| /** |
| * 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.scheduler; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.apache.hadoop.yarn.api.records.Resource; |
| import org.apache.hadoop.yarn.api.records.ResourceRequest; |
| import org.apache.hadoop.yarn.api.records.impl.pb.ResourceRequestPBImpl; |
| import org.apache.hadoop.yarn.server.resourcemanager.resource.DefaultResourceCalculator; |
| import org.apache.hadoop.yarn.server.resourcemanager.resource.DominantResourceCalculator; |
| import org.apache.hadoop.yarn.server.resourcemanager.resource.ResourceCalculator; |
| import org.apache.hadoop.yarn.server.resourcemanager.resource.Resources; |
| import org.junit.Test; |
| |
| public class TestSchedulerUtils { |
| |
| @Test |
| public void testNormalizeRequest() { |
| ResourceCalculator resourceCalculator = new DefaultResourceCalculator(); |
| |
| final int minMemory = 1024; |
| Resource minResource = Resources.createResource(minMemory, 0); |
| |
| ResourceRequest ask = new ResourceRequestPBImpl(); |
| |
| // case negative memory |
| ask.setCapability(Resources.createResource(-1024)); |
| Resource before = ask.getCapability(); |
| SchedulerUtils.normalizeRequest(ask, resourceCalculator, null, minResource); |
| Resource after = ask.getCapability(); |
| assertEquals(minMemory, ask.getCapability().getMemory()); |
| assertTrue(before == after); |
| |
| // case zero memory |
| ask.setCapability(Resources.createResource(0)); |
| before = ask.getCapability(); |
| SchedulerUtils.normalizeRequest(ask, resourceCalculator, null, minResource); |
| after = ask.getCapability(); |
| assertEquals(minMemory, ask.getCapability().getMemory()); |
| assertTrue(before == after); |
| |
| // case memory is a multiple of minMemory |
| ask.setCapability(Resources.createResource(2 * minMemory)); |
| before = ask.getCapability(); |
| SchedulerUtils.normalizeRequest(ask, resourceCalculator, null, minResource); |
| after = ask.getCapability(); |
| assertEquals(2 * minMemory, ask.getCapability().getMemory()); |
| assertTrue(before == after); |
| |
| // case memory is not a multiple of minMemory |
| ask.setCapability(Resources.createResource(minMemory + 10)); |
| before = ask.getCapability(); |
| SchedulerUtils.normalizeRequest(ask, resourceCalculator, null, minResource); |
| after = ask.getCapability(); |
| assertEquals(2 * minMemory, ask.getCapability().getMemory()); |
| assertTrue(before == after); |
| |
| } |
| |
| @Test |
| public void testNormalizeRequestWithDominantResourceCalculator() { |
| ResourceCalculator resourceCalculator = new DominantResourceCalculator(); |
| |
| Resource minResource = Resources.createResource(1024, 1); |
| Resource clusterResource = Resources.createResource(10 * 1024, 10); |
| |
| ResourceRequest ask = new ResourceRequestPBImpl(); |
| |
| // case negative memory/vcores |
| ask.setCapability(Resources.createResource(-1024, -1)); |
| Resource before = ask.getCapability(); |
| SchedulerUtils.normalizeRequest( |
| ask, resourceCalculator, clusterResource, minResource); |
| Resource after = ask.getCapability(); |
| assertEquals(minResource, ask.getCapability()); |
| assertTrue(before == after); |
| |
| // case zero memory/vcores |
| ask.setCapability(Resources.createResource(0, 0)); |
| before = ask.getCapability(); |
| SchedulerUtils.normalizeRequest( |
| ask, resourceCalculator, clusterResource, minResource); |
| after = ask.getCapability(); |
| assertEquals(minResource, ask.getCapability()); |
| assertEquals(1, ask.getCapability().getVirtualCores()); |
| assertEquals(1024, ask.getCapability().getMemory()); |
| assertTrue(before == after); |
| |
| // case non-zero memory & zero cores |
| ask.setCapability(Resources.createResource(1536, 0)); |
| before = ask.getCapability(); |
| SchedulerUtils.normalizeRequest( |
| ask, resourceCalculator, clusterResource, minResource); |
| after = ask.getCapability(); |
| assertEquals(Resources.createResource(2048, 1), ask.getCapability()); |
| assertEquals(1, ask.getCapability().getVirtualCores()); |
| assertEquals(2048, ask.getCapability().getMemory()); |
| assertTrue(before == after); |
| } |
| } |