What is Reducer in Hadoop?
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Can you give a detailed overview about the Big Data being generated by Facebook?
what is next step after mapper or maptask?
Did you ever ran into a lop sided job that resulted in out of memory error, if yes then how did you handled it ?
What is winutils hadoop?
What is the key difference between NameNode and DataNode in Hadoop?
Can you explain combiner?
Explain Hadoop Archives?
How to add/delete a Node to the existing cluster?
How many daemon processes run on a hadoop cluster?
When we send a data to a node, do we allow settling in time, before sending another data to that node?
What is Disk Balancer in Hadoop?
How analysis of Big Data is useful for organizations?
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