What does the command mapred.job.tracker do?
On what basis name node distribute blocks across the data nodes?
How would you tackle counting words in several text documents?
What does /etc /init.d do?
How to change Replication Factor For below cases ?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
What is the difference between hadoop and other data processing tools?
What is Hadoop streaming?
Can NameNode and DataNode be a commodity hardware?
shouldn't DFS be able to handle large volumes of data already?
What is Apache Hadoop YARN?
Why is hadoop faster?
What is the problem with small files in Apache Hadoop?