It is not a prerequisite. But you are looking at optimization of your Map Reduce jobs, Java provides that flexibility.
In my day job, I've just spent ...READ MORE
To start with Hadoop I would suggest ...READ MORE
ZooKeeper is a centralized service for maintaining ...READ MORE
Basically distributed cache allows you to cache ...READ MORE
Firstly you need to understand the concept ...READ MORE
You can create one directory in HDFS ...READ MORE
In your case there is no difference ...READ MORE
The distributed copy command, distcp, is a ...READ MORE
I would suggest you go through this ...READ MORE
The best possible framework for this task ...READ MORE
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