Daily Archives: May 17, 2014

Mapreduce Interview Questions and Answers for Experienced Part – 3 2

Below are a few more hadoop mapreduce interview questions and answers for experienced and freshers hadoop developers. Hadoop Mapreduce Interview Questions and Answers for Experienced: 1.  After restart of namenode, Mapreduce jobs started failing which worked fine before restart. What could be the wrong ? The cluster could be in a safe mode after the restart of a namenode. The administrator needs to wait for namenode to exit the safe […]

Review Comments
default image

I have attended Siva’s Spark and Scala training. He is good in presentation skills and explaining technical concepts easily to everyone in the group. He is having excellent real time experience and provided enough use cases to understand each concepts. Duration of the course and time management is awesome. Happy that I found a right person on time to learn Spark. Thanks Siva!!!

Dharmeswaran ETL / Hadoop Developer Spark Nov 2016 September 21, 2017