What are the main components of hadoop?
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After increasing the replication level, I still see that data is under replicated. What could be wrong?
What is Balancer in Hadoop?
List Hadoop’s three configuration files?
what is next step after mapper or maptask?
When should be hadoop archive create?
Which are the three modes in which hadoop can be run?
What do you think about the speculative execution?
Which operating system(s) are supported for production hadoop deployment?
Explain Hadoop Archives?
What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?
What are the main components of hadoop?
Explain the key benefits of using storm for real time processing?
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