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What are the network requirements for hadoop?
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Explain the core methods of the reducer?
Mention what are the most common input formats defined in hadoop?
What is check pointing in hadoop?
What is the relationship between Jobs and Tasks in Hadoop?
What are the primary phases of the reducer?
In hadoop_pid_dir, what does pid stands for?
What are the different commands used to startup and shutdown Hadoop daemons?
What are the network requirements for hadoop?
Why we use intwritable instead of int? Why we use longwritable instead of long?
If DataNode increases, then do we need to upgrade NameNode?
Specify what the information segments utilized by hadoop are?
Do we require two servers for the namenode and the datanodes?
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