What is the difference between a MapReduce InputSplit and HDFS block?
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Write a short note on the disadvantages of mapreduce
How does fault tolerance work in mapreduce?
In Hadoop, which file controls reporting in Hadoop?
Explain what does the conf.setmapper class do?
What is a map side join?
Mention what is the hadoop mapreduce apis contract for a key and value class?
how can you check whether Namenode is working beside using the jps command?
what is storage and compute nodes?
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
What are the data components used by Hadoop?
What happens when a DataNode fails during the write process?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
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