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After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?
What is streaming in Hadoop?
What is a commodity hardware? Does commodity hardware include RAM?
What is streaming access?
How can you set an arbitrary number of Reducers to be created for a job in Hadoop?
Give examples of some companies that are using Hadoop structure?
Which modes can Hadoop be run in? List a few features for each mode?
How analysis of Big Data is useful for organizations?
What does the file hadoop-metrics.properties do?
Hadoop achieves parallelism by dividing the tasks across many nodes, it is possible for a few slow nodes to rate-limit the rest of the program and slow down the program. What mechanism Hadoop provides to combat this?
How will you write a custom partitioner for a Hadoop job?
Give me the examples of Columnar database ?
What are 'slaves' and 'masters' in Hadoop?
What is Fault Tolerance?
What is the basic difference between traditional RDBMS and Hadoop?
