What are the modes in which Hadoop run?
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Do we need to place 2nd and 3rd data in rack 2 only?
Explain how jobtracker schedules a task?
What happens when two clients try to access the same file in the hdfs?
What is the role of the secondary namenode?
What does the file hadoop-metrics.properties do?
What is JobTracker?
Which operating system(s) are supported for production hadoop deployment?
How to debug Hadoop code?
What is meant by streaming access?
What is partitioning?
What are the functionalities of jobtracer?
What is difference between reducer and combiner?
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