What is IdentityMapper?
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What is Hadoop Custom partitioner ?
Give the use of the bootstrap panel.
What Mapper does?
How can I restart namenode?
How to keep HDFS cluster balanced?
What alternate way does HDFS provides to recover data in case a Namenode
Can you tell us more about ssh?
What is Hadoop?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
How we can take Hadoop out of Safe Mode?
What if rack 2 and datanode fails?
What is a task instance in hadoop? Where does it run?
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