On What concept the Hadoop framework works?
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What is the difference between traditional RDBMS and Hadoop?
How can you overwrite the replication factors in HDFS?
What are watches?
Why do we need a password-less ssh in fully distributed environment?
What is a Combiner?
What happens in a textinputformat?
What does /var/hadoop/pids do?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
Why do we use HDFS for applications having large data sets and not when there are lot of small files?
What is Writable & WritableComparable interface?
What is inputsplit in hadoop? Explain.
What is compute and Storage nodes?
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