What are sink processors?
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How to resolve small file problem in hdfs?
Explain the master class and the output class do?
How to exit the vi editor?
Is secondary namenode a substitute to the namenode?
Explain a simple Map/Reduce problem.
What is 'Key value pair' in HDFS?
Which one is default InputFormat in Hadoop ?
How Mapper is instantiated in a running job?
What is a task instance in hadoop? Where does it run?
What is yarn in hadoop?
Give the use of the bootstrap panel.
How to configure hadoop to reuse JVM for mappers?
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