Explain InputSplit in Hadoop?
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How often DataNode send heartbeat to NameNode in Hadoop?
What are the parameters of mappers and reducers?
While starting hadoop services, datanode service is not running?
After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?
How can one check whether NameNode is working or not?
What are the important features of hadoop?
What is Small File Problem in Hadoop? How can it be resolved?
Explain what is hadoop?
Define a record reader?
Explain what is webdav in hadoop?
Specify what the information segments utilized by hadoop are?
Why would nosql be better than using a sql database? And how much better is it?
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