What are the two main parts of the hadoop framework?
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Explain the basic difference between traditional rdbms and hadoop?
Data Engineer Given a list of followers in the format:123, 345234, 678345, 123…Where column one is the ID of the follower and column two is the ID of the followee. Find all mutual following pairs (the pair 123, 345 in the example above). How would you use Map/Reduce to solve the problem when the list does not fit in memory?
What's the best way to copy files between HDFS clusters?
what is a datanode?
Name the examples of some companies that are using hadoop structure?
What is inputformat in hadoop?
What is a checkpoint?
How is security achieved in Apache Hadoop?
What is the function of NodeManager?
What is the InputFormat ?
What do you mean by taskinstance?
Explain the hadoop-core configuration?
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