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Answer Posted / gokulakrishnan r
YARN is not a replacement of Hadoop but it is a more powerful and efficient technology that supports MapReduce and is also referred to as Hadoop 2.0 or MapReduce 2
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Why Mapper runs in heavy weight process and not in a thread in MapReduce?
What is the next step after Mapper or MapTask?
Why is output file name in Hadoop MapReduce part-r-00000?
What is Data Locality in Hadoop?
How many InputSplits is made by a Hadoop Framework?
What is a TaskInstance?
In MapReduce Data Flow, when Combiner is called?
How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
Is it possible to search for files using wildcards?
What are combiners? When should I use a combiner in my MapReduce Job?
how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?
Where is Mapper output stored?
What is the InputSplit in map reduce ?
Why Hadoop MapReduce?
what is NameNode in Hadoop?
