How many InputSplits is made by a Hadoop Framework?
What is Mapper in Hadoop MapReduce?
What is an identity mapper and identity reducer?
What is the difference between Job and Task in MapReduce?
What do you know about nlineinputformat?
When Namenode is down what happens to job tracker?
What are the primary phases of a Reducer?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
How do Hadoop MapReduce works?
What is the job of blend () and repartition () in Map Reduce?
What is identity mapper and chain mapper?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
How to specify more than one directory as input to the MapReduce Job?