How To Install ctdb on Ubuntu
Posted on April 1, 2023 (Last modified on May 20, 2023 )
3 minutes • 531 words
Introduction
In this tutorial we learn how to install ctdb on Ubuntu.
What is ctdb
ctdb is:
CTDB is a cluster implementation of the TDB database used by Samba and other projects to store temporary data. If an application is already using TDB for temporary data it is very easy to convert that application to be cluster aware and use CTDB instead.
CTDB provides the same types of functions as TDB but in a clustered fashion, providing a TDB-style database that spans multiple physical hosts in a cluster.
Features include:
- CTDB provides a TDB that has consistent data and consistent locking across all nodes in a cluster.
- CTDB is very fast.
- In case of node failures, CTDB will automatically recover and repair all TDB databases that it manages.
- CTDB is the core component that provides pCIFS (“parallel CIFS”) with Samba3/4.
- CTDB provides HA features such as node monitoring, node failover, and IP takeover.
- CTDB provides a reliable messaging transport to allow applications linked with CTDB to communicate to other instances of the application running on different nodes in the cluster.
- CTDB has pluggable transport backends. Currently implemented backends are TCP and Infiniband.
- CTDB supports a system of application specific management scripts, allowing applications that depend on network or filesystem resources to be managed in a highly available manner on a cluster.
There are three methods to install ctdb on Ubuntu. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install ctdb Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install ctdb using apt-get by running the following command:
sudo apt-get -y install ctdb
Install ctdb Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install ctdb using apt by running the following command:
sudo apt -y install ctdb
Install ctdb 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 ctdb using aptitude by running the following command:
sudo aptitude -y install ctdb
How To Uninstall ctdb on Ubuntu
To uninstall only the ctdb package we can use the following command:
sudo apt-get remove ctdb
Uninstall ctdb And Its Dependencies
To uninstall ctdb and its dependencies that are no longer needed by Ubuntu, we can use the command below:
sudo apt-get -y autoremove ctdb
Remove ctdb Configurations and Data
To remove ctdb configuration and data from Ubuntu we can use the following command:
sudo apt-get -y purge ctdb
Remove ctdb configuration, data, and all of its dependencies
We can use the following command to remove ctdb configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge ctdb
Dependencies
ctdb have the following dependencies:
References
Summary
In this tutorial we learn how to install ctdb package on Ubuntu using different package management tools: apt, apt-get and aptitude.