What happens to job tracker when namenode is down?
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Define a namenode?
What is inputformat in hadoop?
Explain InputFormat?
What is the InputFormat ?
shouldn't DFS be able to handle large volumes of data already?
Why do we use Hadoop?
Explain what is the purpose of RecordReader in Hadoop?
What is the process to change the files at arbitrary locations in HDFS?
What are the functions of NameNode?
Why do we use HDFS for applications having large data sets and not when there are lot of small files?
Whats is distributed cache in hadoop?
How to exit the vi editor?
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