MySQL is a popular and widely used database management system that stores and organizes data and allows users to retrieve it. It comes with a vast array of options that grant users certain permissions to tables and databases. In this guide, you will learn how to create a new user and grant permissions in the
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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 and Datanode as Slave Service. Namenode is the critical component of Hadoop which is storing the metadata of data stored in
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
The Best RedHat-based Linux Distributions
Red Hat Enterprise Linux is a hugely popular enterprise-level operating system that supports a diverse range of open-source technologies such as Ansible automation, Hybrid Cloud, virtualization, and containerization. In this guide, we highlight some of the most popular and widely used Linux distributions based on Red Hat Enterprise Linux. 1. CentOS Built around the Redhat
How to Install Microsoft Teams on Linux
Teams is one of the popular collaboration platform created by Microsoft, that come in bundled with Office 365 suite. You are free to download and use teams without Office 365 subscription. Microsoft in December 2019 announced, Teams is available for Public preview on Linux distributions. It is to be noted that it is the first
A Basic Guide to Linux Boot Process
Every time you power on your Linux PC, it goes through a series of stages before finally displaying a login screen that prompts for your username or password. There are 4 distinct stages that every Linux distribution goes through in a typical boot-up process. User Login Prompt In this guide, we will highlight the various
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
How to Manage Containers Using Podman and Skopeo in RHEL 8
One of the challenges developers faced in the past is getting applications to run reliably across multiple computing environments. Oftentimes, applications didn’t run as expected or encountered errors and failed altogether. And that’s where the concept of containers was born. What are Container Images? Container images are static files that ship with executable code that