Random Instant 502 Bad Gateway Errors
Jérôme Loyet
jerome at loyet.net
Sat May 29 22:24:06 MSD 2010
2010/5/29 Joe <frumentius at gmail.com>:
> Usually using 5 is quiet enough.
either you have a well optimized website with a 99% cache ratio or you
don't have traffic. In the real world, there is so much web apps which
consume a lot of resources and for thoses you'll need much more than 5
children to handle them.
>
>
> 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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