In which directory hadoop is installed?
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What is purpose of RecordWriter in Hadoop?
What happen if number of reducer is set to 0 in Hadoop?
What is LazyOutputFormat in Hadoop?
Hadoop achieves parallelism by dividing the tasks across many nodes, it is possible for a few slow nodes to rate-limit the rest of the program and slow down the program. What mechanism Hadoop provides to combat this?
How ordering in hdfs is finished?
What is 'jps'?
List Hadoop’s three configuration files?
Explain what is jobtracker in hadoop? What are the actions followed by hadoop?
What is the problem with small files in Hadoop?
What is the command to change the replication factor ?
What are the core components of Hadoop?
What are the side effects of not running a secondary name node?
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