Random Instant 502 Bad Gateway Errors
Jérôme Loyet
jerome at loyet.net
Sat May 29 17:12:37 MSD 2010
2010/5/29 TheCrach <nginx-forum at nginx.us>:
> 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 $server_name;
> fastcgi_param REDIRECT_STATUS 200;
> [/code]
>
> PHP-FPM conf :
>
> [code]
> <?xml version="1.0" ?>
> <configuration>
> <section name="global_options">
> <value name="pid_file">/var/run/php5-fpm.pid</value>
> <value name="error_log">/var/log/php-fpm.log</value>
> <value name="log_level">warn</value>
> <value name="emergency_restart_threshold">60</value>
> <value name="emergency_restart_interval">1m</value>
> <value name="process_control_timeout">4s</value>
> <value name="daemonize">yes</value>
> </section>
>
> <workers>
> <section name="pool">
> <value name="name">RD</value>
> <value name="listen_address">/tmp/php.socket</value>
> <value name="listen_options">
> <value name="backlog">-1</value>
> <value name="owner">www</value>
> <value name="group">www</value>
> <value name="mode">0666</value>
> </value>
>
> <value name="php_defines">
> </value>
>
> <value name="user">www</value>
> <value name="group">www</value>
>
> <value name="pm">
> <value name="style">static</value>
> <value name="max_children">150</value>
are your sure you don't get 150 concurent connections to FPM ?
> <value name="apache_like">
> <value name="StartServers">25</value>
> <value name="MinSpareServers">5</value>
> <value name="MaxSpareServers">35</value>
> </value>
> </value>
>
> <value name="request_terminate_timeout">0s</value>
> <value name="request_slowlog_timeout">0s</value>
> <value name="slowlog">/var/log/php-fpm.log.slow</value>
> <value name="rlimit_files">1024</value>
> <value name="rlimit_core">0</value>
> <value name="chroot"></value>
> <value name="chdir"></value>
> <value name="catch_workers_output">yes</value>
> <value name="max_requests">65536</value>
> <value name="allowed_clients">127.0.0.1</value>
>
> <value name="environment">
> <value name="HOSTNAME">$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
>
>
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