private void calculateToBePreemptedResourcePerApp(Resource clusterResource,
TreeSet<TempAppPerPartition> orderedApps, Resource preemptionLimit) {
for (TempAppPerPartition tmpApp : orderedApps) {
if (Resources.lessThanOrEqual(rc, clusterResource, preemptionLimit,
Resources.none())
|| Resources.lessThanOrEqual(rc, clusterResource, tmpApp.getUsed(),
Resources.none())) {
continue;
}
Resource preemtableFromApp = Resources.subtract(tmpApp.getUsed(),
tmpApp.idealAssigned);
Resources.subtractFromNonNegative(preemtableFromApp, tmpApp.selected);
Resources.subtractFromNonNegative(preemtableFromApp, tmpApp.getAMUsed());
if (context.getIntraQueuePreemptionOrderPolicy()
.equals(IntraQueuePreemptionOrderPolicy.USERLIMIT_FIRST)) {
Resources.subtractFromNonNegative(preemtableFromApp,
tmpApp.getFiCaSchedulerApp().getCSLeafQueue().getMinimumAllocation());
}
tmpApp.toBePreempted = Resources.min(rc, clusterResource, Resources
.max(rc, clusterResource, preemtableFromApp, Resources.none()),
Resources.clone(preemptionLimit));
preemptionLimit = Resources.subtractFromNonNegative(preemptionLimit,
tmpApp.toBePreempted);
}
}