What is a Backup node in Hadoop?
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What happens if you don?t override the mapper methods and keep them as it is?
What is a combiner in hadoop?
What is difference between secondary namenode, checkpoint namenode & backupnode?
Explain Data Locality in Hadoop?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
What does name-node mean in hadoop?
Can you explain edge nodes in hadoop?
What are the hadoop configuration files at present?
What are the major differences between Hadoop 2 and Hadoop 3?
Why is Data Block size set to 128 MB in Hadoop?
If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?
What is a Heartbeat in Hadoop?
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