What is the best hardware configuration to run Hadoop?
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What is unstructured data?
What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?
What is the function of ApplicationMaster?
Why do we need a password-less ssh in fully distributed environment?
Which is the best hadoop certification?
what factors the block size takes before creation?
How can we change the split size if our commodity hardware has less storage space?
What are the modes in which Apache Hadoop run?
Name some companies that use Hadoop?
what is meaning Replication factor?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
What's the best way to copy files between HDFS clusters?
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