what are the basic parameters of a Mapper?
How to set the number of mappers for a MapReduce job?
What is the Job interface in MapReduce framework?
How do you stop a running job gracefully?
What are ‘reduces’?
How to create a custom key and custom value in MapReduce Job?
What is a MapReduce Combiner?
how JobTracker schedules a task ?
What platform and Java version is required to run Hadoop?
How to specify more than one directory as input to the MapReduce Job?
What are the main configuration parameters in a MapReduce program?
In MapReduce Data Flow, when Combiner is called?
Why Mapreduce output written in local disk?