On what basis data will be stored on a rack?
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What is a heartbeat in HDFS?
Which files are used by the startup and shutdown commands?
What are the network requirements for using hadoop?
What is the difference between traditional RDBMS and Hadoop?
What is Rack awareness?
What is the function of NodeManager?
What are the basic available commands in Hadoop sqoop ?
Is hadoop a database?
What are the characteristics of hadoop framework?
Explain what if rack 2 and datanode fails?
Define a task tracker?
What is partioner in hadoop? Where does it run,mapper or reducer?
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