Using Linux Chroot Environments
Chroot environments create isolation for testing purposes, says Jack Wallen, so “you can be certain whatever application you’re testing won’t have access to the system environment, keeping you safe from any adverse effects from the app.”
In this article, Wallen shows how to use the Atoms app to easily set up and use chroot environments.
Learn more at TechRepublic.
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Warewulf Cluster Manager – Completing the Environment
Installing and configuring Warewulf on the master node and booting the compute nodes creates a basic cluster installation; however, a little more configuration to the master remains and a few other tools must be installed and configured for the Warewulf cluster to become truly useful for running HPC applications.
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Warewulf Cluster Manager – Master and Compute Nodes
The Warewulf stateless cluster tool is scalable and highly configurable, and it eases the installation, management, and monitoring of HPC clusters.
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Warewulf Cluster Manager – Administration and Monitoring
In the last of this four-part series on using Warewulf to build an HPC cluster, I focus a bit more on the administration of a Warewulf cluster, particularly some basic monitoring and the all-important resource manager.
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openlava – Hot Resource Manager
HPC systems are really designed to be shared by several users. One way to share them is through a software tool called a resource manager. Openlava is an open source version of the commercial scheduler LSF. It shares the robustness of LSF while being freely available, very scalable, and easy to install and customize.
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News for Admins
In the news: Canonical now offers an Ubuntu Pro image for AWS; Vulnerable Docker instance sought out by Monero malware; Cumulus Networks enhances their network-specific Linux; and SUSE adds SUSE Linux Enterprise to the Oracle Cloud Infrastructure.
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