For a job in Hadoop, is it possible to change the number of mappers to be created?
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How much space will the split occupy in Mapreduce?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
What is heartbeat in hdfs?
What is the data storage component used by Hadoop?
How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?
Explain about the partitioning, shuffle and sort phase
A number of combiners can be changed or not in MapReduce?
Explain what does the conf.setmapper class do?
How to set mappers and reducers for MapReduce jobs?
What is shuffling in mapreduce?
In Hadoop, which file controls reporting in Hadoop?
List the network requirements for using Hadoop ?
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