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Hadoop 1.x or Hadoop 2?

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Hi fellows,

I'm starting to learn Hadoop and I want to make a repository with MapReduce programs to train myself but I have a big doubt.

All the theory for the certification CCDH (which I want to pass in 2-3 months) it's for Hadoop 1.x and there is some information about Hadoop 2 (YARN) like in the last edition of Hadoop: The definitive guide. So my question is:

Should I install Hadoop 1.x and learn the basics to pass the exam or should I go for Hadoop 2 to learn the newest implementation? Can I install both in the same computer (ubuntu 14.10)?

Thanks and regards!

Ranch Hand
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If you are a beginner the most it would matter to you is get the feel of what hadoop is. Later you can appreciate the difference between 1 or 2.

I would suggest read/learn for 1 and then upgrade to what 2 is?

What I have learnt is that installation is a hard thing

If you have a good machine and good internet connection, start off with downloading Cloudera(VM) or Hortonworks(sandbox) and get going from there.

If you can afford, then for learning I am finding this course as useful

Don't get me started about those stupid light bulbs.
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