Can you explain commodity hardware?
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What is a rack?
What are the differences between hadoop 1 and hadoop 2?
Have you ever used counters in hadoop?
Explain map-only job?
What is Chain Mapper?
List out the different stream grouping in apache storm?
Ideally what should be the block size in hadoop?
What does hadoop-env.sh do?
How many daemon processes run on a hadoop cluster?
How many job tracker processes can run on a single Hadoop cluster?
Define a record reader?
When we send a data to a node, do we allow settling in time, before sending another data to that node?
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