TestNMSimulator.java
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* 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,
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package org.apache.hadoop.yarn.sls.nodemanager;
import java.util.function.Supplier;
import org.apache.hadoop.test.GenericTestUtils;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler;
import org.apache.hadoop.yarn.server.utils.BuilderUtils;
import org.apache.hadoop.yarn.sls.conf.SLSConfiguration;
import org.apache.hadoop.yarn.sls.scheduler.SLSCapacityScheduler;
import org.apache.hadoop.yarn.sls.scheduler.SLSFairScheduler;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.util.Arrays;
import java.util.Collection;
@RunWith(Parameterized.class)
public class TestNMSimulator {
private final int GB = 1024;
private ResourceManager rm;
private YarnConfiguration conf;
private Class slsScheduler;
private Class scheduler;
@Parameterized.Parameters
public static Collection<Object[]> params() {
return Arrays.asList(new Object[][] {
{SLSFairScheduler.class, FairScheduler.class},
{SLSCapacityScheduler.class, CapacityScheduler.class}
});
}
public TestNMSimulator(Class slsScheduler, Class scheduler) {
this.slsScheduler = slsScheduler;
this.scheduler = scheduler;
}
@Before
public void setup() {
conf = new YarnConfiguration();
conf.set(YarnConfiguration.RM_SCHEDULER, slsScheduler.getName());
conf.set(SLSConfiguration.RM_SCHEDULER, scheduler.getName());
conf.setBoolean(SLSConfiguration.METRICS_SWITCH, false);
rm = new ResourceManager();
rm.init(conf);
rm.start();
}
@Test
public void testNMSimulator() throws Exception {
// Register one node
NMSimulator node1 = new NMSimulator();
node1.init("/rack1/node1", Resources.createResource(GB * 10, 10), 0, 1000,
rm, -1f);
node1.middleStep();
int numClusterNodes = rm.getResourceScheduler().getNumClusterNodes();
int cumulativeSleepTime = 0;
int sleepInterval = 100;
while(numClusterNodes != 1 && cumulativeSleepTime < 5000) {
Thread.sleep(sleepInterval);
cumulativeSleepTime = cumulativeSleepTime + sleepInterval;
numClusterNodes = rm.getResourceScheduler().getNumClusterNodes();
}
GenericTestUtils.waitFor(new Supplier<Boolean>() {
@Override public Boolean get() {
return rm.getResourceScheduler().getRootQueueMetrics()
.getAvailableMB() > 0;
}
}, 500, 10000);
Assert.assertEquals(1, rm.getResourceScheduler().getNumClusterNodes());
Assert.assertEquals(GB * 10,
rm.getResourceScheduler().getRootQueueMetrics().getAvailableMB());
Assert.assertEquals(10,
rm.getResourceScheduler().getRootQueueMetrics()
.getAvailableVirtualCores());
// Allocate one container on node1
ContainerId cId1 = newContainerId(1, 1, 1);
Container container1 = Container.newInstance(cId1, null, null,
Resources.createResource(GB, 1), null, null);
node1.addNewContainer(container1, 100000l, null);
Assert.assertTrue("Node1 should have one running container.",
node1.getRunningContainers().containsKey(cId1));
// Allocate one AM container on node1
ContainerId cId2 = newContainerId(2, 1, 1);
Container container2 = Container.newInstance(cId2, null, null,
Resources.createResource(GB, 1), null, null);
node1.addNewContainer(container2, -1l, null);
Assert.assertTrue("Node1 should have one running AM container",
node1.getAMContainers().contains(cId2));
// Remove containers
node1.cleanupContainer(cId1);
Assert.assertTrue("Container1 should be removed from Node1.",
node1.getCompletedContainers().contains(cId1));
node1.cleanupContainer(cId2);
Assert.assertFalse("Container2 should be removed from Node1.",
node1.getAMContainers().contains(cId2));
}
private ContainerId newContainerId(int appId, int appAttemptId, int cId) {
return BuilderUtils.newContainerId(
BuilderUtils.newApplicationAttemptId(
BuilderUtils.newApplicationId(System.currentTimeMillis(), appId),
appAttemptId), cId);
}
@Test
public void testNMSimAppAddedAndRemoved() throws Exception {
// Register one node
NMSimulator node = new NMSimulator();
node.init("/rack1/node1", Resources.createResource(GB * 10, 10), 0, 1000,
rm, -1f);
node.middleStep();
int numClusterNodes = rm.getResourceScheduler().getNumClusterNodes();
int cumulativeSleepTime = 0;
int sleepInterval = 100;
while (numClusterNodes != 1 && cumulativeSleepTime < 5000) {
Thread.sleep(sleepInterval);
cumulativeSleepTime = cumulativeSleepTime + sleepInterval;
numClusterNodes = rm.getResourceScheduler().getNumClusterNodes();
}
GenericTestUtils.waitFor(() ->
rm.getResourceScheduler().getRootQueueMetrics()
.getAvailableMB() > 0,
500, 10000);
Assert.assertEquals("Node should have no runningApps.",
node.getNode().getRunningApps().size(), 0);
// Allocate one app container on node
ApplicationId appId = BuilderUtils.newApplicationId(1, 1);
ApplicationAttemptId appAttemptId =
BuilderUtils.newApplicationAttemptId(appId, 1);
ContainerId cId = BuilderUtils.newContainerId(appAttemptId, 1);
Container container = Container.newInstance(cId, null, null,
Resources.createResource(GB, 1), null, null);
node.addNewContainer(container, 100000l, appId);
Assert.assertTrue("Node should have app: "
+ appId + " in runningApps list.",
node.getNode().getRunningApps().contains(appId));
// Finish the app on the node.
node.finishApplication(appId);
Assert.assertFalse("Node should not have app: "
+ appId + " in runningApps list.",
node.getNode().getRunningApps().contains(appId));
Assert.assertEquals("Node should have no runningApps.",
node.getNode().getRunningApps().size(), 0);
}
@Test
public void testNMSimNullAppAddedAndRemoved() throws Exception {
// Register one node
NMSimulator node = new NMSimulator();
node.init("/rack1/node1", Resources.createResource(GB * 10, 10), 0, 1000,
rm, -1f);
node.middleStep();
int numClusterNodes = rm.getResourceScheduler().getNumClusterNodes();
int cumulativeSleepTime = 0;
int sleepInterval = 100;
while (numClusterNodes != 1 && cumulativeSleepTime < 5000) {
Thread.sleep(sleepInterval);
cumulativeSleepTime = cumulativeSleepTime + sleepInterval;
numClusterNodes = rm.getResourceScheduler().getNumClusterNodes();
}
GenericTestUtils.waitFor(() ->
rm.getResourceScheduler().getRootQueueMetrics()
.getAvailableMB() > 0,
500, 10000);
Assert.assertEquals("Node should have no runningApps.",
node.getNode().getRunningApps().size(), 0);
// Allocate null app container on node
ContainerId cId = newContainerId(1, 1, 1);
Container container = Container.newInstance(cId, null, null,
Resources.createResource(GB, 1), null, null);
node.addNewContainer(container, 100000l, null);
Assert.assertEquals("Node should have no runningApps if appId is null.",
node.getNode().getRunningApps().size(), 0);
// Finish non-existent app on the node.
ApplicationId appId = BuilderUtils.newApplicationId(1, 1);
node.finishApplication(appId);
Assert.assertEquals("Node should have no runningApps.",
node.getNode().getRunningApps().size(), 0);
}
@After
public void tearDown() throws Exception {
rm.stop();
}
}