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MapReduce Interview Questions
Un-Answered Questions { MapReduce }
Explain the process of spilling in MapReduce?
When Namenode is down what happens to job tracker?
What is a Speculative Execution in Hadoop MapReduce?
Is it possible to search for files using wildcards?
What is a combiner and where you should use it?
Define Writable data types in Hadoop MapReduce?
Explain the process of spilling in Hadoop MapReduce?
In Hadoop what is InputSplit?
how JobTracker schedules a task ?
What are the four basic parameters of a reducer?
How to specify more than one directory as input to the MapReduce Job?
In MapReduce, ideally how many mappers should be configured on a slave?
Where is the output of Mapper written in Hadoop?
What are advantages of Spark over MapReduce?
What is a RecordReader in Hadoop MapReduce?
