以下動作皆在 DRBL server 上處理

Ganglia

1. Install (Base on Ubuntu Dapper)
   • Install necessary package from repository : apache2-php4, php4-gd, php4-jpgraph, php4-rrdtool, rrdtool, gcc, g++, libc6, librrd2-dev
     
   • Download last stable version ganglia, In our case, use "ganglia-3.0.4.tar.gz"

     http://sourceforge.net/project/showfiles.php?group_id=43021&package_id=35280
     

   • Uncompress package, and configure and make

     $ tar xzvf ganglia-3.0.4.tar.gz; cd /ganglia-3.0.4
     $ ./configure --with-gmetad --prefix=/opt/ganglia
     $ make
     $ sudo make install
     

   • Install Web Frontend:

     $ cp -a web /var/www/ganglia
     

2. Configure
   • Add a user, group for ganglia service, say "ganglia:ganglia"
   • On frontend, create a gmond configuration file named gmond.conf

     $ /opt/ganglia/sbin/gmond --default_config > /etc/gmond.conf
     

   • Edit file: /etc/gmond.conf

     globals {
       daemonize = yes
       setuid = yes
       user = ganglia	-------------> match 1.2.0
       debug_level = 0
       max_udp_msg_len = 1472
       mute = no
       deaf = no
       host_dmax = 0 /*secs */
       cleanup_threshold = 300 /*secs */
       gexec = no
     }
     cluster {
       name = "DRBL Cluster Project"	-------------> as you want
       owner = "NCHC OSS Lab"	-------------> as you want
       latlong = "unspecified"
       url = "unspecified"
     }
     udp_send_channel {
       host = 192.168.201.254 ---------------> match your LAN connection ip
       port = 8649
     }
     
     

   • On frontend, create a Gmetad configuration file named gmetad.conf

     $ cp /opt/src/ganglia-3.0.4/gmetad/gmetad.conf /etc/gmetad.conf
     

• Edit file /etc/gmetad.conf

  data_source "Test Cluster" 127.0.0.1:8649
  
  trusted_hosts 127.0.0.1
  
  setuid_username "ganglia"
  

• On frontend, edit web frontend configuration file "/var/www/ganglia/conf.php"

  $gmetad_root = "/var/lib/ganglia";
  $rrds = "$gmetad_root/rrds";
  
  define("RRDTOOL", "/usr/bin/rrdtool");
  
  $ganglia_ip = "127.0.0.1";
  

1.3 Setup Ganglia service and start up

• Perpare rrd log directory

  $ mkdir -p /var/lib/ganglia/rrds
  $ chown ganglia:ganglia /var/lib/ganglia/rrds
  

• Start up service during booting, add the follow into file /etc/rc.local ---------> client 要保留，或以其他方式起動

  # Start up ganglia service
  /opt/ganglia/sbin/gmond
  /opt/ganglia/sbin/gmetad	'''--------> client 則可以不用'''
  

• Start up necessary service now

  $ /opt/ganglia/sbin/gmetad
  $ /opt/ganglia/sbin/gmond
  

1.4 Configure frontend php web page

• Copy necessary frontend php scripts

  $ cp -a /opt/src/ganglia-3.0.4/web /var/www/ganglia
  

• Make sure the follow session be set correctly file "/var/www/ganglia/conf.php"

  $gmetad_root = "/var/lib/ganglia";
  $rrds = "$gmetad_root/rrds";
  
  define("RRDTOOL", "/usr/bin/rrdtool");
  
  $ganglia_ip = "127.0.0.1";