What is the purpose of DataNode block scanner?
Are Namenode and job tracker on the same host?
What is small file problem in hadoop?
Explain the wordcount implementation via hadoop framework ?
How many JVMs run on a slave node?
Explain the basic difference between traditional rdbms and hadoop?
What is the meaning of speculative execution in Hadoop? Why is it important?
What are the core components of Apache Hadoop?
What are the Basics of Hadoop?
what are the steps involved in decommissioning removing
On what basis name node distribute blocks across the data nodes?
Define a daemon?
What is Your Cluster size ?