Nginx server : upstream timed out (10060: A connection attempt failed)

Question

We are running a service which will migrate the issues from Jira to test link.So I am using nginx server to communicate with mysql database and to run the testlink in the browser.

when I import more no of issue suddenly the nginx server get closed automatically.I am running my service and nginx server in Windows server 2008 R2 standard and 64 bit OS. I checked the error.log file in the C:\nginx\logs and found the error as

upstream timed out (10060: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond) while connecting to upstream, client: 192.168.27.151, server: localhost, request: "GET /testlink/lib/general/frmWorkArea.php?feature=reqSpecMgmt HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "wo-qatestlink01", referrer: "http://wo-qatestlink01/testlink/lib/general/navBar.php?tproject_id=0&tplan_id=0&updateMainPage=1"

Thanks.

Log File

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;
    proxy_read_timeout 600; 

    #gzip  on;

    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index index.php;
        fastcgi_read_timeout 600;
            #The above line has been added and below line has been commented to use the php code.
            #index  index.html index.htm;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #   proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        ########## Code added during Configuration By Anthony ################
        location ~ \.php$ {
        root           html;
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  c:/nginx/html/$fastcgi_script_name;
        include        fastcgi_params;
        }
        ######################################################################
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

Answer 1

in my case, I was running my Server inside a FreeBSD Jail (Nginx 1.6.2, PHP/5.6.6) using TCP-Port instead of socket. The problem resolved changing two settings in my

php-fpm.conf

file:

;listen.allowed_clients = 127.0.0.1 # comment out to listen to any
listen = 9000 # No IP-Address

It worked.

Answer 2

This issue is due to nginx timing out before it gets a response from the backend (php). There are a few timeouts that be set in nginx to change this.

The default "response" timeout from fastcgi is 60s. You have it at 600s, which might not be enough time.

fastcgi_read_timeout 60s; 

Nginx Documentation : FastCGI Module