what should be the ideal replication factor in hadoop?
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On what basis data will be stored on a rack?
How can you connect an application
What do the master class and the output class do?
How to change replication factor of files already stored in HDFS?
What are the important differences between apache and hadoop?
Explain the Job OutputFormat?
What happens to a NameNode that has no data?
What is the sequencefileinputformat in hadoop?
What are the different methods to run Spark over Apache Hadoop?
How many instances of tasktracker run on a hadoop cluster?
Explain the basic architecture of Hadoop?
What is a secondary namenode?
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