Nginx upstream timed out - php

Question

So I have recently installed nginx and now It is giving me some kind of error and closing nginx every like.. 2 hours? How can I fix it? I am getting the same error just before it closes in the error log I also get a lot of other error in my error log if that is anything to do with it?
I used nginx on a windows 2008 server with PHP...
2015/04/06 14:07:29 [error] 5812#5480: *552 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: 108.162.229.140, server: http://mywebsite.com, request: "GET /assets/ajax/get_bar.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "mywebsite.com", referrer: "http://mywebsite.com/play"
2015/04/06 14:07:31 [error] 5812#5480: *600 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: 141.101.98.47, server: centralrp.co.uk, request: "GET /assets/ajax/get_bar.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "centralrp.co.uk", referrer: "http://centralrp.co.uk/play"
2015/04/06 14:10:19 [error] 5812#5480: *663 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: 141.101.98.47, server: mywebsite.com, request: "GET /home HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "mywebsite.com", referrer: "http://mywebsite.com/index"
2015/04/06 14:19:52 [error] 5812#5480: *665 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: 141.101.98.100, server: mywebsite.com, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "mywebsite.com"
2015/04/06 14:21:29 [error] 5812#5480: *667 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: 141.101.98.100, server: mywebsite.com, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "mywebsite.com", referrer: "http://mywebsite.com/"
That above is the error log and I ge tthem errors every time before it closes, and here is my config..
#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;
#gzip on;
server {
listen 80;
server_name localhost;
root /Dropbox/Website;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
rewrite ^/hk/(.*)$ /index.php?hk=$1;
rewrite ^/(|/)$ /index.php?url=$1;
rewrite ^/([a-zA-Z0-9_-]+)(|/)$ /index.php?url=$1;
rewrite ^/(.*).htm$ /$1.php;
rewrite ^/business/manage/(.*)/(.*)/?$ /index.php?bm=$2&cid=$1;
rewrite ^/tickets/manage/(.*)/(.*) /index.php?url=manage_ticket&t=$1 last;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ .php$ {
root html;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME C:/Dropbox/Website/$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

Add to location
proxy_read_timeout 3600s;
proxy_send_timeout 3600s;
Example,
location /cron/ {
...
proxy_read_timeout 3600s;
proxy_send_timeout 3600s;
}

Answer 2

Since you are using fastcgi you may actually need to set fastcgi_read_timeout.
Here's the link : http://nginx.org/en/docs/http/ngx_http_fastcgi_module.html#fastcgi_read_timeout
location ~ .php$ {
fastcgi_read_timeout 600s;
}

Answer 3

I'm not quite familiar with the diagnoses of such problems, but there are some clues you might check on your system. "upstream timeout" might be caused by too many client requests, or that somewhere in the request handling php code is blocked, due to network/dns/database/etc failure and the default timeout is too long, thus fastcgi is blocked and not able to handle subsequent requests. Maybe you could check fastcgi or your php code alone first without nginx to validate that it's functioning well.