ashwin

Ashwin Rangarajan is a certified Spark, Hadoop and AWS Developer. He leverages his technical, analytical and problem-solving skills to create Big Data solutions in Cloud. He received his Master’s degree in Computer Science from Johns Hopkins University. He likes to blog technical articles related to Cloud Computing and Big Data technologies.

Hive: How to clear the contents of Hive CLI

Command You’re most likely familiar with the clear command to clear the contents of Unix /Linux shells. You can use a slightly modified version of this command to clear the contents of the Hive CLI. Keyboard Shortcut Alternatively, the following keyboard shortcut can be used to clear the contents of the Hive CLI.

Hive: How to display column names in SELECT statement output

If you’re executing any SELECT statement on Hive cli, only the rows are displayed. The column names are not displayed by default. To show the column headers, print.header property needs to be set to true. This can be done with the following statement. By default, the output of SELECT statement will not have any column […]

Serverless Computing aka Function as a Service

Let’s say you’re a programmer. You write a program which includes a piece of code in a programming language such as Python or Java. Where do you run that program? You’d run it on a computer. In fact, most likely, you’d run it on specialized computers called Servers that are designed to run 24/7 and they […]

Find the version of Apache Hive from Command Line Interface (CLI)

The version of Apache Hive can be retrieved from Command Line. You don’t have to navigate through the configuration files or browse through the User Interface. There are two commands that can be used from Command Line to obtain the version of Apache Hive. COMMAND #1 This command follows the popular convention used by other […]

What is Cloud Computing?

We hear the term “Cloud Computing” a lot in the media, advertisements, news and in memes. Cloud Computing has continuously been a trending term throughout the last decade. But what does cloud computing mean? Cloud computing is the offering of computing as a service. Consumers can pay the cloud computing service for on-demand use of […]

Amazon EMR and Google Cloud Dataproc: Top 10 Common Features

Amazon Web Services and Google Cloud Platform are the two of the three market leaders in cloud computing. They both offer similar kind of cloud-native big data platforms to filter, transform, aggregate and process data at scale. Amazon EMR and Google Cloud Dataproc are Amazon Web Service’s and Google Cloud Platform’s managed big data platforms […]

My Path To AWS Certified Big Data Specialty

Amazon Web Services certifications are few of the most reputed in the field of Software Engineering. I successfully completed the AWS Big Data Speciality certification on Nov 25, 2019. This certification tests the candidate on two of the most wanted skills right now – Cloud and Big Data technologies. Prior to taking this certification, I […]

Deep Learning Specialization – Neural Networks and Deep Learning

Deep Learning is one of the most sought after skills in tech right now. On November 14, 2019, I completed the Neural Networks and Deep Learning course offered by deeplearning.ai on coursera.org. Besides Cloud Computing and Big Data technologies, I have huge interests in Machine Learning and Deep Learning. I did my Masters in Computer […]

Amazon QuickSight – Visual Types Demystified

Amazon QuickSight is a managed business analytics service that’s part of the Amazon Web Services suite. Amazon QuickSight offers capabilities to create dashboards with visualizations and perform ad hoc analysis to obtain insights from the data. Amazon QuickSight works with several AWS data sources such as RDS, Aurora and Redshift, and also other data sources […]

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