Database

Delete operation in Dgraph using GRPC

Deletion in dgraph is an easy operation we just have to keep few things in mind before deleting anything in dgraph. Before I explain how can we delete I am going to explain the different scenario. For example, Delete the edge Delete the node. Delete the one value in a list We will take a scenario where we have a person who has the following Continue Reading

Let’s start exploring DGraph – Mutations using JSON

This blog will be aimed towards making the readers aware of how to mutate data in DGraph using the most common data format, JSON. Before diving into the blog, you guys must have basic knowledge and understanding of DGraph – what it is and how to get started with it. I have already written a blog on that as well, which you will be able Continue Reading

Custom MySQL Docker Instance

Hi folks, I am back with another blog, have you ever been in a situation where you required to set up or mimic the current MySQL instance of any environment. Well recently I have been in such a situation and my use case was to test the overall services so I decided to use minikube for service deployment as a whole, now when I had Continue Reading

First steps to build Spring Boot Application with Couchbase

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

Let’s create your first Grafana dashboard

In my previous blog, we discussed the setup of Grafana-Graphite for JMX monitoring.  Now we will create a first Grafana dashboard where we will create Grafana queries to visualize JMX metrics stored in Graphite. As we know, Grafana UI runs on http://localhost:3000/ by default so let’s open the URL in the browser with the default username and password which is admin: admin After login either Continue Reading

Dockerizing a NodeJS app with Redis

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

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

Commit Log: A commitment that Cassandra provides.

Welcome back, everyone. I have been working on Cassandra for quite some time now but never actually got to explore its working in depth. We know that its decentralized nature, as well as its ability to handle such a large volume of writes, makes it really commendable. But how does it manage to be efficient? How is it able to achieve what it is so Continue Reading

Lagom Persistence API with Couchbase

In this blog, I will talk about using Couchbase with Lagom’s Persistent Entity API. And then we will see how we can query for fetching the data. We already know that Lagom handles data persistence with ‘Persistent Entity’ which holds the state of individual entities. And to interact with them one must know the identifier of the entity. So Lagom provides the support to build Continue Reading

Firebase: RealtimeDB & Firestore

Recently, while searching for persistence solutions for one of our projects, we started considering the hosted and managed offerings on the Firebase Platform. Firebase has two primary database offerings, the original Realtime Database (RtDB) and the newer Cloud Firestore (CFS) which is currently in beta. In this post, we’ll briefly list down some of the current similarities and differences that we encountered while tinkering with Continue Reading

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