What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
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Is it necessary to know java to learn hadoop?
What do sorting do?
Explain the shuffle?
What are the stable versions of Hadoop?
Can hive run without hadoop?
How is the option in Hadoop to skip the bad records?
How is HDFS fault tolerant?
What Mapper does?
How does master slave architecture in the hadoop?
Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
How to resolve small file problem in hdfs?
Where is the Mapper Output stored?
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