How can I restart namenode?
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What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What does ‘jps’ command do?
What is IdentityMapper?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
How does a namenode handle the failure of the data nodes?
What is 'Key value pair' in HDFS?
How many maximum jvm can run on a slave node?
How blocks are distributed among all data nodes for a particular chunk of data?
how would you modify that solution to only count the number of unique words in all the documents?
What happens in a textinputformat?
What alternate way does HDFS provides to recover data in case a Namenode
What are the functions of NameNode?
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