sys_metrics

• Track system performance statistics with collectd, a Unix daemon that collects system metrics periodically and provides mechanisms to store and publish the collected metrics.

• Collecting system metrics allows system administrators to monitor available resources, detect bottlenecks, and make informed decisions about servers and projects.

collectd is an open source daemon that collects system performance statistics periodically and provides mechanisms to store and publish the collected metrics.

Steps to Install & Configure ( so that it knows what data to collect and how to send the values collected ) the daemon :

\\ install
sudo apt-get update
sudo apt-get install collectd

• After running the second command you will see the following message :

After this operation, 226 MB of additional disk space will be used.
Do you want to continue? [Y/n]

• Type Y , then hit Enter to continue installation.

• After the installation is completed , next step is to configure the collectd plugins.

sudo cp /etc/collectd/collectd.conf /home/[username]/workspace/collectd.conf
sudo rm /etc/collectd/collectd.conf
sudo ln -s /home/[username]/workspace/collectd.conf /etc/collectd/collectd.conf

• Now edit the collectd.conf file. [Here you will be enabling certain plugins, updating paths etc.]
• So now restart collectd : sudo systemctl restart collectd
• To check the status of collectd: sudo systemctl status collectd

Note :

• • If everything works fine then we should get the following message in the terminal : Active: active (running)
• • We will also be able to see that collectd was initialized and plugins were loaded in your collectd.log file.

• Verify whether there are issues in the configuration file by running the following:

collectd -t ; echo $?

If you receive an output other than 0 then there is something wrong with collectd.conf file.