Knoldus Blogs

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

February 4, 2017February 5, 2017Amazon, Amazon EC2, AWS, AWS Services, Cloud, Scala Days, Studio-DevOps, Studio-Scala

Reading Time: 3 minutes 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 a Linux instance (m4.large) which comes with Cent OS as the default operating system. Steps of creating an instance are clearly mentioned in official amazon docs, Continue Reading

DC/OS: The Architecture #2

April 19, 2018Studio-DevOpsArchitecture, DC/OS

Reading Time: 5 minutes In my previous post, we have gone through the type of nodes, tasks and the distributed process management. Now we’re going under the hood to explore the components which make DC/OS what it is. You’ll find the basic working of each component here. Let me show you around… Introduction First, let’s check out the map we’re going to follow in order to get where we Continue Reading

Knolx – Intoduction to AWS IAM

March 22, 2017June 13, 2018Amazon, AWS, Cloud, Security, Security Controls, Studio-Scala

Reading Time: < 1 minute Hi all, Knoldus has organized a 30 min session on 3rd March 2017 at 4:50 PM. The topic was Introduction to AWS IAM. Many people have joined and enjoyed the session. I am going to share the slides here. Please let me know if you have any question related to linked slides.

Getting Started with Apache Solr

April 12, 2017August 16, 2018Studio-Scala

Reading Time: 2 minutes Apache Solr is an open source search server. It includes the full-text search engine called Apache Lucene. So basically Solr is an HTTP wrapper around an inverted Index provided by Lucene. The purpose of Inverted Index is to allow the fast full-text search, at a cost of increased processing when a document is added to the database. The inverted file may be the database file Continue Reading

Cassandra Internals: Writing Process

August 6, 2017August 16, 2018Cassandra, Studio-Scalaapache cassandra, Cassandra, cassandra internals, cassandra vs relational database, Database, feature of cassandra, write in cassandra

Reading Time: 3 minutes What is Apache Cassandra? Apache Cassandra is a massively scalable open source non-relational database that offers continuous availability, linear scale performance, operational simplicity and easy data distribution across multiple data centres and cloud availability zones. It was originally developed at Facebook The main reason that Cassandra was developed is to solve Inbox-search problem. To read more about Cassandra you can refer to this blog. Why Continue Reading

Starting with Blockchain Chaincode using Golang

June 20, 2017August 13, 2018Studio-ScalaBlockchain, chaincode, contract, fabric, Golang, hyperledger, smart

Reading Time: 2 minutes Chaincode, or a smart contract is a fragment of code written in supported languages like Java or Go that is deployed onto a network of HyperLedger Fabric peer nodes. In this blog, we will learn how to develop Chaincode using Golang for a blockchain network based on Hyperledger Fabric v0.6. Chaincodes run network transactions which are validated and then appended to the shared ledger. In simple Continue Reading

Getting started with “APIGEE-EDGE”

November 6, 2017Microservices

Reading Time: 5 minutes Hi readers, in this blog I am going to discuss how to start using “Apigee-Edge”. What is Apigee-Edge? Apigee-Edge is an API management platform which can be hosted on the Cloud or on the premises of a company and that enables companies to secure, scale, manage, and analyze their digital business, and grow API programs to meet the increase in demand. Why Apigee-Edge? Any application can Continue Reading

Getting Started with Ansible

October 21, 2017September 12, 2018Studio-DevOpsAnsible, Configuration, Devops, Management

Reading Time: 4 minutes What is Configuration Management? Before starting with Ansible let’s discuss what configuration management is. Configuration Management (CM) is the process of handling changes in any system systematically, and it maintains the consistency of the product. It retains its consistency because it is applied over the entire lifecycle of the system. Configuration Management provides the capability of controlling and monitoring the performance of the system. Using Continue Reading

The combat in Knoldus

August 9, 2017August 11, 2017Studio-Scala

Reading Time: 3 minutes Virtue is a state of war, and to live in it we have always to combat with ourselves. – Jean-Jacques Rousseau Knoldus held a Hackathon like competition within the organization on 11th June 2017. It was simply named “code-combat”. Knoldus is an organization which always encourages every individual to push his or her boundary and get the excellence out of him that could be achieved Continue Reading

Exploring CrockroachDB with Java using JDBC

June 12, 2017August 9, 2018Studio-Scala

Reading Time: 4 minutes In this blog, We will be exploring CrockroachDB along with Java. We will also take up a few more things like How to install CrockroachDB How to start a Local cluster How to connect CrockroachDB with Java Alright, Before we jump into installation of CrockroachDB, Let’s find out What is CrockraochDB? CrockroachDB – CockroachDB is a cloud-native SQL database for building global, scalable cloud services that Continue Reading

Getting an insight of Blockchain

August 16, 2017September 12, 2018Studio-ScalaAlgorithms, bitcoin, Blockchain, Computing Paradigm

Reading Time: 4 minutes Hi all, In today’s blog, I will be getting you acquainted with the Blockchain, its definition, inception and everything you need to know as a novice developer or user. A many of us have lately been getting very familiar with the term Bitcoin and have started to visualise it correctly as a digital currency. So getting into a bit more detail, the technology behind it Continue Reading

Forget It! Going Digital & You haven’t heard Reactive?

July 7, 2017July 9, 2017Reactive Application, Studio-ScalaArchitecture, digital transformation, digitize

Reading Time: 4 minutes Today, you talk to any CIO, attend any CDO conference and it would have a track about going Digital. Digital transformation is a sought out area to invest … err … throw money. Without knowing how digital is going to help you and what is the technology stack that can allow you to go truly digital, I do not recommend any CIO/CDO to get into the ring.

What makes CockroachDB Unique !!

June 13, 2017September 11, 2018Studio-ScalaCockroachDB, CockroachDB vs. others, comparing cockroachdb, Comparison

Reading Time: 3 minutes In my blog today, I will be comparing CockroachDB with the existing databases like MySQL, Oracle, Cassandra, HBase and so on.. Let’s have a look at what makes CockroachDB different from other databases. Referring the following table we can compare different databases against each other depending on their features. As we can see, most of the features are present in CockroachDB, but the main concern Continue Reading