How To Install repmgr on Debian 9
Introduction
In this tutorial we learn how to install repmgr on Debian 9.
What is repmgr
repmgr is:
Since version 9.0, PostgreSQL allow you to have replicated hot standby servers which you can query and/or use for high availability. While the main components of the feature are included with PostgreSQL, the user is expected to manage the high availability parts.
repmgr allows you to monitor and manage your replicated PostgreSQL databases as a single cluster.
This is a metapackage that depends on the version specific packages.
There are three methods to install repmgr on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install repmgr Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install repmgr using apt-get by running the following command:
sudo apt-get -y install repmgr
Install repmgr Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install repmgr using apt by running the following command:
sudo apt -y install repmgr
Install repmgr 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 Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install repmgr using aptitude by running the following command:
sudo aptitude -y install repmgr
How To Uninstall repmgr on Debian 9
To uninstall only the repmgr package we can use the following command:
sudo apt-get remove repmgr
Uninstall repmgr And Its Dependencies
To uninstall repmgr and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove repmgr
Remove repmgr Configurations and Data
To remove repmgr configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge repmgr
Remove repmgr configuration, data, and all of its dependencies
We can use the following command to remove repmgr configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge repmgr
Dependencies
repmgr have the following dependencies:
References
Summary
In this tutorial we learn how to install repmgr package on Debian 9 using different package management tools: apt, apt-get and aptitude.
