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Caiwangqin's blog

Focus on Cloud Service, Smart Hardware, Architecture, Technic and beyond…

International System of Units (SI)

2012年8月24日星期五

Cacti • View topic - [INFO] What is this 'm' or 'u' after my numbers in graphs??

10^-18  a - atto
10^-15  f - femto
10^-12  p - pico
10^-9   n - nano
10^-6   u - micro
10^-3   m - milli
0    (no unit)
10^3    k - kilo
10^6    M - mega
10^9    G - giga
10^12   T - tera
10^15   P - peta

'via Blog this'

Reference: http://physics.nist.gov/cuu/Units/prefixes.html

posted by Jesse Cai, 上午10:03 | Permalink | 0 comments |

Setup Cacti on EC2 Amazon Linux AMI

2012年8月17日星期五


  • Install Nginx 
sudo yum install nginx
config nginx: 
server {
        listen 8080;
        server_name monitor.domain.com;
        root /usr/share/cacti/;
        index index.php index.html;
        try_files $uri $uri/ /index.php;
        location ~ \.php$ {
                fastcgi_pass   unix:/tmp/php5-fpm.sock;
                fastcgi_index  index.php;
                fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
                include        fastcgi_params;
        }
        location ~* \.(?:ico|css|js|gif|jpe?g|png)$ {
                expires max;
                add_header Pragma public;
                add_header Cache-Control "public, must-revalidate, proxy-revalidate";
        }
    }
  • Install php-fpm
 sudo yum install php-fpm
 config php-fpm: /etc/php-fpm.d/www.conf
 listen = /tmp/php5-fpm.sock
/etc/init.d/php-fpm start 
  • Install Cacti
sudo yum install cacti
update database in: /etc/cacti/db.php 
  • Setup Cacti spine
sudo yum install net-snmp-devel 
http://www.cacti.net/spine_install_rhlnx.php 
tar xvzf cacti-spine-0.8.7.tar.gzcd spine-0.8.7./configuremake 
Open: http://monitor.domain.com, login with admin/admin
 Console->Settings->Paths, Set Spine Poller File Path to: /usr/local/spine/bin/spine
 Console->Settings->Poller, Set Poller Type to: spine
  • Config SNMPD
sudo vi /etc/snmp/snmpd.conf
access  notConfigGroup ""      any       noauth    exact  all none none
view all    included  .1                               80
sudo /etc/init.d/snmpd restart
snmpwalk -v 2c -c public your_remote_ip system
snmpwalk -v 2c -c public your_remote_ip if
Reference: 
http://www.cnblogs.com/taosim/articles/2557762.html
http://docs.cacti.net/manual:087:4_help.2_debugging#debugging 

  • View graphs




posted by Jesse Cai, 下午10:50 | Permalink | 5 comments |