How To Install mha4mysql-node on Ubuntu 18.04
Introduction
In this tutorial we learn how to install mha4mysql-node
on Ubuntu 18.04.
What is mha4mysql-node
mha4mysql-node is:
MHA performs automating master failover and slave promotion with minimal downtime, usually within 10-30 seconds. MHA prevents replication consistency problems and saves on expenses of having to acquire additional servers.
All this with zero performance degradation, no complexity (easy-to-install) and requiring no change to existing deployments.
There are three methods to install mha4mysql-node
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 mha4mysql-node Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install mha4mysql-node
using apt-get
by running the following command:
sudo apt-get -y install mha4mysql-node
Install mha4mysql-node Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install mha4mysql-node
using apt
by running the following command:
sudo apt -y install mha4mysql-node
Install mha4mysql-node 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 mha4mysql-node
using aptitude
by running the following command:
sudo aptitude -y install mha4mysql-node
How To Uninstall mha4mysql-node on Ubuntu 18.04
To uninstall only the mha4mysql-node
package we can use the following command:
sudo apt-get remove mha4mysql-node
Uninstall mha4mysql-node And Its Dependencies
To uninstall mha4mysql-node
and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove mha4mysql-node
Remove mha4mysql-node Configurations and Data
To remove mha4mysql-node
configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge mha4mysql-node
Remove mha4mysql-node configuration, data, and all of its dependencies
We can use the following command to remove mha4mysql-node
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge mha4mysql-node
References
Summary
In this tutorial we learn how to install mha4mysql-node
package on Ubuntu 18.04 using different package management tools: apt
, apt-get
and aptitude
.