Learnitweb

Author: Editorial Team

  • Java program to separate odd and even numbers in a list of integers

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    Approach: Use Collectors.partitioningBy() to separate even and odd numbers into a Map<Boolean, List<Integer>>. Output:

  • Introduction to Helm

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    What is Helm? Helm is a package manager for Kubernetes, similar to package managers on other platforms: Like these package managers, Helm helps install, upgrade, and manage software—but in the Kubernetes ecosystem. Helm works with charts, which are like packages containing all the Kubernetes resource templates and configurations needed for an application. These charts can…

  • Hibernate N+1 Problem

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    Introduction The N+1 problem in Hibernate is a common performance issue that occurs when an application executes excessive database queries due to improper handling of relationships. This can severely degrade application performance, especially when dealing with large datasets. Understanding the N+1 Problem What is the N+1 Problem? The N+1 problem occurs when Hibernate retrieves a…

  • One-to-One Mapping in Hibernate

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    Introduction One-to-One mapping in Hibernate represents a relationship where each record in one table corresponds to exactly one record in another table. This is commonly used when entities have exclusive relationships, such as User and Address. In this tutorial, we will: Project Setup Ensure you have the following dependencies in your pom.xml: Database Configuration Configure…

  • Ingress in Kubernetes

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    Introduction NodePort Services in Kubernetes operate on high port numbers ranging from 30000 to 32767. To access your application externally, you need to know the Node’s IP address or hostname along with the port number. This setup is often impractical in production environments, especially when dealing with multiple applications or dynamic infrastructure. LoadBalancer Services solve…

  • LoadBalancer Service in Kubernetes

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    Introduction In a Kubernetes cluster, when you deploy an application, you often need it to be accessible from outside the cluster. Kubernetes provides several types of Services to expose your applications to external traffic, one of which is the LoadBalancer Service. The LoadBalancer Service is commonly used when you want to expose your application to…

  • NodePort Service in Kubernetes

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    Introduction In Kubernetes, a NodePort Service is a type of Kubernetes Service that exposes a set of Pods to external traffic (outside the cluster) by opening a specific port on each Node (VM, bare metal, or container host). This allows users to access the application using the Node’s IP address and the NodePort (a port…

  • ClusterIP Service in Kubernetes

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    Introduction In Kubernetes, a ClusterIP Service is a type of Service that provides a stable virtual IP address (ClusterIP), allowing communication between different Pods within the cluster. This IP address is only accessible from within the cluster and acts as a stable entry point for connecting to application Pods. The ClusterIP is automatically assigned and…

  • Kubernetes Services – An Introduction

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    Introduction In Kubernetes, Pods are the fundamental units of deployment that run your application containers. However, when Pods fail, scale, or are updated, they often get replaced with new ones having different IP addresses. This dynamic behavior creates challenges in managing stable network communication between different Pods. In this tutorial, we will understand why you…

  • Understanding Stack Abstract Data Type (ADT)

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    Introduction to Stack ADT In computer science, a Stack is an abstract data type (ADT) that serves as a collection of elements, with two principal operations: A Stack follows the LIFO (Last In, First Out) principle. This means the last item inserted will be the first item removed. It is similar to a deck of…