First, let’s start with a quick story to comprehend the pain points without K8s services. Suppose you started a new contact center business. Initially, you started with inbound calls for insurance businesses only. You hired around 10 agents. Now the concern is how customers will contact the agents. …

Book Reference: Microservice in Action API Gateway API Gateway is a special service that hides the internal architecture of the application. It ensures a single entry to the application world from outside.

Let’s assume you have a website for listing out the best places to visit for any city. You choose K8s as a solution to host your application. Manual Scaling Whenever you see the spike in the QPS for your application you have two options: Horizontal scaling or Vertical scaling. Horizontal scaling of…

In computer system architecture, hardware devices are connected via the system bus. All hardware devices access the main memory via the system bus. There are device controllers to access each type of peripheral device. The most common controllers are disk controllers, USB controllers, and graphics controllers. Each device controller has…

Book Reference: Operating system concepts by Galvin Storage systems that are used in computers to store bulk and long term data are HDD (Hard Disk Drive) NVM (Non-Volatile Memory) Hard Disk

I advise reading the behavior parameterization before moving further. Let’s take a quick context from behavior parameterization: Problem: You want to sort a list of phones based on the price. Solution: Collections class provides a generic interface you can pass a list of records and your sorting strategy. …

Important features introduced in Java 8 Stream APIs The mechanism to the passcode to the methods The default method in the interface This article will discuss behavior parameterization code by code. Behavior Parameterization It is a mechanism to parameterize the method’s behavior in the code. Similar to the strategy design pattern. Problem Context Let’s…

Batch Processing — Batch processing is the procedure of transforming a set of inputs to another set of outputs. The primary illustrations of batch processing are Reporting and Billing. The concern with batch processing is that it is slow and the outcome is reflected after a long time (hours or days) Stream Processing Stream processing…

A brief introduction to the JVM As per the latest stats, there are around 10 million Java developers around the world. I believe it’s the most common thought process of the developers to primarily focus on the features, functionality, and writing readable & understandable code. But performance is not a…