How Mapper is instantiated in a running job?
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Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What if rack 2 and datanode fails?
What do you know about sequencefileinputformat?
How to enable recycle bin in hadoop?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?
What is the jobtracker?
What are the additional benefits YARN brings in to Hadoop?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
what is meaning Replication factor?
What is compute and Storage nodes?
What is HDFS block size and what did you chose in your project?
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