Optimising Hive Queries with Tez Query Engine Data Science by Sunny Srinidhi - June 13, 2022June 13, 20220 Hive provides us the option of executing SQL queries with a few different query engines. It ships with the native MapReduce engine. But we can switch that to Tez which has gained popularity since its launch, or we can also use Apache Spark as well. Read more... “Optimising Hive Queries with Tez Query Engine”
Cleaning and Normalizing Data Using AWS Glue DataBrew Data Science by Sunny Srinidhi - January 17, 2022January 17, 20221 A major part of any data pipeline is the cleaning of data. Depending on the project, cleaning data could mean a lot of things. But in most cases, it means normalizing data and bringing data into a format that is accepted within the project. Read more... “Cleaning and Normalizing Data Using AWS Glue DataBrew”
Understanding Apache Hive LLAP Data Science by Sunny Srinidhi - November 18, 2021November 18, 20210 Apache Hive is a complex system when you look at it, but once you go looking for more info, it’s more interesting than complex. There are multiple query engines available for Hive, and then there’s LLAP on top of the query engines to make real-time, interactive queries more workable. Read more... “Understanding Apache Hive LLAP”
Installing Hadoop on the new M1 Pro and M1 Max MacBook Pro Data Science by Sunny Srinidhi - November 5, 2021November 5, 20213 In the previous series of posts, I wrote about how to install the complete Hadoop stack on Windows 11 using WSL 2. And now that the new MacBook Pro laptops are available with the brand new M1 Pro and M1 Max SOCs, here’s a guide on how to install the same Hadoop stack on these laptops. Read more... “Installing Hadoop on the new M1 Pro and M1 Max MacBook Pro”
Installing Hadoop on Windows 11 with WSL2 Data Science by Sunny Srinidhi - November 1, 2021November 1, 20213 In the previous post, we saw how to install a Linux distro on Windows 11 using WSL2 and then how to install Zsh and on-my-zsh to make the terminal more customizable. In this post, we’ll see how we can install the complete Hadoop environment on the same Windows 11 machine using WSL. Read more... “Installing Hadoop on Windows 11 with WSL2”
Getting Started With Apache Airflow Data Science by Sunny Srinidhi - October 11, 2021October 11, 20210 Apache Airflow is another awesome tool that I discovered just recently. Just a couple of months after discovering it, I can’t imagine not using it now. It’s reliable, configurable, and dynamic. Because it’s all driven by code, you can version control it too. Read more... “Getting Started With Apache Airflow”
Fake (almost) everything with Faker Data Science by Sunny Srinidhi - September 30, 2021September 30, 20210 I was recently tasked with creating some random customer data, with names, phone numbers, addresses, and the usual other stuff. At first, I thought I’ll just generate random strings and numbers (some gibberish) and call it a day. But then I remembered my colleagues using a package for that. Read more... “Fake (almost) everything with Faker”
Querying Hive Tables From a Spring Boot App Data Science Tech by Sunny Srinidhi - June 30, 2021June 30, 20211 In this post, we’ll see how we can query tables that reside in Hive using a Spring Boot application. As always, I’m going to use a Spring Boot web app with a few GET APIs to show how we can query data from Hive. Read more... “Querying Hive Tables From a Spring Boot App”
out() vs. outE() – JanusGraph and Gremlin Data Science by Sunny Srinidhi - March 3, 2021March 3, 20210 If you are new to JanusGraph and the Gremlin query language, like I am, you would be confused about the out(), outE(), in(), and inE() methods. If you look at examples of these functions, you’ll not be able to comprehend the difference easily. Read more... “out() vs. outE() – JanusGraph and Gremlin”
Getting Started With JanusGraph Data Science by Sunny Srinidhi - February 25, 2021February 25, 20211 JanusGraph is a graph processing tool that can process graphs stored on clusters with multiple nodes. JanusGraph is designed for massive clusters and for real-time traversals and analytics queries. In this post, we’ll look at a few queries that you would want to run the very first time you install JanusGraph and start playing with the Gremlin console. Read more... “Getting Started With JanusGraph”