Skip to main content

Hadoop Tutorial: Intro to HDFS

In this presentation, Sameer Farooqui is going to introduce the Hadoop Distributed File System, an Apache open source distributed file system designed to run on commodity hardware.

He'll cover:

- Origins of HDFS and Google File System / GFS
- How a file breaks up into blocks before being distributed to a cluster
- NameNode and DataNode basics
- technical architecture of HDFS
- sample HDFS commands
- Rack Awareness
- Synchrounous write pipeline
- How a client reads a file

Comments

Popular posts from this blog

What is Multi-tenancy: Current Options in Hibernate

What is Multi-tenancy: Current Options in Hibernate Multi-tenancy is an architecture for data partitioning with the intention of allowing a single running instance of an application to simultaneously host data for multiple organziations. Even though the technique itself has been around since the 1960s, multi-tenancy has become prominent in recent years within SaaS/PaaS solutions as hosting services transition from traditional ASP and SOA models to cloud computing models. This session will discuss how to use Hibernate in various multi-tenancy designs.

Node.js Tutorial with Ryan Dahl, creator of Node.js

You've learned how to write code, but how do you actually launch your website or app? LearnStreet courses and tutorials have you covered. In this presentation Ryan Dahl, the man behind Node.js will introduce you to this event-driven I/O framework with a few examples showing Node.js in action. Ryan will also talk about the recent release of v0.4.0 and how to use some of the new APIs. Node.js is a system for building network services for Google's V8 JavaScript engine. Node.js is one of the hottest JavaScript frameworks today. While JQuery is used in the browser, Node is a powerful framework that can be used on the server. It is useful for designing scalable web servers and lets the server and the browser communicate with each other in real time. We use Node.js at LearnStreet to support our interactive course console. LearnStreet is an early-stage startup focused on changing the way people of all backgrounds and skill levels learn how to code. A small, passionate team of product