Wednesday, May 3, 2017

Hadoop general interview questions


  1. architecture component of Hadoop
  2. os level optimisation
  3. prerequisites before installing
  4. how to bring data
  5. what all we need to make sure in order to copy data from one cluster
  6. scenarios and use of the scheduler
  7. I want to implement department wise access level on hdfs and yarn
  8. job flow in yarn
  9. how resource allocation happens in yarn
  10. what is the file read/write flow
  11. how different nodes in a cluster communicate with each other
  12. how the request flows through zookeepers
  13. please tell something about read/write pipeline on Hadoop
  14. how do you do deployments on many servers at once

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