| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| *******************************************************************************/ |
| package org.apache.hadoop.yarn.server.resourcemanager.reservation; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Random; |
| |
| import org.apache.hadoop.yarn.api.records.ReservationDefinition; |
| import org.apache.hadoop.yarn.api.records.ReservationId; |
| import org.apache.hadoop.yarn.api.records.ReservationRequest; |
| import org.apache.hadoop.yarn.api.records.Resource; |
| import org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator; |
| import org.apache.hadoop.yarn.util.resource.ResourceCalculator; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestInMemoryReservationAllocation { |
| |
| private String user = "yarn"; |
| private String planName = "test-reservation"; |
| private ResourceCalculator resCalc; |
| private Resource minAlloc; |
| |
| private Random rand = new Random(); |
| |
| @Before |
| public void setUp() { |
| resCalc = new DefaultResourceCalculator(); |
| minAlloc = Resource.newInstance(1, 1); |
| } |
| |
| @After |
| public void tearDown() { |
| user = null; |
| planName = null; |
| resCalc = null; |
| minAlloc = null; |
| } |
| |
| @Test |
| public void testBlocks() { |
| ReservationId reservationID = |
| ReservationId.newInstance(rand.nextLong(), rand.nextLong()); |
| int[] alloc = { 10, 10, 10, 10, 10, 10 }; |
| int start = 100; |
| ReservationDefinition rDef = |
| ReservationSystemTestUtil.createSimpleReservationDefinition( |
| start, start + alloc.length + 1, |
| alloc.length); |
| Map<ReservationInterval, Resource> allocations = |
| generateAllocation(start, alloc, false, false); |
| ReservationAllocation rAllocation = |
| new InMemoryReservationAllocation(reservationID, rDef, user, planName, |
| start, start + alloc.length + 1, allocations, resCalc, minAlloc); |
| doAssertions(rAllocation, reservationID, rDef, allocations, start, alloc); |
| Assert.assertFalse(rAllocation.containsGangs()); |
| for (int i = 0; i < alloc.length; i++) { |
| Assert.assertEquals(Resource.newInstance(1024 * (alloc[i]), (alloc[i])), |
| rAllocation.getResourcesAtTime(start + i)); |
| } |
| } |
| |
| @Test |
| public void testSteps() { |
| ReservationId reservationID = |
| ReservationId.newInstance(rand.nextLong(), rand.nextLong()); |
| int[] alloc = { 10, 10, 10, 10, 10, 10 }; |
| int start = 100; |
| ReservationDefinition rDef = |
| ReservationSystemTestUtil.createSimpleReservationDefinition( |
| start, start + alloc.length + 1, |
| alloc.length); |
| Map<ReservationInterval, Resource> allocations = |
| generateAllocation(start, alloc, true, false); |
| ReservationAllocation rAllocation = |
| new InMemoryReservationAllocation(reservationID, rDef, user, planName, |
| start, start + alloc.length + 1, allocations, resCalc, minAlloc); |
| doAssertions(rAllocation, reservationID, rDef, allocations, start, alloc); |
| Assert.assertFalse(rAllocation.containsGangs()); |
| for (int i = 0; i < alloc.length; i++) { |
| Assert.assertEquals( |
| Resource.newInstance(1024 * (alloc[i] + i), (alloc[i] + i)), |
| rAllocation.getResourcesAtTime(start + i)); |
| } |
| } |
| |
| @Test |
| public void testSkyline() { |
| ReservationId reservationID = |
| ReservationId.newInstance(rand.nextLong(), rand.nextLong()); |
| int[] alloc = { 0, 5, 10, 10, 5, 0 }; |
| int start = 100; |
| ReservationDefinition rDef = |
| ReservationSystemTestUtil.createSimpleReservationDefinition( |
| start, start + alloc.length + 1, |
| alloc.length); |
| Map<ReservationInterval, Resource> allocations = |
| generateAllocation(start, alloc, true, false); |
| ReservationAllocation rAllocation = |
| new InMemoryReservationAllocation(reservationID, rDef, user, planName, |
| start, start + alloc.length + 1, allocations, resCalc, minAlloc); |
| doAssertions(rAllocation, reservationID, rDef, allocations, start, alloc); |
| Assert.assertFalse(rAllocation.containsGangs()); |
| for (int i = 0; i < alloc.length; i++) { |
| Assert.assertEquals( |
| Resource.newInstance(1024 * (alloc[i] + i), (alloc[i] + i)), |
| rAllocation.getResourcesAtTime(start + i)); |
| } |
| } |
| |
| @Test |
| public void testZeroAlloaction() { |
| ReservationId reservationID = |
| ReservationId.newInstance(rand.nextLong(), rand.nextLong()); |
| int[] alloc = {}; |
| long start = 0; |
| ReservationDefinition rDef = |
| ReservationSystemTestUtil.createSimpleReservationDefinition( |
| start, start + alloc.length + 1, |
| alloc.length); |
| Map<ReservationInterval, Resource> allocations = |
| new HashMap<ReservationInterval, Resource>(); |
| ReservationAllocation rAllocation = |
| new InMemoryReservationAllocation(reservationID, rDef, user, planName, |
| start, start + alloc.length + 1, allocations, resCalc, minAlloc); |
| doAssertions(rAllocation, reservationID, rDef, allocations, (int) start, |
| alloc); |
| Assert.assertFalse(rAllocation.containsGangs()); |
| } |
| |
| @Test |
| public void testGangAlloaction() { |
| ReservationId reservationID = |
| ReservationId.newInstance(rand.nextLong(), rand.nextLong()); |
| int[] alloc = { 10, 10, 10, 10, 10, 10 }; |
| int start = 100; |
| ReservationDefinition rDef = |
| ReservationSystemTestUtil.createSimpleReservationDefinition( |
| start, start + alloc.length + 1, |
| alloc.length); |
| boolean isGang = true; |
| Map<ReservationInterval, Resource> allocations = |
| generateAllocation(start, alloc, false, isGang); |
| ReservationAllocation rAllocation = |
| new InMemoryReservationAllocation(reservationID, rDef, user, planName, |
| start, start + alloc.length + 1, allocations, resCalc, minAlloc, |
| isGang); |
| doAssertions(rAllocation, reservationID, rDef, allocations, start, alloc); |
| Assert.assertTrue(rAllocation.containsGangs()); |
| for (int i = 0; i < alloc.length; i++) { |
| Assert.assertEquals(Resource.newInstance(1024 * (alloc[i]), (alloc[i])), |
| rAllocation.getResourcesAtTime(start + i)); |
| } |
| } |
| |
| private void doAssertions(ReservationAllocation rAllocation, |
| ReservationId reservationID, ReservationDefinition rDef, |
| Map<ReservationInterval, Resource> allocations, int start, |
| int[] alloc) { |
| Assert.assertEquals(reservationID, rAllocation.getReservationId()); |
| Assert.assertEquals(rDef, rAllocation.getReservationDefinition()); |
| Assert.assertEquals(allocations, rAllocation.getAllocationRequests()); |
| Assert.assertEquals(user, rAllocation.getUser()); |
| Assert.assertEquals(planName, rAllocation.getPlanName()); |
| Assert.assertEquals(start, rAllocation.getStartTime()); |
| Assert.assertEquals(start + alloc.length + 1, rAllocation.getEndTime()); |
| } |
| |
| private Map<ReservationInterval, Resource> generateAllocation( |
| int startTime, int[] alloc, boolean isStep, boolean isGang) { |
| Map<ReservationInterval, Resource> req = |
| new HashMap<ReservationInterval, Resource>(); |
| int numContainers = 0; |
| for (int i = 0; i < alloc.length; i++) { |
| if (isStep) { |
| numContainers = alloc[i] + i; |
| } else { |
| numContainers = alloc[i]; |
| } |
| ReservationRequest rr = |
| ReservationRequest.newInstance(Resource.newInstance(1024, 1), |
| (numContainers)); |
| if (isGang) { |
| rr.setConcurrency(numContainers); |
| } |
| req.put(new ReservationInterval(startTime + i, startTime + i + 1), |
| ReservationSystemUtil.toResource(rr)); |
| } |
| return req; |
| } |
| |
| } |