What is the difference between hadoop and other data processing tools?
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What is the function of NodeManager?
How the HDFS Blocks are replicated?
What is partioner in hadoop? Where does it run,mapper or reducer?
Did you ever ran into a lop sided job that resulted in out of memory error
What is the difference between SQL and NoSQL?
What is salary of hadoop developer?
How the Client communicates with HDFS?
On what basis name node distribute blocks across the data nodes?
How do you define "block" in HDFS?
What are the benefits of block transfer?
Is a job split into maps?
What is DistributedCache and its purpose?
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