what is difference between int and intwritable?
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How many instances of a jobtracker run on hadoop cluster?
What is the difference between Apache Hadoop and RDBMS?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
What is a namenode? How many instances of namenode run on a hadoop cluster?
What is the default block size in hdfs?
What do the master class and the output class do?
Who invented hadoop?
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
What is HDFS Federation?
How can we change the split size if our commodity hardware has less storage space?
What does the command mapred.job.tracker do?
What are the additional benefits YARN brings in to Hadoop?