Define a combiner?
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what should be the ideal replication factor in hadoop?
What is the purpose of button groups?
What is HDFS Block size? How is it different from traditional file system block size?
What exactly is hadoop?
How can you connect an application
What are sink processors?
Explain the benefits of block transfer?
Which are the three main hdfs-site.xml properties?
What is the sequencefileinputformat in hadoop?
How to resolve small file problem in hdfs?
How a task is scheduled by a jobtracker?
How can I restart namenode?
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