Which command is used for the retrieval of the status of daemons running the hadoop cluster?
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Explain a simple Map/Reduce problem.
what are the steps involved in commissioning adding
What does /var/hadoop/pids do?
How we can take Hadoop out of Safe Mode?
Define a combiner?
What are the main components of a Hadoop Application?
Is map like a pointer?
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Data Engineer Given a list of followers in the format:123, 345234, 678345, 123…Where column one is the ID of the follower and column two is the ID of the followee. Find all mutual following pairs (the pair 123, 345 in the example above). How would you use Map/Reduce to solve the problem when the list does not fit in memory?
How to configure hadoop to reuse JVM for mappers?
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