See instructions for Ubuntu / Debian

See instructions for CentOS / Red Hat 6

See instructions for CentOS / Red Hat 7

Ubuntu / Debian

1. Make sure that you have the latest version of rrdtool and rrdcached:

apt-get install rrdtool 
apt-get install rrdcached

2. Edit /etc/default/rrdcached:

   OPTS="-l unix:/var/run/rrdcached.sock -s andrisoft -m 774 -w 3600 -f 7200 -F -b /var/lib/rrdcached/db/"	

3. Enable rrdcached:
   

   /etc/init.d/rrdcached start
   update-rc.d rrdcached defaults 99

4. Add the following commands to /etc/rc.local and execute them afterwards:
   

   chown andrisoft:www-data /var/run/rrdcached.sock 
   chown andrisoft:andrisoft /var/run/rrdcached.pid
   chmod 770 /var/run/rrdcached.sock

5. Add unix:/var/run/rrdcached.sock to the RRDCache field in Configuration » General Settings » Graphs & Storage. The deletion of existing IP graphs is not needed.

while true; do clear ; echo STATS | socat - /var/run/rrdcached.sock; sleep 1; done

CentOS 6 and Red Hat 6

1. Make sure that rrdtool and rrdtool-perl are installed and are both version 1.4.3 or higher
   • Check rrdtool version:

     rrdtool

     Output should be:

     RRDtool 1.4.7 Copyright 1997-2012...

   • If you have a lower version than 1.4.3, remove the previous installment of rrdtool and all its dependencies:

      rpm -e rrdutils rrdtool-perl rrdtool

   • Download and install rrdtool and perl-rrdtool version 1.4.7

     wget http://pkgs.repoforge.org/rrdtool/perl-rrdtool-1.4.7-1.el6.rfx.x86_64.rpm
     wget http://pkgs.repoforge.org/rrdtool/rrdtool-1.4.7-1.el6.rfx.x86_64.rpm
     rpm -i perl-rrdtool-1.4.7-1.el6.rfx.x86_64.rpm rrdtool-1.4.7-1.el6.rfx.x86_64.rpm

   • Check the current version of rrdtool again and make sure it is 1.4.3 or higher.
2. Edit /etc/sysconfig/rrdcached:

   OPTIONS="-l unix:/var/rrdtool/rrdcached/rrdcached.sock -s andrisoft -m 774 -w 3600 -f 7200 -b /var/rrdtool/rrdcached"
   RRDC_USER=andrisoft

3. Set proper permissions:

   chown andrisoft:andrisoft /var/rrdtool/rrdcached

4. Enable rrdcached:
   

   /etc/init.d/rrdcached start
   chkconfig --level 34 rrdcached on

5. Add the following commands to /etc/rc.local and execute them afterwards:
   

   chown andrisoft:apache /var/rrdtool/rrdcached/rrdcached.sock
   chown andrisoft:andrisoft /var/rrdtool/rrdcached/rrdcached.pid 
   chmod 770 /var/rrdtool/rrdcached/rrdcached.sock

6. Add unix:/var/rrdtool/rrdcached/rrdcached.sock to the RRDCache field in Configuration » General Settings » Graphs & Storage. The deletion of existing IP graphs is not needed.

while true; do clear ; echo STATS | socat - /var/rrdtool/rrdcached/rrdcached.sock; sleep 1; done

CentOS 7 and Red Hat 7

1. Install the latest version of rrdtool:

   yum install rrdtool rrdtool-perl 

2. Create the rrdcached service file.

    nano /usr/lib/systemd/system/rrdcached.service

3. Type the following lines within:

   [Unit]
   Description=RRDCacheD for Andrisoft
   
   [Service]
   Restart=always
   User=andrisoft
   PermissionsStartOnly=yes
   ExecStartPre=/bin/mkdir -p /var/rrdtool/rrdcached/ ; /bin/chown andrisoft:andrisoft /var/rrdtool/rrdcached
   ExecStart=/usr/bin/rrdcached -l unix:/var/rrdtool/rrdcached/rrdcached.sock -s andrisoft -m 774 -w 3600 -g -p /var/rrdtool/rrdcached/rrdcached.pid
   ExecStartPost=/bin/sh -c "/bin/sleep 4; /bin/chown andrisoft:apache /var/rrdtool/rrdcached/rrdcached.sock ; /bin/chown andrisoft:andrisoft /var/rrdtool/rrdcached/rrdcached.pid ; /bin/chmod 770 /var/rrdtool/rrdcached/rrdcached.sock"
   
   [Install]
   WantedBy=multi-user.target
   

4. Save and Exit.
5. Start the rrdcached service

   systemctl enable rrdcached
   systemctl start rrdcached

6. Add unix:/var/rrdtool/rrdcached/rrdcached.sock to the RRDCache field in Configuration » General Settings » Graphs & Storage. The deletion of existing IP graphs is not needed.