how to share the metastore within multiple users?
Which files are used by the startup and shutdown commands?
What is the problem with small files in Apache Hadoop?
What happens to a namenode, when job tracker is down?
Is secondary namenode a substitute to the namenode?
Explain a simple Map/Reduce problem.
What is HDFS Federation?
Main Components of Hadoop?
What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?
What are the benefits of block transfer?
Where do you specify the Mapper Implementation?
What is nlineoutputformat?
What is a checkpoint?