What are the primary phases of the reducer?
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Explain some important features of hadoop?
What is LazyOutputFormat in Hadoop?
Explain the key benefits of using storm for real time processing?
List of the some best tools that can be useful for data-analysis?
Can you explain hadoop streaming?
What is the purpose of context object?
What happens if you get a ‘connection refused java exception’ when you type hadoop fsck /?
How often do you need to reformat the namenode?
What is Mapper in Hadoop?
What is meant by streaming access?
Name the files which are used by the startup and shutdown commands?
Whats the default port that jobtrackers listens ?
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