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Comparison between Secondary NameNode and Checkpoint Node in Hadoop?
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Clarify what is sequence file input format?
What are the network requirements for hadoop?
What is the command to change the replication factor ?
Name the most common Input Formats defined in Hadoop? Which one is default?
If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?
What sorts of actions does the job tracker process perform?
What is a namenode?
What is the job tracker role in hadoop?
What does hadoop-env.sh do?
Explain what is namenode in hadoop?
What is Mapper in Hadoop?
What is the problem with small files in Hadoop?
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