Explain the hadoop-core configuration?
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How to enable trash/recycle bin in hadoop?
What is Apache Hadoop?
Can you explain how do ‘map’ and ‘reduce’ work?
what are Task Tracker and Job Tracker?
explain Metadata in Namenode?
How can we check whether namenode is working or not?
What is a namenode? How many instances of namenode run on a hadoop cluster?
What is difference between regular file system and HDFS?
How is security achieved in Apache Hadoop?
How we can take Hadoop out of Safe Mode?
What is the difference between Apache Hadoop and RDBMS?
Can we have multiple entries in the master files?
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