What's the best way to copy files between HDFS clusters?
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Is hadoop a database?
What is Apache Hadoop?
What is HDFS Block size? How is it different from traditional file system block size?
How to change Replication Factor For below cases ?
Whats is distributed cache in hadoop?
What is 'Key value pair' in HDFS?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
What is the main purpose of HDFS fsck command?
Give the use of the bootstrap panel.
What do you know about keyvaluetextinputformat?
What is the purpose of RawComparator interface?
What is the InputFormat ?
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