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On What concept the Hadoop framework works?
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how would you modify that solution to only count the number of unique words in all the documents?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
What does /var/hadoop/pids do?
What are the additional benefits YARN brings in to Hadoop?
What is small file problem in hadoop?
What is a heartbeat in HDFS?
How we can change Replication factor when Data is on the fly?
How client application interacts with the NameNode?
What is the function of NodeManager?
How can you overwrite the replication factors in HDFS?
What is Rack awareness?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
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