You are migrating a cluster from MApReduce version 1 (MRv1) to MapReduce version 2
(MRv2) on YARN. You want to maintain your MRv1 TaskTracker slot capacities when you
migrate. What should you do/

A.
Configure yarn.applicationmaster.resource.memory-mb and
yarn.applicationmaster.resource.cpu-vcores so that ApplicationMaster container allocations
match the capacity you require.

B.
You don’t need to configure or balance these properties in YARN as YARN dynamically
balances resource management capabilities on your cluster

C.
Configure mapred.tasktracker.map.tasks.maximum and
mapred.tasktracker.reduce.tasks.maximum ub yarn-site.xml to match your cluster’s capacity
set by the yarn-scheduler.minimum-allocation

D.
Configure yarn.nodemanager.resource.memory-mb and
yarn.nodemanager.resource.cpuvcores to match the capacity you require under YARN for
each NodeManager