Explain the Single point of Failure in Hadoop?
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Mention what is rack awareness?
What is the non dfs used?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
How can you native libraries be included in yarn jobs?
Clarify what jobtracker is in hadoop? What are the activities followed by hadoop?
Name the most common input formats defined in hadoop?
How can we create a hadoop cluster from scratch?
Is it possible to provide multiple input to Hadoop? If yes then how?
How many datanodes can run on a single Hadoop cluster?
Which are the three modes in which hadoop can be run?
What is replication factor?
In hadoop_pid_dir, what does pid stands for?
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