What do you understand by a closure in scala?
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Can you give a detailed overview about the Big Data being generated by Facebook?
What are the restriction to the key and value class ?
What is Federation?
What type of data hadoop can handle ?
Is it possible to provide multiple input to Hadoop? If yes then how?
How to use combiner in hadoop ?
How to create a user in Hadoop?
Mention what is rack awareness?
What is Disk Balancer in Hadoop?
What is distributed copy (distcp)?
How ordering in hdfs is finished?
Is it possible to rename the output file, and if so, how?
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