What does /var/hadoop/pids do?
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Where is the Mapper Output stored?
Is map like a pointer?
Can you tell us more about ssh?
Explain what is the purpose of RecordReader in Hadoop?
What are the benefits of block transfer?
What is zookeeper in hadoop?
What are the problems with Hadoop 1.0?
What is Derby database?
How is hadoop different from other data processing tools?
How do you define "block" in HDFS?
what is meaning Replication factor?
What is hadoop framework?
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