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 can also configure networking, pause, and resume the guest machines as well as monitor performance. As you get started, make sure
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 distributed publish-subscribe platform with Reliability, Scalability, and Durability. We can have Kafka as a standalone or as a cluster. Kafka stores
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 to navigate and keep track of the salient system features and resources. There’s a whole lot of things you can do
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 and Datanode as Slave Service. Namenode is the critical component of Hadoop which is storing the metadata of data stored in
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 new features have been added to MariaDB like new storage engines (Aria, ColumnStore, MyRocks). In this article, we will take a
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 Stream. The focus now shifts to CentOS Stream as the main CentOS distribution. In fact, at the end of 2021, curtains
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 which are set to streamline how developers write and interact with PHP code. In this guide, you will learn how to
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 parcel, we have to ensure the Cloudera Manager and CDH compatibility. Cloudera version is having 3 parts – <major>.<minor>.<maintenance>. Cloudera Manager
How to Install and Configure Cloudera Manager on CentOS/RHEL 7 – Part 3
In this article, we described the step by step process to install Cloudera Manager as per industrial practices. In Part 2, we already have gone through the Cloudera Pre-requisites, make sure all the servers are prepared perfectly. Here we are going to have 5 node cluster where 2 masters and 3 workers. I have used
Setting Up Hadoop Pre-requisites and Security Hardening – Part 2
Hadoop Cluster Building is a step by step process where the process starts from purchasing the required servers, mounting into the rack, cabling, etc. and placing in Datacentre. Then we need to install the OS, it can be done using kickstart in the real-time environment if the cluster size is big. Once OS installed, then