How does a namenode handle the failure of the data nodes?
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Can you explain how do ‘map’ and ‘reduce’ work?
What are the stable versions of Hadoop?
How is the option in Hadoop to skip the bad records?
Is it necessary to write jobs for hadoop in the java language?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What infrastructure do we need to process 100 TB data using Hadoop?
what is the default replication factor in HDFS?
Does this lead to security issues?
Why is hadoop faster?
what is a datanode?
Can hive run without hadoop?
Define a commodity hardware? Does commodity hardware include ram?
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