How can native libraries be included in yarn jobs?
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What is the characteristic of streaming API that makes it flexible run MapReduce jobs in languages like Perl, Ruby, Awk etc.?
Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?
What is streaming in Hadoop?
What is TaskTracker?
How jobtracker assign tasks to the tasktracker?
Mention what is data cleansing?
How can we create a hadoop cluster from scratch?
Mention what are the most common input formats defined in hadoop?
How can one check whether NameNode is working or not?
Explain the core methods of the reducer?
What is structured and unstructured data?
Why do we need Hadoop?
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