What is Small File Problem in Hadoop? How can it be resolved?
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How does speculative execution work in Hadoop?
What are the port numbers of namenode?
Give me examples of unstructured data?
What is a commodity hardware? Does commodity hardware include RAM?
Ideally what should be replication factor in a Hadoop cluster?
What does hadoop-env.sh do?
What mode(s) can hadoop code be run in?
Can we deploye job tracker other than name node?
Mention how many inputsplits is made by a hadoop framework?
What are the side effects of not running a secondary name node?
What does jps command do in Hadoop?
When and how to create hadoop archive?
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