Define fault tolerance?
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How a task is scheduled by a jobtracker?
What do the master class and the output class do?
What is a “Distributed Cache” in Apache Hadoop?
How is the distance between two nodes defined in Hadoop?
What is a Combiner?
How to enable recycle bin in hadoop?
What is the port number for NameNode
What is the problem with small files in Apache Hadoop?
What is keyvaluetextinputformat?
How will format the HDFS ?
Explain how is hadoop different from other data processing tools?
What is the problem with HDFS and streaming data like logs
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