While starting hadoop services, datanode service is not running?
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What are the most common OutputFormat in Hadoop?
Define “speculative execution” in hadoop?
List Hadoop’s three configuration files?
What is JPS? Why is it used in Hadoop?
What are the most common InputFormats in Hadoop?
What are input format, input split & record reader and what they do?
What is the use of context object?
Which language is more suitable for text analytics? R or python?
What does rack awareness algorithm means?
Why do we need hadoop for big data analytics?
Clarify what a task tracker is in hadoop?
Is hadoop still in demand?
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