Introduction Most of us use double(or float) as primary floating point data type in java. In this article we will see how to avoid the errors which can arise during calculations in the decimal part of a number. Samples with Explanations Let’s have a look at the few samples. It will be a simple…

Introduction In this article we will be discussing about Heap and Stack memory in java and what is the life of Objects in our application with examples. To run an application in an optimal way, JVM divides memory into stack and heap memory. Whenever we declare new variables and objects, call…

Rolling updates provide a mechanism for updating containers in a cluster without downtime. This powerful Kubernetes feature allows you to update containers while maintaining high availability. To see this in action we’ll create a Deployment consisting of 3 nginx Pods using the definition below. …

Introduction Java programming language works very efficiently with multithreaded applications which require the tasks to be executed concurrently in a thread. It becomes difficult for any application to execute a large number of threads simultaneously. …

Kubernetes Deployments A Kubernetes Deployment object provides a means of managing a group of Pod instances, known as replicas. The Deployment tells Kubernetes the type of Pod you want to run and the number of Pod instances. This is known as the desired state. Kubernetes will actively monitor the number of active…

Labels Labels are key/value pairs that are used to add metadata to Kubernetes objects. They can be used to select and group subsets of objects in the cluster. Labels are added to an object in the metadata.labels section of the object descriptor as shown in the two Pod definitions below. apiVersion…

Introduction In this article, we learn how to create a simple spring boot web application and deploy it on the AWS Elastic Beanstalk. Deploying a Spring boot application on AWS Elastic Beanstalk is a simple process. We can use the AWS Elastic Beanstalk service to deploy web applications and services and…

Introduction In this article, we are going to do a basic load testing with Apache JMeter which is an open source software and It can be used to simulate loads of various scenarios and output performance data in several ways, including CSV and XML files and graphs. Since it is an…

In this article, we are going to explore how to reload application properties in spring boot. We have many options available in spring boot, but we will pick the easiest one. Refresh beans with @ConfigurationProperties For Reloading properties, spring cloud has introduced @RefreshScope annotation which can be used for refreshing…