Explain Erasure Coding in Hadoop?
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What is winutils hadoop?
Explain what happens in text format?
What happens if you don?t override the mapper methods and keep them as it is?
What sorts of actions does the job tracker process perform?
What is the use of recordreader in hadoop?
Explain what is speculative execution?
Explain how can we check whether namenode is working or not?
What is Reducer in Hadoop?
What is difference between secondary namenode, checkpoint namenode & backupnode?
Explain what is a task tracker in hadoop?
Whats the default port that jobtrackers listens ?
How can one check whether NameNode is working or not?
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