When Namenode is down what happens to job tracker?
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What do you understand by compute and storage nodes?
What are the key differences between Pig vs MapReduce?
Define Writable data types in MapReduce?
Explain what is distributed cache in mapreduce framework?
Explain the process of spilling in MapReduce?
Why Hadoop MapReduce?
Explain the general mapreduce algorithm
What is identity mapper and chain mapper?
What is the need of MapReduce in Hadoop?
Where sorting is done in Hadoop MapReduce Job?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
What is map/reduce job in hadoop?