What is tasktracker in hadoop?
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What are the different commands used to startup and shutdown Hadoop daemons?
What is the command to change the replication factor ?
What happen if one of the datanodes has much slower cpu?
What is High Availability feature in Hadoop2?
What is replication factor?
What are the configuration files in Hadoop?
what is next step after mapper or maptask?
What is the key difference between NameNode and DataNode in Hadoop?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
For using hadoop list the network requirements?
What is the logistic regression?
Can you explain record reader?
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