What is Chain Mapper?
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Clarify what a task tracker is in hadoop?
What is a Backup node in Hadoop?
What is the use of cloudera?
What is the difference between an inputsplit and a block?
Explain what is sequencefileinputformat?
What is the difference between TextinputFormat and KeyValueTextInputFormat class?
How can you set an arbitrary number of mappers to be created for a job in Hadoop?
Name the files which are used by the startup and shutdown commands?
What are the side data distribution techniques?
What are the Hadoop features extended to its eco-system components ?
Explain what is a task tracker in hadoop?
What does the high availability of a name-node means? How is it accomplished?
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