Explain the core methods of the reducer?
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Which port does SSH work on?
Explain the usage of Context Object?
How to debug Hadoop code?
Mention what is distributed cache in hadoop?
What is the procedure for namenode recovery?
How to do ‘map’ and ‘reduce’ works?
What is the most widely recognized info formats characterized in hadoop?
How many job tracker processes can run on a single Hadoop cluster?
What is Mapper? How can we compress Mapper output in Hadoop?
What sorts of actions does the job tracker process perform?
How many InputSplits will be made by hadoop framework?
What webdav is in hadoop?
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