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How to keep HDFS cluster balanced?
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What happens to job tracker when namenode is down?
Name the various types of lists supported by bootstrap.
Is it necessary to write jobs for hadoop in the java language?
What is the jobtracker and what it performs in a hadoop cluster?
How is hadoop different from other data processing tools?
What are the limitations of importing RDBMS tables into Hcatalog directly?
What should be the ideal replication factor in Hadoop Cluster?
What is the difference between Hadoop and Traditional RDBMS?
What are the four characteristics of Big Data?
Should we use RAID in Hadoop or not?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
what is difference between int and intwritable?
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