What are the important differences between apache and hadoop?
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What happens to a namenode, when job tracker is down?
What is small file problem in hadoop?
What is Rack awareness?
Give the use of the bootstrap panel.
Explain how is hadoop different from other data processing tools?
How to configure hadoop to reuse JVM for mappers?
What is unstructured data?
What is MapFile?
Why do we use Hadoop?
What is crontab? Explain with suitable example?
Is hadoop a memory?
What are the main components of a Hadoop Application?
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