Functional Programming

Flinkathon: Why Flink is better for Stateful Streaming applications?

Stream processing is a way to query a continuous stream of data and draw conclusions from it within the boundaries of a real-time scenario. For example, receiving an alert as soon as a fraudulent transaction is done via a credit/debit card. The 2 main types of stream processing done are: Stateless: Where every event is handled completely independent from the preceding events. Stateful: Where a Continue Reading

Serverless – Are you ready to 737 Max 8 your core business?

Ok, I agree that this is not the best way to draw and comparison and some might find it in bad spirit as well. Apologies for that. But, I am amazed at what the organizations are willing to bet on given the lure of not managing your infrastructure. After the horrendous Max 8 episode, I have become a firm believer of the fact that Technology, Continue Reading

Knoldus-Scala-Spark-Services

JPMS in Java9

Java Platform Modular System is commonly known as JPMS. The concept of JPMS i.e. Java Platform Module System came in Java 9. Its development was first started in 2005 and finally in 2017, this concept came under the project named Jigsaw. Until Java 8, we used jar files, but from Java 9 onwards, we will be using modules. Modularity is the basic rule of good Continue Reading

Running jmx2graphite as a java agent to push the JMX metrics into Graphite

In my previous blog, we discussed how to monitor a Kafka stream application using Grafana and Graphite. In this solution, we used jmx2graphite as a metrics exporter which takes the metrics from the Jolokia URL where Jolokia exposes the JMX metrics and pushes those metrics to Graphite. But, there is a problem with this solution that we need to deploy one jmx2graphite per service. So Continue Reading

Getting Started With Akka Http Cache

To build a rest point application, there are many options available like Akka Http, Finagle, Play Framework, Lagom etc. In our project, we are using Akka HTTP for building rest applications. We have lots of requests related to analytics. There are many requests which are very expensive. So, we faced an issue where our application was taking time to respond to some analytics. We have Continue Reading

Knoldus-Scala-Spark-Services

Installation and switching between multiple versions of Java

Having trouble in keeping multiple versions of Java in your single system? You have approached at the right place for seeking the solution. In this blog, we will learn how to keep multiple versions of java in your system and how to switch between them as per your convenience. Before moving forward, let’s have a basic understanding of what is SDKMAN?

Tale of a Container’s file system

Namespace, CGroup, and Union file-system are the basic building blocks of a container. Let’s have our focus on file-system. Why yet another file-system for the container? Are Conventional Linux file-systems like ext2, ext3, ext4, XFS etc. not good enough to meet the purpose? In this blog post, I will try to answer these questions. Here we will be delving deeply into the Union File System Continue Reading

Combinators- A functional approach of error handling in ‘Rust’

In this world, everyone is interested in the spikes whether it is related to professional thing or personal. In this blog, I am going to give you spikes of the programming practices in Rust. Error Handling – process of handling the possibility of failure Today, every programmer is worried whether he has implemented error handling in right manner or not. There are various ways to Continue Reading

Image Comparison with AWS Rekognition using JAVA

AWS Rekognition is a service that enables you to add image and video analysis to your application. So this is the place where you’ll get to know how to embodied AWS Rekognition with your JAVA application.

Embody System Commands in Rust Programming

System Commands helps users to communicate with the Operating System and with the help of that commands user can operate the whole Operating System(OS). System commands are handled by the shell or command interpreter of the Operating System.In this blog, I will show you how to execute System Commands through Rust Programming.

Welcoming RUST to the world of IoT

Breaking away the stereotypes of a blog, let’s start with a question. What’s our future? If I was asked this question, it has to be IoT. Internet of Things has already taken the technology world by a storm and is continuing to do so. While learning about IoT, its uses and all that stuff, a desire to make my own IoT framework arose. I started Continue Reading

List in Python

In this blog, we are going to discuss the list data structure of python. The list is a collection which is: • Ordered : [1,2] is not equal to [2,1] • Allows duplicate members: [1, 1] is allowed. • Mutable: allows modification of elements of the list after its creation. • Dynamic: allows addition, modification or deletion of elements. The differentiating feature between arrays from Continue Reading

Introduction to Django

In this blog, we are going to talk about Django. Before that let’s understand what is web framework and why do we need it? A web framework is a software tool that helps us develop application faster and smarter. It eliminates the need to write a lot of repetitive code and saves time. What is Django? Django is a free open source high-level web framework Continue Reading

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