how Hadoop is different from other data processing tools?
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When is the reducers are started in a MapReduce job?
what daemons run on a master node and slave nodes?
Explain job scheduling through JobTracker
what is NameNode in Hadoop?
What is the core of the job in MapReduce framework?
Define Writable data types in Hadoop MapReduce?
What is an input reader in reference to mapreduce?
What are ‘reduces’?
Is Mapreduce Required For Impala? Will Impala Continue To Work As Expected If Mapreduce Is Stopped?
In mapreduce what is a scarce system resource? Explain?
How do you stop a running job gracefully?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
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