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Knoldus-Devops-Blog

Making DevOps a reality is easier said than done!

Business Insights, Scala

Reading Time: 3 minutes These days, digital transformation is grabbing a lot of attention that trumpet how it’s radically changing customer behaviours. This typically means that IT departments have to deliver new features faster even in the face of more demanding requirements for availability (24/7) and security. DevOps is one such important facet of digital transformation and promises to do exactly, by fostering a high degree of collaboration across the Continue Reading

Recording of Jmeter Script Part -1

LoadTesting, Scala, Testing,

Reading Time: 3 minutes Nowadays our life in this innovative era is driven by web application. With such a growing significance of web applications,there is also a requirement to conduct performance testing. So in this blog we will learn to create/record  the script for load testing. Here we will record the script in two different ways. Using Blazemeter Extension. Using Jmeter Proxy. Now to record the script using jmeter Continue Reading

React Hooks: Introduction – Part 1

Functional Programming, JavaScript, React, ReactJS, User Interface (UI),

Reading Time: 3 minutes React hooks were introduced at React Conf October 2018 to introduce state management and side-effects in functional components. They have become a game-changer for a lot of developers. These hooks change the fundamental mindset because of switching from class-based components to functional components with hooks. In this blog post, we will get an overview of these hooks, with the look of how the same logic Continue Reading

Adding Test Case To Cucumber Files

Scala

Reading Time: 3 minutes In continuation with my previous blog, complete eclipse setup for cucumber, this blog will help us in adding Test Case To Cucumber files and thus, creating a sample project. In first place, we have covered step 1 to step 4. Likewise,we will go ahead from step 5 to step 7 Adding Test case To Cucumber Feature File Step 5 :Firstly, Adding data to your first Continue Reading

HTML, CSS, and JS as a Framework

CSS, HTML, JavaScript, User Interface (UI), Web Designing, ,

Reading Time: 7 minutes For beginners, the thought of designing a website from scratch can seem like a really difficult task. Let’s ease it a little bit in this blog. The online market is expanding at a good rate and for most of us, websites form part of our daily life. HTML, CSS, and JS are special web languages that work together as a framework to form the front-end Continue Reading

Try with resource enhancements in Java 9

Functional Programming, Java, ,

Reading Time: 2 minutes We all have done I/O operations in our code which used to be very troublesome when it comes to always keep in mind closing the resources once the usage has been made. But, when in Java 7, Try-With-Resource was introduced, this limitation was taken care of. Now a user needs not to worry about the open resources. To understand what enhancements have been done in Continue Reading

Achieving Concurrency with Akka Actors

Scala, , ,

Reading Time: 3 minutes Java comes with a built-in multi-threading model based on shared data and locks. To use this model, you decide what data will be shared by multiple threads and mark as “synchronized” sections of the code that access the shared data. It also provides a locking mechanism to ensure that only one thread can access the shared data at a time. Lock operations remove possibilities for Continue Reading

Data Visualisation In KNIME

ML, AI and Data Engineering, ,

Reading Time: 3 minutes KNIME is definitely a dream for data scientists. It makes the work of an Data Scientist much easier. If you haven’t heard about KNIME, you can find all about it in our blog Knime Analytics Platform: A dream for a data scientist Continuing on, in this blog we will now see how to create visualizations in KNIME and how easy it is to create visualizations. Continue Reading

integrating Cucumber with Akka-Http

Akka Cluster in use (Part 4): Managing a Cluster

Akka, akka-http,

Reading Time: 3 minutes Hello friends, I hope you all are safe in the COVID-19 pandemic and learning new tools and tech while staying at home. In our last blog post on Akka Cluster, we saw an Akka Cluster in action and learnt about how the node(s) react to new nodes in the Cluster. Now when we know how to create & setup an Akka Cluster, let’s learn, how to Continue Reading

fetching data from different sources using Spark 2.1

Spark: createDataFrame() vs toDF()

Apache Spark, Big Data and Fast Data, Scala, Spark, , , , , ,

Reading Time: 2 minutes There are two different ways to create a Dataframe in Spark. First, using toDF() and second is using createDataFrame(). In this blog we will see how we can create Dataframe using these two methods and what’s the exact difference between them. toDF() toDF() method provides a very concise way to create a Dataframe. This method can be applied to a sequence of objects. To access Continue Reading

Message Driven Architecture

Reactive Architecture, Scala

Reading Time: 2 minutes Here we will discuss the different types of messaging patterns used in Reactive Architecture. Evolution of Communication Since the real world is a perfect example of the natural distributed system, we can learn from it and apply its principles to build Reactive Systems. In the real world face to face conversation is synchronous communication. Over time letters have been introduced in the real world and Continue Reading

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