Why we use intwritable instead of int? Why we use longwritable instead of long?
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What is streaming access?
What is Slot in Hadoop v1? Why was it removed from Hadoop v2?
What does name-node mean in hadoop?
What are the parameters of mappers and reducers?
What is Chain Mapper?
What is the key difference between NameNode and DataNode in Hadoop?
Name the most common Input Formats defined in Hadoop? Which one is default?
What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?
What is Disk Balancer in Hadoop?
What are configuration files in Hadoop?
Why aggregation cannot be done in Mapper?
What is fsck?
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