Friday 15 May 2015

Hadoop Interview questions 2015 - Part3

1. How do you handle exceptions in MapReduce?
2. Modeling in NoSQL
3. Explain about one of the MapReduce program that you have implemented which u think it can't be done with Hive/Pig
4. What kind of initial validations that you will do on data before processing?
5. Explain when to choose MapReduce?
6. Differences b/w MapR 1 & 2
7. What is HA node in hadoop?  Do we have this in MapR 1?
8. What are the issues you faced in hadoop projects?
9.Difference between MapR and Cloudera distributions
10. What are the factors considered to decide key and the key format in mapreduce?

 A good reference for Shell scripting  https://linuxcommand.org/lc3_writing_shell_scripts.php