In this tutorial, we will show you how to install and configuration of Glances System Monitoring Tool on your CentOS 7 server. For those of you who didn’t know, Glance is a cross-platform command-line tool written in Python to monitor Linux systems. You can use Glances to monitor CPU, Load Average, Memory, Network Interfaces, Disk I/O, Processes and File System spaces utilization of your Linux system.
This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Glances System Monitoring on a CentOS 7 server.
- CPU Information (user-related applications, system core programs and idle programs.
- Total memory Information including RAM, Swap, Free memory etc.
- The average CPU load for the past 1min, 5mins and 15 mins.
- Network Download/Upload rates of network connections.
- A total number of processes, active ones, sleeping processes etc.
- Disk I/O related (read or write) speed details
- Currently mounted devices disk usages.
- Top processes with their CPU/Memory usages, Names and location of the application.
- Shows the current date and time at the bottom.
- Highlights processes in Red that consumes the highest system resources.
Install Glances System Monitoring Tool on CentOS 7
Step 1. First, you need to enable the EPEL repository on your system.
# wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm # rpm -ivh epel-release-7-5.noarch.rpm
Step 2. Installing Glances System Monitoring Tool.
Once the EPEL repository installed, you can install Glances by running the following command:
yum install glances
The installation has been completed. You may now try the following command in the shell and monitor your server resource usages:
glances -t 2
Glances colour codes are as follows:
- Green: Okay
- Blue: Caution
- Violet: Warning
- Red: Critical
By default Glances thresholds are set at:
- Caution: 50
- Warning: 70
- Critical: 90
Congratulations! You have successfully installed Glances. Thanks for using this tutorial for installing Glances System Monitoring Tool on CentOS 7 system. For additional help or useful information, we recommend you to check the official Glances website.