nginx smooth restart and upgrade implementation method

If you change the Nginx configuration file (nginx.conf) and want to restart Nginx, you can also do this by sending the system signal to the Nginx main process. However, before you restart, make sure that the syntax of the Nginx configuration file (nginx.conf) is correct, or Nginx will not load the new configuration file. To determine if the Nginx configuration file is correct, use the following command:

/usr/local/webserver/nginx/sbin/nginx       -t   -c
/usr/local/webserver/nginx/conf/nginx.conf

If the configuration file is incorrect, the screen will prompt the wrong line of the configuration file:

[emerg]:unknowndirective"abc"inlusrllocaUwebserverlnginxjconflnginx.conf:55
Configurationfile/usr/local/webserver/nginx/conf/nginx ・ conf test failed

If the configuration file is correct, the screen prompts the following two lines of information:

The configuration file/usr/loca/webserver/nginx/conf/nginx.conf syntax is   ok
Configuration file/usr/local/webserver/nginx/conf/nginx.conf test is   successful

At this point, you can restart the Nginx smoothly.

 
/usr/local/www/nginx/sbin/nginx -xs reloadx 

Or:

 
killx -HUP `cat /usr/local/www/nginx/logs/nginx.pidx` 

here are some additions:

Smooth restart kill - HUP ` cat usr/local/www/nginx/logs/nginx pid `

smooth upgrade nginx

cd /yujialin
wget http://nginx.org/download/nginx-1.0.6.tar.gz
tar zxvf nginx-1.0.6.tar.gz
cd nginx-1.0.6

/usr/local/www/nginx/sbin/nginx -V
nginx: nginx version: nginx/1.0.4
nginx: built by gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
nginx: configure arguments: --prefix=/usr/local/www/nginx --with-pcre=/yujialin/pcre-8.12 --with-http_stub_status_module --with-http_gzip_static_module
This step is to get the build parameter

./configure --prefix=/usr/local/www/nginx --with-pcre=/yujialin/pcre-8.12 --with-http_stub_status_module --with-http_gzip_static_module
Compile

with the above

Then make, never make install

make, nginx in the objs directory, this is the new version of the program
mv /usr/local/www/nginx/sbin/nginx /usr/local/www/nginx/sbin/nginx-20110906
cp objs/nginx /usr/local/www/nginx/sbin/nginx

/usr/local/www/nginx/sbin/nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successfu

make upgrade performs an upgrade to

After the execution/usr/local/nginx/sbin/nginx - V
nginx: nginx version: nginx/1.0.6
nginx: built by gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
nginx: configure arguments: --prefix=/usr/local/www/nginx --with-pcre=/yujialin/pcre-8.12 --with-http_stub_status_module --with-http_gzip_static_module