Which modes can Hadoop be run in? List a few features for each mode?
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What is Small File Problem in Hadoop? How can it be resolved?
List of the some best tools that can be useful for data-analysis?
what is next step after mapper or maptask?
Explain Erasure Coding in Hadoop?
What is data cleansing?
Explain some important features of hadoop?
How can you set an arbitrary number of Reducers to be created for a job in Hadoop?
Can you explain rack awareness?
Are job tracker and task trackers present in separate machines?
What is a record reader?
What is Disk Balancer in Hadoop?
What is structured and unstructured data?
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