Do we need to place 2nd and 3rd data in rack 2 only?
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What is tasktracker in hadoop?
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What is the command to change the replication factor ?
If datanodes increase, then do we need to upgrade namenode?
Mention what is rack awareness?
What does block mean?
What does jps command do in Hadoop?
What is fsck?
Define “speculative execution” in hadoop?
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How namenode handles data node failures?
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