Who invented hadoop?
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Have you ever used Counters in Hadoop. Give us an example scenario?
In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?
Knox and Hadoop Development Tools?
What is the best hardware configuration to run Hadoop?
Explain the Job OutputFormat?
What are sink processors?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
Define a task tracker?
How the HDFS Blocks are replicated?
What do you know by storage and compute node?
What is the jobtracker and what it performs in a hadoop cluster?
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