Scala

ScalaGeek-Why Reactive Architecture?

Reading Time: 5 minutes In my previous blog. I discussed some In-build functionalities of ScalaGeek that makes it unique and flexible. Now In this blog, I will discuss the architecture and the tech stack that is used in ScalaGeek. Technology Stack In the ScalaGeek we have used five primary technologies for Back-end and two are used for front-end:1. Scala2. Akka3. Kafka4. Real-time database5. Firestore6. Angular 87. IonicNow I will Continue Reading

Prevent user from losing unsaved data

Reading Time: 3 minutes There are many instances where a user fills some details in the form, edit their details, or secure the form in such a way that if someone navigates away or closes the browser tab, they should be prompted to confirm that they really want to leave the form with unsaved data. Whenever these kind instances occur you will see an alert appear on the top of Continue Reading

Tech triveni sponsors

Knoldus Joins Hands With Tech Triveni as Platinum Sponsor

Reading Time: 2 minutes We are pleased to announce that we have joined hands with Tech Triveni as a Platinum Sponsor. Knoldus is proud to be associated with the second edition of Asia’s premiere Functional, Reactive, and Big Data event. Tech Triveni 2.0 is scheduled to be held at India International Centre, New Delhi on 23rd-24th November 2019. This time, there’s a new addition to one of the most Continue Reading

Akka Dispatcher- All that you need to know

Reading Time: 4 minutes Pre-requisite knowledge: Basics of Akka and Actor System. Fun fact: Did you know that ActorSystem has a heart? Well yes, the ActorSystem is considered to have a heart and it is the “Dispatchers”. We will see how, in this blog. In the real world, dispatchers are the communication coordinators responsible for receiving and passing messages. For example, in emergency services like 911, the dispatchers are Continue Reading

Program Increment – Day 2

Reading Time: 6 minutes In my previous blog we saw how RTE sets the agenda for Program Increment session. It was more focused on setting up of business context by Leadership team. Sharing the Architecture vision by the System Architect, and Team getting into breakouts and preparing the Draft Plan followed by Management Review. Let us see how Day 2 looks like in the Program Increment Planning. At the Continue Reading

Understanding Spark’s Logical and Physical Plan in layman’s term

Reading Time: 5 minutes This blog pertains to Apache SPARK 2.x, where we will find out how Spark SQL works internally in layman’s terms and try to understand what is Logical and Physical Plan. Also we will be looking into Catalyst Optimizer. So let’s get started. First let’s see what Apache Spark is. The official definition of Apache Spark says that “Apache Spark™ is a unified analytics engine for large-scale Continue Reading

Integration Testing with H2

Reading Time: 3 minutes It goes without saying that testing code is essential, if you don’t want to have buggy code in production, but how can you test code that queries a database? One solution is an in-memory database, and a common in-memory database is H2. Here is some code that queries a database. More specifically the method getNumDistinctInColumn returns the number of distinct values in a specified column Continue Reading

Program Increment – Day 1

Reading Time: 4 minutes Effective execution of Program Increment is very essential to reap true benefits. In my previous blog, we have seen what Program Increment is all about and what are the main factors to be considered while planning a Program Increment. Let us see how effectively we can use 2 days.  In this blog we will see how do we execute Program Increment Day 1 in detail Continue Reading

A Beginner’s Guide to Writing Acceptance Testing for Lagom Microservices with Cucumber

Reading Time: 3 minutes In software development, acceptance criteria is a way via which a client communicates their expectations to engineering team. Also, it acts as a list of conditions upon completion of which a software/app is marked as complete. Since acceptance criteria is an important part of software development, it becomes important to determine that the acceptance criteria is met by the software or not. This sub-discipline of Continue Reading

Program Increment and It’s Planning

Reading Time: 4 minutes SAFe is no Magic except for Program Increment Planning. No event is as powerful in SAFe as Program Increment Planning. PI planning sets the platform for cadence for ART. In this blog we will see how to prepare for an effective Program Increment Planning session. Next Blog we will cover Day wise activities during the PI session. With large audience of 100 + people working Continue Reading

Apache Spark

Deep Dive into Apache Spark Transformations and Action

Reading Time: 4 minutes In our previous blog of Apache Spark, we discussed a little about what Transformations & Actions are? Now we will get deeper into the topic and will understand what actually they are & how they play a vital role to work with Apache Spark? What is Spark RDD? Spark introduces the concept of an RDD (Resilient Distributed Dataset), an immutable fault-tolerant, distributed collection of objects Continue Reading

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