Explain about the basic parameters of mapper and reducer function
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what are the main configuration parameters that user need to specify to run Mapreduce Job ?
What is a TaskInstance?
How much space will the split occupy in Mapreduce?
What is the difference between a MapReduce InputSplit and HDFS block?
In Map Reduce why map write output to Local Disk instead of HDFS?
How does Hadoop Classpath plays a vital role in stopping or starting in Hadoop daemons?
List the configuration parameters that have to be specified when running a MapReduce job.
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
How to specify more than one directory as input in the Hadoop MapReduce Program?
Why MapReduce uses the key-value pair to process the data?
Where sorting is done on mapper node or reducer node in MapReduce?
Map reduce jobs take too long. What can be done to improve the performance of the cluster?
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