How we can take Hadoop out of Safe Mode?
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What are the modules that constitute the Apache Hadoop 2.0 framework?
Explain why the name ‘hadoop’?
Can you tell us more about ssh?
What is a block and block scanner in HDFS?
What is formatting of the dfs?
What are sink processors?
What is Input Split in hadoop?
How does a namenode handle the failure of the data nodes?
What's the best way to copy files between HDFS clusters?
What happens in a textinputformat?
Explain how is hadoop different from other data processing tools?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
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