How can I restart namenode?
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What is Hadoop streaming?
What is InputSplit and RecordReader?
Define streaming access?
How you can contact your client everyday ?
What problems have you faced when you are working on Hadoop code?
Can the balancer be run while Hadoop is in use?
What does the command mapred.job.tracker do?
What is the use of combiners in the hadoop framework?
What hadoop does in safe mode?
How many instances of tasktracker run on a hadoop cluster?
Is it necessary to know java to learn hadoop?
What are the additional benefits YARN brings in to Hadoop?
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