What is the difference between a Hadoop and Relational Database and Nosql?
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what should be the ideal replication factor in hadoop?
Mention what is the number of default partitioner in Hadoop?
Is hadoop a database?
How many instances of tasktracker run on a hadoop cluster?
What is a Combiner?
Define a datanode?
Explain what is the purpose of RecordReader in Hadoop?
How to configure hadoop to reuse JVM for mappers?
What is Hadoop streaming?
What is a Task instance in Hadoop? Where does it run?1
What is nlineoutputformat?
Which one is default InputFormat in Hadoop ?
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