Is hadoop still in demand?
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What is the job tracker role in hadoop?
Can you define udf?
Explain map-only job?
What is the role of the secondary namenode?
Whats the default port that jobtrackers listens ?
How does speculative execution work in Hadoop?
What are the hadoop configuration files at present?
In which directory hadoop is installed?
is there a standard procedure to deploy hadoop?
What happen if number of reducer is set to 0 in Hadoop?
What is High Availability feature in Hadoop2?
Can we write map reduce program in other than java programming language. How?
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