How to Enable Replication for PostgreSQL on Ubuntu

data replication, postgres replication, postgresql replication

PostgreSQL replication is a method of copying and maintaining database objects, such as schemas and tables, in multiple database systems distributed across different locations. This article will guide you through the steps to set up and enable data replication for PostgreSQL on Ubuntu. Types of PostgreSQL Data Replication PostgreSQL data replication refers to the process … Read more

Understanding Java Memory Leaks and Free Tools For Detection

java memory leak

This article will explain what is a Java memory leak and suggest tools for detection. Memory leaks can cause a Java program to run slowly or crash altogether. Detecting memory leaks in Java can be a challenging task, especially if you don’t have the right tools and techniques at your disposal. In this blog post, … Read more

RPM Installation Dependencies – Explained

rpm dependencies, linux, ubuntu

You will learn how to manage dependencies during RPM installation on Linux servers such as CentOS, RHEL, Fedora, and Ubuntu. We’ll provide step-by-step instructions on how to properly handle dependency issues and solve common issues. Whether you build your own RPM or use third-party, we’ll cover it in this guide. About RPM and Dependencies Each … Read more

Build an RPM in CentOS, RHEL and Ubuntu Linux

build rpm linux, build rpm ubuntu

RPM Package Manager, commonly known as RPM, is a versatile open-source package management tool that provides a simple way to build, install, verify, update, and uninstall software packages. This article guides you through the steps to build an RPM package on various Linux distributions: Ubuntu, CentOS, Fedora, and Red Hat Enterprise Linux (RHEL). Before proceeding, … Read more

Cassandra Compaction Strategies for Faster Reads and Writes

cassandra compaction strategies, compaction strategy

Introduction to Cassandra Compaction Strategies In Apache Cassandra, compaction is one of the most critical processes for maintaining database performance and efficiency. It’s the system’s way of merging and reorganizing SSTables (Sorted String Tables) to reduce redundancy, optimize disk space usage, and ensure fast read and write operations. Without proper compaction, the database could suffer … Read more

Understanding Cassandra Data Modeling with Best Practices

cassandra, data model, data modeling

Apache Cassandra is a super powerful NoSQL database that’s designed to handle massive amounts of data spread across multiple servers. It’s the go-to choice for many modern applications that need high scalability and performance. But here’s the deal: to truly unlock Cassandra’s potential, you need to nail the data modeling part. Unlike traditional databases, Cassandra … Read more

10 Ways To Improve Cassandra Read Performance

cassandra compaction, compaction strategies, compaction strategy

Enhancing Cassandra’s read performance reduces latency and improves efficiency. Before exploring optimization strategies, let’s first examine how Cassandra performs with reads versus writes and typical latency expectations. Is Cassandra Read or Write Optimized? Cassandra is primarily write-optimized. Its architecture excels at handling high write throughput while ensuring durability and scalability. Data is distributed across nodes … Read more

Understanding PostgreSQL Reset Statistics with pg_stat_reset

PostgreSQL Reset Statistics with pg_stat_reset

This article will explore focus on how to PostgreSQL reset statistics using the pg_stat_reset command. We will discuss what this command does, when and why to use it, and the impact it has on your PostgreSQL database. Efficiency is important, so check out this article on how to reload config using pg_ctl without restarting the … Read more

PostgreSQL By Example: Reload pg_hba.conf

postgresql active queries

This file controls client authentication, and its modifications won’t take effect until you reload pg_hba.conf. In this comprehensive guide, we’ll answer the top ten questions about reloading the pg_hba.conf file. What is the command to reload the pg_hba.conf file in PostgreSQL? The command to reload pg_hba.conf file in PostgreSQL is fairly simple. Use the following … Read more

How to Append Files in Linux: A Comprehensive Guide

how to append files in linux

If you are a Linux user, understanding how to append files in Linux is an essential skill that will undoubtedly prove useful in various scenarios. The term ‘append’ in computing means to add or attach something at the end. In Linux, it specifically refers to adding data to the end of a file. This article … Read more

Guide to Cassandra Tombstones & Performance Impacts

cassandra tombstones

In this post, we will explore what tombstones are, why they can negatively affect Cassandra performance, and how to avoid them. Apache Cassandra is a highly scalable and distributed NoSQL database that uses a unique data model designed to handle large amounts of data across many commodity servers, with high availability and fault tolerance. However, … Read more

Add a Code Coverage Build Gate in SonarQube for Java Projects

java, software, software development

In software development, code coverage refers to the percentage of code that is covered by automated tests. Code coverage is a critical metric for determining the effectiveness of your testing strategy. SonarQube is a popular open-source platform for continuous code quality inspection that can help you keep track of your code coverage. In this blog … Read more

Java HashMap vs HashTables – Explained

java hashmap

Hash tables are a core data structure in computer science, used to create dictionaries, associative arrays, and sets. In Java, the two main hash table implementations are HashMap and HashTable. While they share similar functionality, they differ in performance, thread-safety, and flexibility. This article highlights the key functional and performance differences between Java’s HashMap and … Read more

Setting Up Laravel on Docker MacOS Ventura: Step-by-Step

laravel,php

If you’re a Laravel developer using macOS Ventura, setting up Docker can make your workflow smoother, more portable, and consistent. Docker provides a containerized environment that eliminates “it works on my machine” issues and makes sharing your development setup simple. This guide walks you through setting up Laravel on Docker, with clear instructions and compatible … Read more

9 Signs Your Smartphone Needs a Highly Durable Case

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Your smartphone is your constant companion—whether for work, play, or staying connected with loved ones. But have you thought about how well it’s shielded from the hazards of daily life? Phones are expensive and fragile, and investing in a highly durable case can save you from costly repairs or replacements. Below are nine signs it’s … Read more

6 New Impressive Features of Snapdragon 820 Smartphones

If you’re thinking about upgrading, smartphones powered by the Snapdragon 820 processor offer some incredible new features. Qualcomm has packed this chip with advancements that improve speed, connectivity, and overall performance. Let’s explore the highlights. 1. Smarter Object Recognition The Snapdragon 820 makes your smartphone camera smarter. It recognizes objects and entire scenes in real … Read more

6 Mistakes When Using Smartphones At Work

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Smartphones put powerful mobile computing capabilities at our fingertips. There are many apps that can expand the usability and versatility of a smartphone beyond manufacturer’s original design. Unfortunately, smartphones can really hurt our career if we don’t use them appropriately. 1. Trying to multitask during important meetings Multitasking is encouraged in workplace to enhance productivity. … Read more

Manage Cron Jobs with Codeigniter 3.0 and MySQL

I didn’t like managing all of my website’s CRON jobs via CPanel because I couldn’t easily see what my jobs were and when they will run next. So I decided to manage the CRON in my applications database and with a simple PHP script. You will need to only create 1 CRON job in Cpanel … Read more

Categories PHP

Root Your Samsung Galaxy S6 in 5 Easy Steps

People always ask me why they should root their phone. I ask them why not? You can get more out of your device by rooting it. Break free and turn into a hotrod by customize just about anything you want. You could partition the drive and add another operating system, get the latest version of … Read more

Google Chrome – Block Unwanted Pop-up Ads (Solved!)

pop up ads, popup ads, advertisement

1. Introduction Unwanted ads are a pain. They clutter websites, slow down browsing, and sometimes even bring security risks. If you’ve ever thought, “I just want to block these ads in Chrome,” you’re definitely not the only one. The good news? There are plenty of ways to take control and enjoy a smoother online experience. … Read more