What is a DataNode? How many instances of DataNode run on a Hadoop Cluster?
What other technologies have you used in hadoop domain?
How will you make changes to the default configuration files?
unable to read options file while i tried to import data from mysql to hdfs through options-file command it through an error
What problems have you faced when you are working on Hadoop code?
What is the difference between a Hadoop database and Relational Database?
What is a Task instance in Hadoop? Where does it run?
Which object can be used to get the progress of a particular job ?
What are the default configuration files that are used in Hadoop?
Does MapReduce programming model provide a way for reducers to communicate with each other? In a MapReduce job can a reducer communicate with another
What is HDFS Block size? How is it different from traditional file system block size?
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