Un-Answered Questions { Hadoop General }
If datanodes increase, then do we need to upgrade namenode?
Which object can be used to get the progress of a particular job
Give me examples of unstructured data?
Explain the core methods of the reducer?
How to handle bad records during parsing?
What is the use of context object?
What happens if number of reducers are 0?
What are the primary phases of the reducer?
what is next step after mapper or maptask?
What is a rack?
Do we require two servers for the namenode and the datanodes?
We have already sql then why nosql?
What is difference between reducer and combiner?
What do you understand by standalone (or local) mode?
What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
