Random Instant 502 Bad Gateway Errors

Joe frumentius at gmail.com
Sat May 29 22:08:34 MSD 2010


Usually using 5 is quiet enough.


Regards,
Joe


2010/5/30 Michael Shadle <mike503 at gmail.com>

> 150 children is quite a lot. Sure you need that? :)
>
>
> On May 29, 2010, at 6:02 AM, "TheCrach" <nginx-forum at nginx.us> wrote:
>
>  Hi,
>>
>> I'm French and I've some problem with nginx 0.8.38 and PHP-FPM 5.3.0 with
>> Suhosin patch :/
>> I've got random instant 502 Bad Gateway errors, generaly a refresh make
>> the page works again but it's really anoying.
>>
>> Nginx Config :
>> [code]
>> user www;
>> worker_processes 1;
>> daemon on;
>>
>> error_log /var/log/nginx/error.log;
>> pid /var/run/nginx.pid;
>>
>> worker_rlimit_nofile 32000;
>>
>> events {
>>   worker_connections  4096;
>>   use epoll;
>> }
>>
>> http {
>>
>>   include       mime.types;
>>   default_type  text/plain;
>>
>>   limit_zone http $binary_remote_addr 1m;
>>   limit_zone https $binary_remote_addr 1m;
>>
>>   client_body_timeout 8;
>>   client_header_timeout 5;
>>   keepalive_timeout 5;
>>   keepalive_requests 10;
>>   send_timeout 8;
>>
>>   client_max_body_size 512k;
>>
>>   access_log off;
>>   error_log off;
>>
>>   client_header_buffer_size    16k;
>>   large_client_header_buffers  16 16k;
>>
>>   output_buffers   2 32k;
>>   postpone_output  1460;
>>
>>   sendfile         on;
>>   tcp_nopush       on;
>>   tcp_nodelay      on;
>>   reset_timedout_connection on;
>>
>>   ignore_invalid_headers on;
>>   autoindex on;
>>   msie_padding on;
>>
>>   gzip  on;
>>   gzip_http_version 1.1;
>>   gzip_vary on;
>>   gzip_comp_level 6;
>>   gzip_proxied any;
>>   gzip_types text/plain text/css application/json application/x-javascript
>> text/xml application/xml application/xml+rss text/javascript;
>>   gzip_buffers 16 16k;
>>   gzip_disable “MSIE [1-6].(?!.*SV1)”;
>>
>>   server
>>   {
>>     listen 80 default rcvbuf=8192 sndbuf=16384 backlog=65536;
>>     index  index.html index.htm index.php;
>>     root   /home/www/;
>>
>>     limit_conn http 10;
>>
>>     access_log off;
>>
>>    location ~* \.(ico|css|js|gif|jpe?g|png)(\?[0-9]+)?$ {
>>     expires 3600;
>>     break;
>>    }
>>
>>    location ~ \.php(/|$) {
>>        include fastcgi_params;
>>    }
>>
>>    location ~ \.php5(/|$) {
>>        include fastcgi_params;
>>    }
>>
>>    location ~ \.php4(/|$) {
>>        include fastcgi_params;
>>    }
>>
>>    location /cache/status {
>>        stub_status on;
>>        access_log off;
>>    }
>>   }
>> [/code]
>>
>> Fastcgi params :
>>
>> [code]
>> fastcgi_connect_timeout 5;
>> fastcgi_send_timeout 8;
>> fastcgi_buffer_size 512k;
>> fastcgi_buffers 64 64k;
>> fastcgi_busy_buffers_size 512k;
>> fastcgi_temp_file_write_size 512k;
>> fastcgi_ignore_client_abort on;
>> fastcgi_intercept_errors on;
>> fastcgi_read_timeout 45;
>>
>> fastcgi_pass   unix:/tmp/php.socket;
>> fastcgi_index  index.php;
>> fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
>> 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;
>> fastcgi_param  SERVER_SOFTWARE    RD;
>> 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;
>> [/code]
>>
>> PHP-FPM conf :
>>
>> [code]
>> <?xml version="1.0" ?>
>> <configuration>
>>   <section name="global_options">
>>       <value name="pid_file">/var/run/php5-fpm.pid</value>
>>       <value name="error_log">/var/log/php-fpm.log</value>
>>       <value name="log_level">warn</value>
>>       <value name="emergency_restart_threshold">60</value>
>>       <value name="emergency_restart_interval">1m</value>
>>       <value name="process_control_timeout">4s</value>
>>       <value name="daemonize">yes</value>
>>   </section>
>>
>>   <workers>
>>       <section name="pool">
>>           <value name="name">RD</value>
>>           <value name="listen_address">/tmp/php.socket</value>
>>           <value name="listen_options">
>>               <value name="backlog">-1</value>
>>               <value name="owner">www</value>
>>               <value name="group">www</value>
>>               <value name="mode">0666</value>
>>           </value>
>>
>>           <value name="php_defines">
>>           </value>
>>
>>           <value name="user">www</value>
>>           <value name="group">www</value>
>>
>>           <value name="pm">
>>               <value name="style">static</value>
>>               <value name="max_children">150</value>
>>               <value name="apache_like">
>>                   <value name="StartServers">25</value>
>>                   <value name="MinSpareServers">5</value>
>>                   <value name="MaxSpareServers">35</value>
>>               </value>
>>           </value>
>>
>>           <value name="request_terminate_timeout">0s</value>
>>           <value name="request_slowlog_timeout">0s</value>
>>           <value name="slowlog">/var/log/php-fpm.log.slow</value>
>>           <value name="rlimit_files">1024</value>
>>           <value name="rlimit_core">0</value>
>>           <value name="chroot"></value>
>>           <value name="chdir"></value>
>>           <value name="catch_workers_output">yes</value>
>>           <value name="max_requests">65536</value>
>>           <value name="allowed_clients">127.0.0.1</value>
>>
>>           <value name="environment">
>>               <value name="HOSTNAME">$HOSTNAME</value>
>>               <value name="PATH">/usr/local/bin:/usr/bin:/bin</value>
>>               <value name="TMP">/tmp</value>
>>               <value name="TMPDIR">/tmp</value>
>>               <value name="TEMP">/tmp</value>
>>               <value name="OSTYPE">$OSTYPE</value>
>>               <value name="MACHTYPE">$MACHTYPE</value>
>>               <value name="MALLOC_CHECK_">2</value>
>>           </value>
>>       </section>
>>   </workers>
>> </configuration>
>> [/code]
>>
>> Server config :
>>
>> [code]
>> Intel Corei5 (Lynnfield) 4x 2.66+ GHz 8 Mo L2 - FSB 1333 MHz
>> 64 bits
>> 8 Go DDR3
>> Intel SSD X25-M 2x 80 Go RAID    0/1
>> GigaEthernet
>> [/code]
>>
>> If anyone have an idea :)
>>
>> It's very strange because it's instant and random whereas it would be
>> timedout all the time :/
>>
>> Thank's in advance.
>>
>> Posted at Nginx Forum:
>> http://forum.nginx.org/read.php?2,91854,91854#msg-91854
>>
>>
>> _______________________________________________
>> nginx mailing list
>> nginx at nginx.org
>> http://nginx.org/mailman/listinfo/nginx
>>
>
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