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What is the characteristic of streaming API that makes it flexible run MapReduce jobs in languages like Perl, Ruby, Awk etc.?
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Hadoop achieves parallelism by dividing the tasks across many nodes, it is possible for a few slow nodes to rate-limit the rest of the program and slow down the program. What mechanism Hadoop provides to combat this?
is there a standard procedure to deploy hadoop?
Can you explain sequence file in hadoop?
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Give examples of some companies that are using Hadoop structure?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
What is rack awareness in hadoop?
Explain about Hadoop file system and processing framework?
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Compare Hadoop and RDBMS?
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