How many instances of JobTracker can run on a Hadoop Cluser?
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Explain why do we need hadoop?
How do you define "block" in HDFS?
How to enable/configure the compression of map output data in hadoop?
What are the characteristics of hadoop framework?
What are the default configuration files that are used in hadoop?
How to enable trash/recycle bin in hadoop?
How does an hadoop application look like or their basic components?
How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?
What do slaves consist of?
Which command is used for the retrieval of the status of daemons running the hadoop cluster?
Explain a simple Map/Reduce problem.
On what basis Namenode will decide which datanode to write on?