Use nginx-rrd in CentOS to monitor the number of nginx shards

You can use monitoring programs such as cacti and nagios to monitor nginx servers, but sometimes it is not that complicated. You can use nginx-rrd to monitor connections and requests.

First, compile and install nginx. Pay attention to loading the stub_status module. The stub_status module in Nginx is mainly used to view some Nginx status information.
This module is not compiled into Nginx by default. If you want to use this module, you must specify

 
 

  
  
tarxzvfnginx-1.2.0.tar.gz
  
  
cdnginx-1.2.0
  
  
./configure--prefix=/usr/local/nginx--with-http_stub_status_module
  
  
make&&makeinstall
 
 

Install the relevant perl and rrdtool rpm packages in yum

 
 

  
  
yuminstallperlrrdtoolperl-libwww-perllibwww-perlperl-rrdtool
 
 

After confirming that rrdtool and corresponding perl are installed, start to install nginx-rrd

 
 

  
  
Tarzxvfnginx-rrd-0.1.4.tgz
  
  
Cdnginx-rrd-0.1.4
  
  
Cp-pusr/sbin/*/usr/sbin // copy the master program file to/usr/sbin.
  
  
Cp-petc/nginx-rrd.conf/etc // copy the configuration file to/etc
  
  

  
  
Create nginx-rrd directory
  
  
Mkdir/usr/local/nginx/html/rrd
  
  
Cphtml/index. php/usr/local/nginx/html
 
 

Here, we recommend you change the default access password WCO in the index. php file.

Edit/etc/nginx-rrd.conf

 
 

  
  
vim/etc/nginx-rrd.conf
  
  

  
  
#####################################################
  
  
#
  
  
#dirwhererrddatabasesarestored
  
  
RRD_DIR="/usr/local/nginx/html/rrd";
  
  
#dirwherepngimagesarepresented
  
  
WWW_DIR="/usr/local/nginx/html";
  
  
#processnicelevel
  
  
NICE_LEVEL="-19";
  
  
#bindir
  
  
BIN_DIR="/usr/sbin";
  
  
#serverstotest
  
  
#server_utl;server_name
  
  
SERVERS_URL="http://www.linuxom.com/nginx_status;www.linuxom.com"
 
 

Multiple virtual hosts can be separated by spaces in SERVERS_URL. The front part is the address of nginx_status, followed by the Domain Name of the monitored host.

Check whether the installed nginx contains the stub_status module.

 
 

  
  
/usr/local/nginx/sbin/nginx-V
  
  
nginxversion:Nginx/1.2.0
  
  
configurearguments:--with-http_stub_status_module
 
 

Confirm that the stub_status module is supported and edit and modify nginx. conf.

 
 

  
  
Vim/usr/local/nginx/conf/nginx. conf
  
  

  
  
// Add the following content to server {}:
  
  
Location /{
  
  
Roothtml;
  
  
Indexindex.phpindex.htmlindex.htm;
  
  

  
  
Location/nginx_status {
  
  
Stub_statuson; // This option parameter is supported by the stub_status module during compilation. If it is not compiled, a warning will be generated when nginx is started.
  
  
Access_logoff;
  
  
}
  
  

  
  

  
  
}
  
  

  
  
# Error_page404/404.html;
  
  

  
  
# Redirectservererrorpagestothestaticpage/50x.html
  
  
#
  
  
Error_page500502503504/50x.html;
  
  
Location =/50x.html {
  
  
Roothtml;
  
  
}
  
  

  
  
# ProxythePHPscriptstoApachelisteningon127.0.0.1: 80
  
  
#
  
  
# Location ~ \. Php $ {
  
  
# Proxy_passhttp: // 127.0.0.1;
  
  
#}
  
  

  
  
# PassthePHPscriptstoFastCGIserverlisteningon127.0.0.1: 9000
  
  
#
  
  
// Remove the annotation of the following content, which is supported by php. Note the file path.
  
  
Location ~ \. Php $ {
  
  
Roothtml;
  
  
Fastcgi_pass127.0.0.1: 9000;
  
  
Fastcgi_indexindex.php;
  
  
Fastcgi_paramSCRIPT_FILENAME/usr/local/nginx/html $ fastcgi_script_name;
  
  
Includefagi_params;
  
  
}
 
 

Restart Nginx Server

 
 

  
  
/usr/local/nginx/sbin/nginx-sreload
 
 

Set timed data collection

 
 

  
  
crontab-e
  
  
*****root/usr/sbin/nginx-collect
  
  
*/10****root/usr/sbin/nginx-graph
 
 

Access page http: // domain name/index. php, the number of nginx connections such

The number of nginx requests is as follows: