What do slaves consist of?
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Explain why do we need hadoop?
Which data storage components are used by hadoop?
What's the best way to copy files between HDFS clusters?
What are the network requirements for using hadoop?
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
What do sorting do?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
What is a block and block scanner in HDFS?
What is a secondary namenode?
Is hadoop required for data science?
Is hadoop based on google mapreduce?
Is hadoop a database?