What is the function of ApplicationMaster?
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What is the meaning of speculative execution in Hadoop? Why is it important?
Define a datanode?
In which location Name Node stores its Metadata and why?
What does ‘jps’ command do?
What is HDFS block size and what did you chose in your project?
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?
How would you tackle counting words in several text documents?
Who is a 'user' in HDFS?
Can we call vms as pseudos?
How blocks are distributed among all data nodes for a particular chunk of data?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What do you know about nlineoutputformat?
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