Ubuntu
How to Install Apache Solr 9.8 on Ubuntu 24.04
Apache Solr is a powerful, open-source search platform built on Apache Lucene. It is designed for fast and efficient searching,…
BIG-DATA
Hadoop Commands to Manage Files on HDFS
Hadoop Distributed File System (HDFS) is a key component of the Hadoop ecosystem, designed to store vast amounts of data…
BIG-DATA
HADOOP/HDFS ls: ‘.’: No such file or directory (Resolved)
The Hadoop Distributed File System (HDFS) is a core component of the Apache Hadoop project. It provides a distributed storage…
Security
How to Setup Let’s Encrypt SSL on Ubuntu 18.04 & 16.04 LTS
Let’s Encrypt is a certificate authority (CA) providing free SSL/TLS certificates. You can get a valid SSL certificate for your…
Gentoo
Setting Up Startup and Shutdown Scripts on Gentoo Linux
In Gentoo Linux, one of the most powerful and flexible distributions, there is an important tool called the init system.…
BIG-DATA
Hadoop – Namenode is in safe mode
Namenode loads the filesystem state from fsimage and stays in safe mode and wait for data nodes to report their…
SQL Server
FIXED MSSQL Error 3154 – The backup set holds a backup of a database other than the existing database
Using SQL Query Window: Use WITH REPLACE option with the RESTORE command on MSSQL query window. Change database name and…
Programming
How To Install Golang 1.23 CentOS/RHEL 9/8
Golang, also known as Go, has emerged as a popular programming language for modern software development due to its simplicity…
BIG-DATA
The Beginners Guide to Running a Wordcount MapReduce Job in Hadoop
In the realm of big data, Hadoop stands out as a cornerstone technology, enabling the processing of vast datasets across…
JAVA
How to Install JAVA 8 on CentOS/RHEL 9/8 and Fedora
Java, a popular programming language and computing platform, is essential for many software applications and development projects. This article guides…