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What is output format in hadoop?
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How many maximum jvm can run on a slave node?
Is secondary namenode a substitute to the namenode?
what is the typical block size of an HDFS block?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
How would you tackle counting words in several text documents?
What are active and passive "NameNodes"?
Explain the features of fully distributed mode?
Define a datanode?
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Which are the three main hdfs-site.xml properties?
Command to format the NameNode?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
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