Explain Hadoop streaming?
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Name the files which are used by the startup and shutdown commands?
How NameNode tackle Datanode failures in Hadoop?
Why would nosql be better than using a sql database? And how much better is it?
Why slaves limited to 4000 in hadoop version 1?
Clarify how ordering in hdfs is finished?
Can you define inputsplit in hadoop?
How many job tracker processes can run on a single Hadoop cluster?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
List of the some best tools that can be useful for data-analysis?
Is it possible to have hadoop job output in multiple directories?
Can you explain record reader?
If DataNode increases, then do we need to upgrade NameNode in Hadoop?
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