How To Install ctdb on Ubuntu 20.04
Introduction
In this tutorial we learn how to install ctdb
on Ubuntu 20.04.
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.
Package: ctdb Architecture: amd64 Version: 2:4.11.6+dfsg-0ubuntu1.8 Multi-Arch: foreign Priority: extra Section: universe/net Source: samba Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: Debian Samba Maintainers [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 3565 Depends: iproute2, lsb-base (>= 3.0-6), psmisc, samba-libs (= 2:4.11.6+dfsg-0ubuntu1.8), sudo, tdb-tools, time, libbsd0 (>= 0.0), libc6 (>= 2.14), libpopt0 (>= 1.14), libtalloc2 (>= 2.2.0~), libtdb1 (>= 1.4.2~), libtevent0 (>= 0.10.0~), libwbclient0 (= 2:4.11.6+dfsg-0ubuntu1.8) Recommends: ethtool, python3-etcd, librados2 (>= 0.72.2) Suggests: logrotate, lsof Filename: pool/universe/s/samba/ctdb_4.11.6+dfsg-0ubuntu1.8_amd64.deb Size: 643048 MD5sum: 1ebe30f04730810beaf31c5395918703 SHA1: 501a8f9c7e4141f79d8f0d559c1defc4e2cc42c2 SHA256: ee7d57386e736d8f6d36425cd49ab6ba007e1b7873fd5ba7511eba5005579afe SHA512: 5e46760ae4e4c4ff32286143df0e59460bfc0a325aeae270bb543a21af07cd13334d4df02fefdcf1ac3ad53979d66bdb0f916bc1cbb3245e362f8743b872e9a5 Homepage: http://www.samba.org Description-en: clustered database to store temporary data 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.
Package: ctdb Architecture: amd64 Version: 2:4.11.6+dfsg-0ubuntu1 Multi-Arch: foreign Priority: extra Section: universe/net Source: samba Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: Debian Samba Maintainers [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 3562 Depends: iproute2, lsb-base (>= 3.0-6), psmisc, samba-libs (= 2:4.11.6+dfsg-0ubuntu1), sudo, tdb-tools, time, libbsd0 (>= 0.0), libc6 (>= 2.14), libpopt0 (>= 1.14), libtalloc2 (>= 2.2.0~), libtdb1 (>= 1.4.2~), libtevent0 (>= 0.10.0~), libwbclient0 (= 2:4.11.6+dfsg-0ubuntu1) Recommends: ethtool, python3-etcd, librados2 (>= 0.72.2) Suggests: logrotate, lsof Filename: pool/universe/s/samba/ctdb_4.11.6+dfsg-0ubuntu1_amd64.deb Size: 636632 MD5sum: ab4815d7aca8ff537b001014f66987c9 SHA1: 25a0154dd79716e5ff1757196b20baaea5e63f4d SHA256: b0fdabb3ee4f54ef9765e91490ccd7669cec4cfe0d24b6c228d2f77f834cf3a8 Homepage: http://www.samba.org Description-en: clustered database to store temporary data 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 20.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install 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 20.04
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 20.04, 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 20.04 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
References
Summary
In this tutorial we learn how to install ctdb
package on Ubuntu 20.04 using different package management tools: apt
, apt-get
and aptitude
.