What is InputSplit and RecordReader?
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What alternate way does HDFS provides to recover data in case a Namenode
What is the difference between Apache Hadoop and RDBMS?
What is IdentityMapper?
Which data storage components are used by hadoop?
Is hadoop a database?
What is the difference between hadoop and other data processing tools?
How many maximum jvm can run on a slave node?
What are the problems with Hadoop 1.0?
Explain the wordcount implementation via hadoop framework ?
Give the use of the bootstrap panel.
What are different types of filesystem?
Can we do online transactions(oltp) using hadoop?
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