What is Writable & WritableComparable interface?
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What is yarn in hadoop?
What is the purpose of button groups?
Explain how is hadoop different from other data processing tools?
What is the relation between job and task in hadoop?
Explain how input and output data format of the hadoop framework?
Explain the overview of hadoop history breifly?
What is a block and block scanner in HDFS?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
How hdfa differs with nfs?
What is the meaning of speculative execution in Hadoop? Why is it important?
Does google use hadoop?
How can we look for the namenode in the browser?
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