Author Archives: SAHIL SAWHNEY

Monitoring Akka based applications with Cinnamon and DataDog


Application monitoring is an important part of software development life cycle and aims to check if the application is performing as expected or not. With applications becoming Reactive, having distributed architecture and industry moving towards Fastdata, there is a great … Continue reading

Posted in Akka, sbt, Scala | Tagged , , , , , | 2 Comments

PostgreSQL Cheat Sheet : Basics


In this blog I have listed some of the basic commands like installing PostgreSQL, creating user and databases for PostgreSQL etc. CRUD with PostgreSQL is not the focus of this post. All the commands are tested in Ubuntu 14.04 LTS and … Continue reading

Posted in Scala | 8 Comments

Scalafmt – Styling The Beast


“I have never seen elegance go out of style” – SONYA TECLAI Scala (The Beast) has imported efficiency and elegance to the programming world by combining coziness of object oriented programming with the magic of functional programming. This blog illuminates … Continue reading

Posted in Scala | 4 Comments

Installing and running Kafka on AWS instance (CentOS)


In this blog we will install and start a single-node, latest and recommended version of kafka ie 0.10.2.0 with the binary for Scala 2.12 on the EC2 Linux instance with centOS as its operating system. We would be using the … Continue reading

Posted in Scala | 3 Comments

Deploying a 2 node Elasticsearch cluster on ec2 instance.


In this blog we will focus on two major things : 1). Steps required to create a two node elasticsearch (v5.2 released on 31.Jan.2017) cluster on Linux instances (with CentOs as the default OS). 2). Attaching additional volume to the … Continue reading

Posted in AWS, Elasticsearch, Scala | 3 Comments

Introduction To Quasiqoutes


Hi all, Knoldus had organized an hours session on 16th December 2016 at 4:00 PM. Topic was Introduction to Quasiqoutes. Many enthusiasts  joined and learned from the session. I am  sharing the slides of the session here. Please let me know if … Continue reading

Posted in Scala | Leave a comment

Hotfix To Install Latest Oracle JDK On Linux EC2 Instance (CentOS)


In this blog we will explore the procedure to install latest java 8 version ie JDK 8u121 (released on 17th January, 2017) on the EC2 Linux instance which comes with centOS as its default operating system. Following steps must be … Continue reading

Posted in Scala | 2 Comments

Mounting EBS(Elastic Block Store) volume to EC2(Elastic Compute Cloud) instance.


In this blog we will consider simple steps by which we can attach and mount a volume(elastic block store) to an ec2 instance. Following steps must be followed : Step 1 -> Creating an ec2 instance We will be creating … Continue reading

Posted in Amazon, Amazon EC2, AWS, AWS Services, Cloud, Devops, Scala, scaladays | 2 Comments

Mailchimp and Mandrill- The ‘ Hominidae’ kingdom


Hi all, Knoldus had organized an hours session on 9th December 2016 at 4:00 PM. Topic was Mailchimp and Mandrill- The ‘ Hominidae’ kingdom in Scala . Many enthusiasts  joined and learned from the session. I am  sharing the slides of the session here. … Continue reading

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The async library in Scala


Hi all, Knoldus had organized an hours session on 18th May 2016 at 4:00 PM. Topic was The async library in Scala . Many people had joined and learned from the session. I am  sharing the slides of the session here. Please let me know if … Continue reading

Posted in Scala | Leave a comment