What is a task instance in hadoop? Where does it run?
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What is the difference between HDFS and NAS ?
What is Writable & WritableComparable interface?
How to configure hadoop to reuse JVM for mappers?
what is difference between int and intwritable?
What is the functionality of jobtracker in hadoop?
What are different hdfs dfs shell commands to perform copy operation?
Explain why the name ‘hadoop’?
Give the use of the bootstrap panel.
Explain use cases where SequenceFile class can be a good fit?
What is the meaning of the term "non-DFS used" in Hadoop web-console?
What is rack-aware replica placement policy?
What is the jobtracker and what it performs in a hadoop cluster?
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