Mention Hadoop core components?
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List the configuration parameters that have to be specified when running a MapReduce job.
What is the default value of map and reduce max attempts?
what are the three modes in which Hadoop can be run?
what are the basic parameters of a Mapper?
For a Hadoop job, how will you write a custom partitioner?
Is Mapreduce Required For Impala? Will Impala Continue To Work As Expected If Mapreduce Is Stopped?
Mention when to use Map reduce mode?
Name job control options specified by mapreduce.
What main configuration parameters are specified in mapreduce?
What happens when a datanode fails ?
How to create custom key and custom value in MapReduce Job?
What is map/reduce job in hadoop?
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