How to build a 7 node Raspberry Pi Hadoop Cluster #piday #raspberrypi @Raspberry_Pi
Nigel Pond’s guide on building a 7 node Raspberry Pi Hadoop cluster
Inspired by a desire to learn more about Hadoop and the fact I already owned a Raspberry Pi I wondered whether anyone had yet built a Hadoop cluster based on this hobby computers. I wasn’t surprised to discover that people have already done this and the following instructions are the where I started:
If, like me, you’re interested in building with the newer version of Hadoop then follow Carsten’s instructions but read through Jonas’s too because he provides useful links for downloading the Raspian (Linux Operating System built specifically for the Raspberry Pi) distribution as well as commands and example files for testing your cluster.
The first stage is to build a single node cluster where your one node performs all tasks such as NameNode, Secondary NameNode and DataNode. Once you have this up-and-running you’re reading to add a second node. This second node will be a dedicated DataNode from which you will clone all subsequent DataNodes.
Creating the second node is slightly more difficult which is why I decided to write this post in the hope that it will save others time and effort.
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!
Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: CircuitPython 2025 Wraps, Focus on Using Python, Open Source and More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!