What is hadoop framework?
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Can NameNode and DataNode be a commodity hardware?
What is HDFS High Availability?
How is the option in Hadoop to skip the bad records?
What will you do when NameNode is down?
How would you tackle counting words in several text documents?
What is HDFS - Hadoop Distributed File System?
How did you debug your Hadoop code ?
How many instances of tasktracker run on a hadoop cluster?
What are the network requirements for using hadoop?
Why do we use HDFS for applications having large data sets and not when there are lot of small files?
How to Administering Hadoop?
How Mapper is instantiated in a running job?
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