What is Hadoop Custom partitioner ?
Explain the master class and the output class do?
Name the examples of some companies that are using hadoop structure?
Rack awareness of Namenode?
How many instances of tasktracker run on a hadoop cluster?
Is fs.mapr.working.dir a single directory?
What is a speculative execution in Apache Hadoop MapReduce?
What are different types of filesystem?
Can the balancer be run while Hadoop is in use?
what is the default replication factor in HDFS?
What are the stable versions of Hadoop?
What is HDFS ? How it is different from traditional file systems?
What are the most commonly defined input formats in Hadoop?