What is version-id mismatch error in hadoop?
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Explain Erasure Coding in Apache Hadoop?
What is the functionality of jobtracker in hadoop?
Input Split & Record Reader and what they do?
On what basis data will be stored on a rack?
Can NameNode and DataNode be a commodity hardware?
What are the most commonly defined input formats in Hadoop?
Explain a simple Map/Reduce problem.
What is the problem with HDFS and streaming data like logs
How many JVMs run on a slave node?
What is HDFS block size and what did you chose in your project?
Define streaming access?
Explain why the name ‘hadoop’?