Your cluster is running MapReduce vserion 2 (MRv2) on YARN. Your ResourceManager is
configured to use the FairScheduler. Now you want to configure your scheduler such that a new
user on the cluster can submit jobs into their own queue application submission. Which
configuration should you set?
A.
You can specify new queue name when user submits a job and new queue can be created
dynamically if yarn.scheduler.fair.user-as-default-queue = false
B.
Yarn.scheduler.fair.user-as-default-queue = false and yarn.scheduler.fair.allow-undeclaredpeople = true
C.
You can specify new queue name per application in allocation.fair.allow-undeclared-people =
true automatically assigned to the application queue
D.
You can specify new queue name when user submits a job and new queue can be created
dynamically if the property yarn.scheduler.fair.allow-undecleared-pools = true
Should be “D”
Setting yarn.scheduler.fair.allow-undeclared-pools = true allows us to specify a queue name via -D mapreduce.job.queuename when we submit job
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yarn.scheduler.fair.allow-undeclared-pools
If this is true, new queues can be created at application submission time, whether because they are specified as the application’s queue by the submitter or because they are placed there by the user-as-default-queue property. If this is false, any time an app would be placed in a queue that is not specified in the allocations file, it is placed in the “default” queue instead. Defaults to true. If a queue placement policy is given in the allocations file, this property is ignored.
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I choose A
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