@PublicAPI public class SingleHostExclusiveDescriptor extends SingleHostDescriptor
By specifying this descriptor in
ResourceManager.getAtMostNodes user may get
more nodes than it asked for due to the fact that total capacity of hosts is
bigger (even thought the resource manager tries to find the optimal host
minimizing the waist of resources), namely
if user requested k nodes - the machine with exact capacity will be selected if exists - the machine with bigger capacity will be selected if exists. The capacity of the selected machine will be the closest to k. - the machine with smaller capacity than k will be selected. In this case the capacity of selected host will be the biggest among all other.
ARBITRARY, BEST_PROXIMITY, DIFFERENT_HOSTS_EXCLUSIVE, MULTIPLE_HOSTS_EXCLUSIVE, SINGLE_HOST, SINGLE_HOST_EXCLUSIVE
|Constructor and Description|
Constructs the new instance of this class.