| by Scott Kilroy

How to Create a KVM Virtual Machine Template

A virtual machine template is essentially a copy of the installed virtual machine that comes in handy when you want to deploy multiple instances of virtual machines. Creating a template is a 3 step
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How to Set Up High Availability for Resource Manager – Part 6

YARN is the Processing Layer of Hadoop, which consists of the Master (Resource Manager) and Slave (Node Manager) services to process the data. Resource Manager (RM) is the critical component that is responsible for
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| by Scott Kilroy

How to Manage Virtual Machines in KVM Using Virt-Manager

The virt-manager application provides an easy-to-use interface that allows users to perform a wide range of tasks including creating guest machines and assigning critical virtual resources such as CPU, memory, and disk space. Users
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How to Create Virtual Machines in KVM Using Virt-Manager

As you get started, ensure that the KVM hypervisor is installed on your system. An acronym for Kernel-based Virtual Machine, KVM is a combination of kernel modules & utilities needed to run virtual machines
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How to Install Apache Kafka in CentOS/RHEL 7

Apache Kafka is a powerful messaging engine, which is widely used in BigData projects and the Data Analytics life cycle. It is an Open-source platform to build real-time data streaming pipelines. It is a
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| by Scott Kilroy

Managing KVM Virtual Machines with Cockpit Web Console in Linux

Cockpit is a free and open-source front-end tool that provides administrative access to Linux systems. It allows system administrators to monitor, manage, and troubleshoot Linux servers. It provides an intuitive web interface that easy
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How to Install MariaDB on CentOS 8

MariaDB is an open-source, community-developed relational database management system. It is forked from MySQL and created and maintained by the developers who created MySQL. MariaDB is intended to be highly compatible with MySQL but

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How to Set Up High Availability for Namenode – Part 5

Hadoop has two core components which are HDFS and YARN. HDFS is for storing the Data, YARN is for processing the Data. HDFS is Hadoop Distributed File System, it has Namenode as Master Service

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| by Scott Kilroy

How to Migrate CentOS 8 Installation to CentOS Stream

This week, Red Hat created a huge public outcry over its announcement regarding the future of CentOS. Red Hat, in a shocking move, is discontinuing CentOS Project in favor of the rolling release, CentOS
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How to Install PHP 8 on CentOS/RHEL 8/7

PHP is a popular open-source server-side scripting language that is integral in developing dynamic webpages. PHP 8.0 is finally out and was released on November 26th, 2020. It promises lots of improvements and optimizations

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How to Install CDH and Configure Service Placements on CentOS/RHEL 7 – Part 4

In an earlier article, we have explained the installation of Cloudera Manager, in this article, you will learn how to install and configure CDH (Cloudera Distribution Hadoop) in RHEL/CentOS 7. While installing the CDH
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