NoSql

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

Reactive Architecture

Reading Time: 2 minutes Recently I got an invitation to present a guest lecture for faculty of Engineering colleges in ABES college of Engineering. I came up with the most trending topic i.e Reactive Architecture. We talked about what is this buzzing keywords and why does it came into existence. Also What are the challenges one were facing and how are the real world problems being solved by using Continue Reading

Tale of Apache Spark

Reading Time: 6 minutes Data is being produced extensively in today’s world and it is going to be generated more rapidly in future. 90% of total data that is produced in the world is produced in last two years only and it is estimated that in 2020 world’s total data would reach 45 ZB and data generated each day would be enough that if we try to store it Continue Reading

Can we do joins in MongoDB?

Reading Time: 3 minutes MongoDB is a NoSQL document database designed for ease of development and scaling. The best part about using a relational DBMS is that we can perform a wide range of relational queries on it. Doing joins on different tables is very easy. But, when we talk about MongoDB, the way data is stored here is quite different from any relational DBMS. How data is Stored Continue Reading

First steps to build Spring Boot Application with Couchbase

Reading Time: 2 minutes As the name of the blog suggests, we will be taking the first steps to build a simple application from scratch using Couchbase as a database and spring -boot as a framework. Let’s get started. You can create a starter maven project using this link. Add Web, Lombok and Couchbase dependencies. The pom.xml should look like: Let’s run the spring boot application: How to download Continue Reading

Dockerizing a NodeJS app with Redis

Reading Time: 2 minutes Hi folks, in this blog I would walk you through how can we seamlessly dockerize a NodeJS app along with redis, So as we know that docker is a pretty decent way of streamlining and making the process of deployment easier, efficient and pluggable, so let’s gets started but before that, the prerequisite for the blog is a basic understanding of docker

Tuning consistency with Apache Cassandra

Reading Time: 4 minutes One of the challenges faced by distributed systems is how to keep the replicas consistent with each other. Maintaining consistency requires balancing availability and partitioning. Fortunately, Apache Cassandra lets us tune this balancing according to our needs. In this blog, we are going to see how we can tune consistency levels during reads and writes to achieve faster reads and writes. Before digging more about Continue Reading

DynamoDB Core Components

Amazon DynamoDB: Core Components

Reading Time: 4 minutes   DynamoDB is a part of Amazon Web Services. It is a NoSQL database, which supports key-value and document data structures. In this blog, we will be discussing Core components of DynamoDb. Features of DynamoDb: It is a fully managed NoSQL database. It can store & retrieve any amount of data, and can serve any amount of traffic. To maintain fast performance, it distributes data Continue Reading

Is Apache Cassandra really the Database you need?

Reading Time: 6 minutes Welcome back, everyone. It has been quite some time since I have been working with Cassandra. To be honest, it is a quite cool database. Its decentralized nature, as well as its ability to handle such a large volume of writes, is really commendable. But as we know nothing is perfect. So is the Cassandra Database. What I mean by this is that you cannot Continue Reading

The Rise Of Scanamo: Async Access For DynamoDB In Scala

Reading Time: 2 minutes Scanamo is a library to use DynamoDB with Scala in a simpler manner with less error-prone code. Now the question is  “Why should anyone use it?” The answer is very simple. As DynamoDB clients provided by AWS are not available in Scala DSL. So there are a number of libraries available for DynamoDB to write your queries in Scala. But what makes Scanamo different from other Continue Reading

Getting started with MongoDB

Reading Time: 3 minutes Hi everyone! in this blog, I will try to explain what is MongoDB and why to use MongoDB What is MongoDB? MongoDB is one of the powerful NoSql DataBase. It does not use the usual rows and columns that we are so much associated with the relational database management. It is an architecture that is built on collections and documents. This database uses a document Continue Reading

Amazon ES – Secure your cluster from anonymous users! #2

Reading Time: 5 minutes In the previous blog, we have learned how to create a domain on Amazon ES and also how to create an index using Curl on the cluster. Now, let’s just look how we can control access to Amazon ES Domain. One of the key benefits of using Amazon ES is that you can utilize AWS Identity and Access Management (IAM) to control access to your Continue Reading

Amazon ES – setting up the cluster! #1

Reading Time: 4 minutes Amazon Web Services (AWS) is a cloud services platform, providing compute power, database storage, content delivery, security options and other functionality to allow businesses to build sophisticated applications with increased flexibility, scalability and reliability. Amazon Elasticsearch is one of the services provided by AWS. Amazon ES Amazon Elasticsearch Service, also called Amazon ES, is a managed service that makes it easy to create a domain, Continue Reading

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