How many daemon processes run on a hadoop cluster?
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What are the limitations of Hadoop?
What is a Heartbeat in Hadoop?
What is purpose of RecordWriter in Hadoop?
What is replication factor?
Compare Hadoop and RDBMS?
What are the primary phases of the reducer?
Can you explain sequence file in hadoop?
What does the mapred.job.tracker command do?
What webdav is in hadoop?
How can one write custom record reader?
Which database is used in hadoop?
What are the common types of NOSQL data bases ?
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