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

[caryleedavisvideo]

Awesome Sameer. I'm a SQL BI Developer just starting to investigate Big Data. You have such a nice ability to make the complex seem simple. It's a real gift for any teacher. I appreciate it.

[TheJazzmaster]

I agree this is certainly the best and professionally clean and detailed tutorial I have listened to. Thank you for simplicity and friendly knowledge sharing :)

[RobBates]

Excellent presentation, both content, pace, & delivery.  Thanks!

[nevmoveik]

This is literally the best presentation ive ever seen regarless the subject of Computer Science. Thank you very much. Extremely helpful for my Big Data Uni exam

[NareshKumar-cnbf]

I must appreciate the clarity of the presentation. Thanks a lot Sameer

[AJAYGovindaram]

I really like the way you presented the information. It's easy to understand and analyse the contents  you were talking about. I appreciate and thank you for the information.

[michelletalluto]

Sameer Great job on delivery of content and knowledge!  One tip.  when presenting stay to left or the right of the screen. Too much movement across the screen makes it difficult to follow what you 're saying as one may end up focusing on your constant moving back and forth.

[WilliamGates]

Thanks, the level of detail and clarity in this video was really good. Appreciate it!

[BigKens]

Great intro to Hadoop. This talk was specific enough to be informative and useful without information overload. The Yahoo example was a very interesting real-world example, also. Thanks very much! 

[JohnHeitmuller]

Excellent, concise, overview of the HDFS component of Hadoop.

[tinaareddy]

Totally awesome! I know everybody down there, have already said that, but I had to tell too! Super useful!! Thanks

[olulakun]

New to Hadoop and watched this video the first time and completely understood the whole process and architecture behind it - great video, please let us know when you are going to do more of these.

[jsidhu]

Really great video...specially because they charge £ 1200-2500 for this introduction and u did it for FREE!!!! Thank you !

[maddalam]

Thankyou Sameer, for this lucid yet insightful presentation. Just the right detail for any stater. Great job:)

[SuperDilsan]

Crystal clear explanation about HDFS and about High Availability. Thank you so much for the presentation.

[Harshavardhan-hvdo]

Simple and easy way to understand for new learners.
Thank you..

[Sengup]

Excellent Sameer. Greatly presented and wonderfully explained the concepts.

[kumarforsongs]

Excellent presentation Sameer. Very precise and up to the point.

[forexforex]

Very clear and helpful, will check out more of your presentations. Thanks Sameer.

[fiddlefan]

What a great presentation! Learned so much and for someone not in IT, you made it extremely understandable!