What is throughput in Hadoop?
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How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
Which modes can Hadoop be run in? List a few features for each mode?
What are the features of Fully-Distributed mode?
If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?
Name the operating system(s) which are supported for production hadoop deployment?
Name the most common input formats defined in hadoop?
What happen on the namenode when a client tries to read a data file?
What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?
Give me examples of unstructured data?
Mention how hadoop is different from other data processing tools?
What does the file hadoop-metrics.properties do?
How would an hadoop administrator deploy various components of hadoop in production?
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