What is HDFS High Availability?
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If a data Node is full how it's identified?
What are different hdfs dfs shell commands to perform copy operation?
Is a job split into maps?
What are the site-specific configuration files in Hadoop?
In which location Name Node stores its Metadata and why?
On what basis data will be stored on a rack?
How is HDFS fault tolerant?
How to Administering Hadoop?
How to change replication factor of files already stored in HDFS?
Can you explain how do ‘map’ and ‘reduce’ work?
What are the hadoop's three configuration files?
Which data storage components are used by hadoop?
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