Introduction
In this tutorial we learn how to install clustershell on CentOS 8.
What is clustershell
ClusterShell is a set of tools and a Python library to execute commands on cluster nodes in parallel depending on selected engine and worker mechanisms. Advanced node sets and node groups handling methods are provided to ease and improve the daily administration of large compute clusters or server farms. Command line utilities like clush, clubak and nodeset (or cluset) allow traditional shell scripts to take benefit of the features offered by the library.
We can use yum or dnf to install clustershell on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install clustershell.
Install clustershell on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install clustershell using dnf by running the following command:
sudo dnf -y install clustershell
Install clustershell on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install clustershell using yum by running the following command:
sudo yum -y install clustershell
How To Uninstall clustershell on CentOS 8
To uninstall only the clustershell package we can use the following command:
sudo dnf remove clustershell
clustershell Package Contents on CentOS 8
/etc/clustershell
/etc/clustershell/clush.conf
/etc/clustershell/groups
/etc/clustershell/groups.conf
/etc/clustershell/groups.conf.d
/etc/clustershell/groups.conf.d/README
/etc/clustershell/groups.conf.d/genders.conf.example
/etc/clustershell/groups.conf.d/slurm.conf.example
/etc/clustershell/groups.d
/etc/clustershell/groups.d/README
/etc/clustershell/groups.d/cluster.yaml.example
/etc/clustershell/groups.d/local.cfg
/etc/clustershell/topology.conf.example
/usr/share/doc/clustershell
/usr/share/doc/clustershell/COPYING.LGPLv2.1
/usr/share/doc/clustershell/ChangeLog
/usr/share/doc/clustershell/README.md
/usr/share/doc/clustershell/examples
/usr/share/doc/clustershell/examples/check_nodes.py
/usr/share/doc/clustershell/examples/defaults.conf-rsh
/usr/share/doc/clustershell/sphinx
/usr/share/doc/clustershell/sphinx/Makefile
/usr/share/doc/clustershell/sphinx/_static
/usr/share/doc/clustershell/sphinx/_static/clustershell-nautilus-logo200.png
/usr/share/doc/clustershell/sphinx/_static/theme_overrides.css
/usr/share/doc/clustershell/sphinx/api
/usr/share/doc/clustershell/sphinx/api/Defaults.rst
/usr/share/doc/clustershell/sphinx/api/EngineTimer.rst
/usr/share/doc/clustershell/sphinx/api/Event.rst
/usr/share/doc/clustershell/sphinx/api/MsgTree.rst
/usr/share/doc/clustershell/sphinx/api/NodeSet.rst
/usr/share/doc/clustershell/sphinx/api/NodeUtils.rst
/usr/share/doc/clustershell/sphinx/api/RangeSet.rst
/usr/share/doc/clustershell/sphinx/api/Task.rst
/usr/share/doc/clustershell/sphinx/api/index.rst
/usr/share/doc/clustershell/sphinx/api/workers
/usr/share/doc/clustershell/sphinx/api/workers/ExecWorker.rst
/usr/share/doc/clustershell/sphinx/api/workers/StreamWorker.rst
/usr/share/doc/clustershell/sphinx/api/workers/Worker.rst
/usr/share/doc/clustershell/sphinx/api/workers/WorkerPdsh.rst
/usr/share/doc/clustershell/sphinx/api/workers/WorkerPopen.rst
/usr/share/doc/clustershell/sphinx/api/workers/WorkerRsh.rst
/usr/share/doc/clustershell/sphinx/api/workers/WorkerSsh.rst
/usr/share/doc/clustershell/sphinx/api/workers/index.rst
/usr/share/doc/clustershell/sphinx/clustershell-nautilus-logo200.png
/usr/share/doc/clustershell/sphinx/conf.py
/usr/share/doc/clustershell/sphinx/config.rst
/usr/share/doc/clustershell/sphinx/further.rst
/usr/share/doc/clustershell/sphinx/guide
/usr/share/doc/clustershell/sphinx/guide/examples.rst
/usr/share/doc/clustershell/sphinx/guide/index.rst
/usr/share/doc/clustershell/sphinx/guide/nodesets.rst
/usr/share/doc/clustershell/sphinx/guide/rangesets.rst
/usr/share/doc/clustershell/sphinx/guide/taskmgnt.rst
/usr/share/doc/clustershell/sphinx/index.rst
/usr/share/doc/clustershell/sphinx/install.rst
/usr/share/doc/clustershell/sphinx/intro.rst
/usr/share/doc/clustershell/sphinx/release.rst
/usr/share/doc/clustershell/sphinx/tools
/usr/share/doc/clustershell/sphinx/tools/clubak.rst
/usr/share/doc/clustershell/sphinx/tools/cluset.rst
/usr/share/doc/clustershell/sphinx/tools/clush.rst
/usr/share/doc/clustershell/sphinx/tools/index.rst
/usr/share/doc/clustershell/sphinx/tools/nodeset.rst
/usr/share/man/man1/clubak.1.gz
/usr/share/man/man1/cluset.1.gz
/usr/share/man/man1/clush.1.gz
/usr/share/man/man1/nodeset.1.gz
/usr/share/man/man5/clush.conf.5.gz
/usr/share/man/man5/groups.conf.5.gz
/usr/share/vim/vimfiles/ftdetect/clustershell.vim
/usr/share/vim/vimfiles/syntax/clushconf.vim
/usr/share/vim/vimfiles/syntax/groupsconf.vim
References
Summary
In this tutorial we learn how to install clustershell on CentOS 8 using yum and dnf.
