What are 'slaves' and 'masters' in Hadoop?
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Is it possible to rename the output file, and if so, how?
What sorts of actions does the job tracker process perform?
Web-ui shows that half of the datanodes are in decommissioning mode. What does that mean? Is it safe to remove those nodes from the network?
What does rack awareness algorithm means and why is it utilized as a part of hadoop?
What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?
What happen if a datanode loses network connection for a few minutes?
What happens if the number of reducers is 0 in Hadoop?
Is there another way to check whether Namenode is working?
List out the some common problems faced by data analyst?
Is it possible to have hadoop job output in multiple directories? If yes, how?
What is the NameNode port number?
Which scala library is used for functional programming?
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