u51b2\u533a\u5bb9\u91cf\u5927\u5c0f\u8bbe\u7f6e\uff0c502\u95ee\u9898\u5f7b\u5e95\u89e3\u51b3\u3002\u540e\u6765\u7cfb\u7edf\u7ba1\u7406\u5458\u53c8\u5bf9\u53c2\u6570\u505a\u4e86\u8c03\u6574\u53ea\u4fdd\u7559\u4e862\u4e2a\u8bbe\u7f6e\u53c2\u6570\uff1aclient\u00a0head\u00a0buffer\uff0cfastcgi\u00a0buffer\u00a0size\u3002<\/p>\n
\u4e09\u3001request_terminate_timeout<\/p>\n
\u5982\u679c\u4e3b\u8981\u662f\u5728\u4e00\u4e9bpost\u6216\u8005\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u65f6\u5019\u51fa\u73b0502\u8fd9\u79cd\u60c5\u51b5\uff0c\u800c\u4e0d\u662f\u5728\u9759\u6001\u9875\u9762\u64cd\u4f5c\u4e2d\u5e38\u89c1\uff0c\u90a3\u4e48\u53ef\u4ee5\u67e5\u770b\u4e00\u4e0bphp-fpm.conf\u8bbe\u7f6e\u4e2d\u7684\u4e00\u9879\uff1a<\/p>\n
request_terminate_timeout<\/p>\n
\u8fd9\u4e2a\u503c\u662fmax_execution_time\uff0c\u5c31\u662ffast-cgi\u7684\u6267\u884c\u811a\u672c\u65f6\u95f4\u3002<\/p>\n
0s<\/p>\n
0s\u4e3a\u5173\u95ed\uff0c\u5c31\u662f\u65e0\u9650\u6267\u884c\u4e0b\u53bb\u3002\uff08\u5f53\u65f6\u88c5\u7684\u65f6\u5019\u6ca1\u4ed4\u7ec6\u770b\u5c31\u6539\u4e86\u4e00\u4e2a\u6570\u5b57\uff09<\/p>\n
\u53d1\u73b0\uff0c\u95ee\u9898\u89e3\u51b3\u4e86\uff0c\u6267\u884c\u5f88\u957f\u65f6\u95f4\u4e5f\u4e0d\u4f1a\u51fa\u9519\u4e86\u3002<\/p>\n
\u4f18\u5316fastcgi\u4e2d\uff0c\u8fd8\u53ef\u4ee5\u6539\u6539\u8fd9\u4e2a\u503c5s\u00a0\u770b\u770b\u6548\u679c\u3002<\/p>\n
php-cgi\u8fdb\u7a0b\u6570\u4e0d\u591f\u7528\u3001php\u6267\u884c\u65f6\u95f4\u957f\u3001\u6216\u8005\u662fphp-cgi\u8fdb\u7a0b\u6b7b\u6389\uff0c\u90fd\u4f1a\u51fa\u73b0502\u9519\u8bef\u3002<\/p>\n
<\/p>\n
<\/p>\n
\u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/www.centoscn.com\/CentosBug\/softbug\/2017\/0228\/8555.html<\/p>\n","protected":false},"excerpt":{"rendered":"