Define a task tracker?
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explain Metadata in Namenode?
What are the basic available commands in Hadoop sqoop ?
Explain the master class and the output class do?
Can hive run without hadoop?
What is inputformat in hadoop?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
Why do we need a password-less ssh in fully distributed environment?
What is high availability in hadoop?
Explain the hadoop configuration files at present?
How Mapper is instantiated in a running job?
What other technologies have you used in hadoop sta ck?
What is the Use of SSH in Hadoop ?