List out the different stream grouping in apache storm?
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What is job tracker in Hadoop?
What is a commodity hardware? Does commodity hardware include RAM?
Explain small file problem in hadoop
How many maps are there in a particular job?
What is the difference between namenode and datanode in hadoop?
After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?
Explain how can you debug hadoop code?
What do you understand by standalone (or local) mode?
How can we create a hadoop cluster from scratch?
In which directory hadoop is installed?
What happen on the namenode when a client tries to read a data file?
Explain the key benefits of using storm for real time processing?
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