What is DistributedCache and its purpose?
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explain Metadata in Namenode?
What are the characteristics of hadoop framework?
Explain a simple Map/Reduce problem.
How to change replication factor of files already stored in HDFS?
What is Rack Awareness in Apache Hadoop?
How is security achieved in Apache Hadoop?
How many maximum jvm can run on a slave node?
What is rack-aware replica placement policy?
What are the functions of NameNode?
What is the difference between HDFS and NAS ?
What do you know by storage and compute node?
Is hadoop required for data science?
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