If DataNode increases, then do we need to upgrade NameNode in Hadoop?
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Is it possible to have hadoop job output in multiple directories? If yes, how?
Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?
Is there another way to check whether Namenode is working?
Is it possible to have hadoop job output in multiple directories?
Give me examples of unstructured data?
Explain what is storage and compute nodes?
is there a standard procedure to deploy hadoop?
Can you explain combiner?
What is fsck?
Why use hadoop?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
Clarify how job tracker schedules an assignment?
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