Is hadoop a memory?
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What is structured data?
Why do we use HDFS for applications having large data sets and not when there are lot of small files?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
On what basis data will be stored on a rack?
Is hadoop obsolete?
What is a Combiner?
What are channel selectors?
What do shuffling do?
Who invented hadoop?
when hadoop enter in safe mode?
What is the difference between hadoop and other data processing tools?
Does the hdfs client decide the input split or namenode?