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What Are The Additional Benefits Yarn Brings In To Hadoop?

Answer»

Effective utilization of the resources as multiple applications can be run in YARN all sharing a common resource. In Hadoop MAPREDUCE there are seperate slots for Map and Reduce TASKS whereas in YARN there is no fixed SLOT. The same container can be used for Map and Reduce tasks leading to better utilization.

  • YARN is backward compatible so all the existing MapReduce JOBS.
  • Using YARN, one can even run applications that are not based on the MapReduce model.

Effective utilization of the resources as multiple applications can be run in YARN all sharing a common resource. In Hadoop MapReduce there are seperate slots for Map and Reduce tasks whereas in YARN there is no fixed slot. The same container can be used for Map and Reduce tasks leading to better utilization.


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