Nginx + PHP5-FPM重复切出502

我在这里看到了很多关于使用Nginx + PHP-FPM时随机select502（ Nginx + PHP-FPM =“Random”502 Bad Gateway ）和类似超时的问题。

即使有所有的问题，我仍然无法find解决scheme。

使用Ubuntu 10.10 + Nginx + PHP5-FPM + APC，并且每4个请求中的每1个就会以超时和失败结束。 这不是一个负载问题或大stream量，它甚至发生在一个人的开发环境中。

我在3个1GB的机器上这样做，每个机器都有相同的configuration和相同的问题。

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• 弹性负载均衡器和SSL终止
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fastcgi_params

fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_param SCRIPT_NAME $fastcgi_script_name; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx/$nginx_version; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; fastcgi_param REDIRECT_STATUS 200; 

/etc/php5/fpm/main.conf

 ; FPM Configuration ; ;include=/etc/php5/fpm/*.conf ; Global Options ; pid = /var/run/php5-fpm.pid error_log = /var/log/php5-fpm.log ;log_level = notice ;emergency_restart_threshold = 0 ;emergency_restart_interval = 0 ;process_control_timeout = 0 ;daemonize = yes ; Pool Definitions ; include=/etc/php5/fpm/pool.d/*.conf 

/etc/php5/fpm/pool.d/www.conf

 [www] listen = 127.0.0.1:9000 ;listen.backlog = -1 ;listen.allowed_clients = 127.0.0.1 ;listen.owner = www-data ;listen.group = www-data ;listen.mode = 0666 user = www-data group = www-data ;pm.max_children = 50 pm.max_children = 15 ;pm.start_servers = 20 pm.min_spare_servers = 5 ;pm.max_spare_servers = 35 pm.max_spare_servers = 10 ;pm.max_requests = 500 ;pm.status_path = /status ;ping.path = /ping ;ping.response = pong request_terminate_timeout = 30 ;request_slowlog_timeout = 0 ;slowlog = /var/log/php-fpm.log.slow ;rlimit_files = 1024 ;rlimit_core = 0 ;chroot = chdir = /var/www ;catch_workers_output = yes 

 fastcgi_connect_timeout 90;
 fastcgi_send_timeout 180;
 fastcgi_read_timeout 180;
 fastcgi_buffer_size 1024K;
 fastcgi_buffers 8 512k;
 fastcgi_busy_buffers_size 1024k;
 fastcgi_temp_file_write_size 1024k;
 fastcgi_intercept_errors on;
 fastcgi_pass_header *;