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Can we write map reduce program in other than java programming language. How?
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What do you think about the speculative execution?
What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?
what happens when namenode goes down during file read operation in hadoop?
What are the parameters of mappers and reducers?
What happen on the namenode when a client tries to read a data file?
Which database is used in hadoop?
Explain what is webdav in hadoop?
Clarify what is sequence file input format?
What are the port numbers of namenode?
What is Slot in Hadoop v1? Why was it removed from Hadoop v2?
How to add/delete a Node to the existing cluster?
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