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What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What is a 'block' in HDFS?
how would you modify that solution to only count the number of unique words in all the documents?
What is Disk Balancer in Apache Hadoop?
Is map like a pointer?
Who invented hadoop?
What are the default configuration files that are used in hadoop?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
What are the basic available commands in Hadoop sqoop ?
what should be the ideal replication factor in hadoop?
What is the purpose of RawComparator interface?
Why is Apache Spark faster than Apache Hadoop?
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