How To Install corosync-qdevice on Ubuntu 18.04
Introduction
In this tutorial we learn how to install corosync-qdevice on Ubuntu 18.04.
What is corosync-qdevice
corosync-qdevice is:
The Corosync Cluster Engine is a Group Communication System with additional features for implementing high availability within applications. The project provides four C Application Programming Interface features:
- A closed process group communication model with virtual synchrony guarantees for creating replicated state machines.
- A simple availability manager that restarts the application process when it has failed.
- A configuration and statistics in-memory database that provide the ability to set, retrieve, and receive change notifications of information.
- A quorum system that notifies applications when quorum is achieved or lost.
This package contains the quorum device daemon and utilities.
There are three methods to install corosync-qdevice on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install corosync-qdevice Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install corosync-qdevice using apt-get by running the following command:
sudo apt-get -y install corosync-qdevice
Install corosync-qdevice Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install corosync-qdevice using apt by running the following command:
sudo apt -y install corosync-qdevice
Install corosync-qdevice Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install corosync-qdevice using aptitude by running the following command:
sudo aptitude -y install corosync-qdevice
How To Uninstall corosync-qdevice on Ubuntu 18.04
To uninstall only the corosync-qdevice package we can use the following command:
sudo apt-get remove corosync-qdevice
Uninstall corosync-qdevice And Its Dependencies
To uninstall corosync-qdevice and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove corosync-qdevice
Remove corosync-qdevice Configurations and Data
To remove corosync-qdevice configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge corosync-qdevice
Remove corosync-qdevice configuration, data, and all of its dependencies
We can use the following command to remove corosync-qdevice configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge corosync-qdevice
References
Summary
In this tutorial we learn how to install corosync-qdevice package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
