Explain the core methods of the reducer?
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What are the Hadoop features extended to its eco-system components ?
Explain the key benefits of using storm for real time processing?
What is check pointing in hadoop?
How to create a user in Hadoop?
Do we need to place 2nd and 3rd data in rack 2 only?
After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?
When and how to create hadoop archive?
List of some best tools that can be useful for data-analysis?
How can you set an arbitrary number of mappers to be created for a job in Hadoop?
Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?
What does name-node mean in hadoop?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
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