Author: Manish Mishra

Concurrency using Scala: Problems vs Tools

Functional Programming, Scala, , , ,

Reading Time: 5 minutes When we think about modelling a certain concurrent problem in Scala, There are a lot of tools in terms of libraries and frameworks to choose over vs the type of concurrency Problem. As part of this blog, we will be talking about where these tools can be utilised at their best. On a broad level, we can classify the tools into categories. There are concurrency Continue Reading

Demystifying gRPC: A brief history of Remote execution.

Grpc, Microservices, Scala, , ,

Reading Time: 6 minutes It has been a year since I’ve been exploring the gRPC framework. Most of the time, I’ve written web services in gRPC and glued them together with their implementations. Most of the time without having to explore it why and how it came into the light?  I find people relating the gRPC framework to the “Microservices” world. If you dig on the Internet, you can Continue Reading

SQL on Apache Druid – Part II: Which SQL workload will be faster on Druid?

Scala

Reading Time: 3 minutes In the previous blog, we introduced What is Apache Druid and how we can run SQL query on Druid. In this post, we will talk about the Druid design in details and will discuss which kind of SQL workload will be best executed on Apache Druid. Is Druid really Designed to run SQL queries? Apache Druid provides columnar storage format in contrast to traditional RDBMS Continue Reading

Running SQL on Apache Druid – Part I: How to run queries

Scala

Reading Time: 4 minutes In this blog, we will be starting with Introduction to Apache Druid and will focus the discussion on the Druid SQL query model and will demonstrate various ways in which we can query Druid for SQL workloads. What is Druid? I would not mind quoting the Druid documentation for this purpose:  “Druid is a data store designed for high-performance slice-and-dice analytics (“OLAP“-style) on large data Continue Reading

Ethereum Networks

Introducing Infura: Connecting DApps with Ethereum Network without setting up Ethereum Nodes

Scala, , , ,

Reading Time: 3 minutes   If you’ve been working on Decentralized applications based on Ethereum, you might have come across setting up the Local Ethereum Node or your own private Ethereum node to test your application. In my case, Setting up Ethereum nodes and connecting dApps with it has been a problem for me for the following reasons: If I use any of the Ethereum clients (geth or parity) Continue Reading

Ethereum Networks

Ethereum Networks – Part II: Setting up Private Testnet on the local machine

Scala

Reading Time: 2 minutes In the previous blog: Understanding the different kinds of Ethereum Networks, we talked about what are the different kinds of Ethereum Networks and how to choose a specific network when starting the development with Ethereum. In this blog, we will provide you a cheat sheet of Linux commands which you can refer to quickly set up the private network on your machine without going through Continue Reading

Ethereum Networks

Understanding Different kinds of Ethereum Networks

Scala, , , ,

Reading Time: 3 minutes After gulping a lot about the “disrupting” things related to Blockchain technology, I was very intrigued to quickly set up a development environment with whatever is free and useful on the Internet for developing a kick-ass DApp (I am Joking, Just trying “Hello, World!” 😉  I came to learn that “Ethereum” is the most matured protocol around blockchain. Before I proceed further with tools available Continue Reading

Setting up cucumber and sbt in IntelliJ

Cucumber, Scala, Testing

Reading Time: 3 minutes If you want to look into a starter project where cucumber feature file can be run right from IntelliJ IDEA with sbt as a build tool, this blog is a perfect match.  I will put the below ingredients and complete recipe on how to write a feature file and plug it in with your implementation steps in IntelliJ IDEA. Ingredients: build.sbt First three lines may Continue Reading

Ansible

Ansible Playbooks vs Roles: Part I – The Playbook

DevOps, Scala

Reading Time: 3 minutes I assume you know with basics of Ansible and familiar with the terminologies of Ansible. If not, you can visit our previous starter blog.  In this blog, we will take a look on how we can quickly start writing Ansible playbooks with a simple example and in the later or next part of the blog, we will look at how they can be reused to Continue Reading

Blue Green Deployments: Reducing the downtime of apps

Scala

Reading Time: 2 minutes Ever heard of “application outage”? As part of agile practice we release our work frequently and often when a newer version of an application released to production, we get application outages due to issues like unexpected traffic, introduced a bug into the newer version or other unknown PITA issues. This cause some (actually a lot!) of chaos in terms of time efforts to recover from failures and Continue Reading

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