How to use

CapacityReservationSystem

in

org.apache.hadoop.yarn.server.resourcemanager.reservation

@Override
protected Resource getPlanQueueCapacity(String planQueueName) {
 Resource minAllocation = getMinAllocation();
 ResourceCalculator rescCalc = getResourceCalculator();
 CSQueue planQueue = capScheduler.getQueue(planQueueName);
 return rescCalc.multiplyAndNormalizeDown(capScheduler.getClusterResource(),
   planQueue.getAbsoluteCapacity(), minAllocation);
}

  new CapacityReservationSystem();
CapacitySchedulerConfiguration conf = capScheduler.getConfiguration();
RMContext mockContext = capScheduler.getRMContext();
reservationSystem.setRMContext(mockContext);
try {
 reservationSystem.reinitialize(capScheduler.getConfiguration(),
   mockContext);
} catch (YarnException e) {
Assert.assertNull(reservationSystem.getPlan(newQ));
testUtil.updateQueueConfiguration(conf, newQ);
try {
 reservationSystem.reinitialize(conf, mockContext);
} catch (YarnException e) {
 Assert.fail(e.getMessage());

@Test
public void testInitialize() {
 ReservationSystemTestUtil testUtil = new ReservationSystemTestUtil();
 CapacityScheduler capScheduler = null;
 try {
  capScheduler = testUtil.mockCapacityScheduler(10);
 } catch (IOException e) {
  Assert.fail(e.getMessage());
 }
 CapacityReservationSystem reservationSystem =
   new CapacityReservationSystem();
 reservationSystem.setRMContext(capScheduler.getRMContext());
 try {
  reservationSystem.reinitialize(capScheduler.getConf(),
    capScheduler.getRMContext());
 } catch (YarnException e) {
  Assert.fail(e.getMessage());
 }
 String planQName = testUtil.getreservationQueueName();
 ReservationSystemTestUtil.validateReservationQueue(reservationSystem,
   planQName);
}

public AbstractReservationSystem configureReservationSystem() {
 switch (getSchedulerType()) {
 case CAPACITY:
  return new CapacityReservationSystem();
 case FAIR:
  return new FairReservationSystem();
 }
 return null;
}

@Override
protected Resource getPlanQueueCapacity(String planQueueName) {
 Resource minAllocation = getMinAllocation();
 ResourceCalculator rescCalc = getResourceCalculator();
 CSQueue planQueue = capScheduler.getQueue(planQueueName);
 return rescCalc.multiplyAndNormalizeDown(capScheduler.getClusterResource(),
   planQueue.getAbsoluteCapacity(), minAllocation);
}

@Override
protected Resource getPlanQueueCapacity(String planQueueName) {
 Resource minAllocation = getMinAllocation();
 ResourceCalculator rescCalc = getResourceCalculator();
 CSQueue planQueue = capScheduler.getQueue(planQueueName);
 return rescCalc.multiplyAndNormalizeDown(capScheduler.getClusterResource(),
   planQueue.getAbsoluteCapacity(), minAllocation);
}