Java tutorial
/** * 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.tez.dag.app.rm; import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertEquals; import static org.mockito.Matchers.any; import static org.mockito.Matchers.eq; import static org.mockito.Mockito.doReturn; import static org.mockito.Mockito.doAnswer; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.spy; import static org.mockito.Mockito.times; import static org.mockito.Mockito.verify; import java.io.IOException; import java.util.Collections; import java.util.HashMap; import java.util.Map; import java.util.Set; import java.util.concurrent.ExecutionException; import java.util.concurrent.atomic.AtomicBoolean; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.security.Credentials; 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.api.records.FinalApplicationStatus; import org.apache.hadoop.yarn.api.records.LocalResource; import org.apache.hadoop.yarn.api.records.NodeId; import org.apache.hadoop.yarn.api.records.Priority; import org.apache.hadoop.yarn.api.records.Resource; import org.apache.hadoop.yarn.client.api.AMRMClient; import org.apache.hadoop.yarn.conf.YarnConfiguration; import org.apache.hadoop.yarn.util.RackResolver; import org.apache.tez.common.MockDNSToSwitchMapping; import org.apache.tez.dag.api.InputDescriptor; import org.apache.tez.dag.api.OutputDescriptor; import org.apache.tez.dag.api.ProcessorDescriptor; import org.apache.tez.dag.api.TezConfiguration; import org.apache.tez.dag.api.TaskLocationHint; import org.apache.tez.dag.api.oldrecords.TaskAttemptState; import org.apache.tez.dag.app.AppContext; import org.apache.tez.dag.app.ClusterInfo; import org.apache.tez.dag.app.ContainerContext; import org.apache.tez.dag.app.ContainerHeartbeatHandler; import org.apache.tez.dag.app.DAGAppMasterState; import org.apache.tez.dag.app.TaskAttemptListener; import org.apache.tez.dag.app.dag.TaskAttempt; import org.apache.tez.dag.app.rm.TaskSchedulerService.TaskSchedulerAppCallback; import org.apache.tez.dag.app.rm.TaskSchedulerService.TaskSchedulerAppCallback.AppFinalStatus; import org.apache.tez.dag.app.rm.YarnTaskSchedulerService.CookieContainerRequest; import org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.AMRMClientAsyncForTest; import org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.AMRMClientForTest; import org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.AlwaysMatchesContainerMatcher; import org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.CapturingEventHandler; import org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.TaskSchedulerAppCallbackDrainable; import org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.TaskSchedulerEventHandlerForTest; import org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.TaskSchedulerWithDrainableAppCallback; import org.apache.tez.dag.app.rm.container.AMContainerEventAssignTA; import org.apache.tez.dag.app.rm.container.AMContainerEventStopRequest; import org.apache.tez.dag.app.rm.container.AMContainerMap; import org.apache.tez.dag.app.rm.container.ContainerContextMatcher; import org.apache.tez.dag.app.rm.node.AMNodeTracker; import org.apache.tez.dag.records.TezDAGID; import org.apache.tez.dag.records.TezTaskAttemptID; import org.apache.tez.dag.records.TezTaskID; import org.apache.tez.dag.records.TezVertexID; import org.apache.tez.dag.utils.TaskSpecificLaunchCmdOption; import org.apache.tez.runtime.api.impl.InputSpec; import org.apache.tez.runtime.api.impl.OutputSpec; import org.apache.tez.runtime.api.impl.TaskSpec; import org.junit.BeforeClass; import org.junit.Test; import org.mockito.invocation.InvocationOnMock; import org.mockito.stubbing.Answer; import com.google.common.collect.Lists; import com.google.common.collect.Maps; import com.google.common.collect.Sets; public class TestContainerReuse { private static final Log LOG = LogFactory.getLog(TestContainerReuse.class); @BeforeClass public static void setup() { MockDNSToSwitchMapping.initializeMockRackResolver(); } @Test(timeout = 15000l) public void testDelayedReuseContainerBecomesAvailable() throws IOException, InterruptedException, ExecutionException { Configuration conf = new Configuration(new YarnConfiguration()); conf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_ENABLED, true); conf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED, false); conf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED, false); conf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 3000l); conf.setLong(TezConfiguration.TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS, 0); TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class); CapturingEventHandler eventHandler = new CapturingEventHandler(); TezDAGID dagID = TezDAGID.getInstance("0", 0, 0); TezVertexID vertexID = TezVertexID.getInstance(dagID, 1); AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest(); TezAMRMClientAsync<CookieContainerRequest> rmClient = spy(new AMRMClientAsyncForTest(rmClientCore, 100)); String appUrl = "url"; String appMsg = "success"; AppFinalStatus finalStatus = new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl); doReturn(finalStatus).when(mockApp).getFinalAppStatus(); AppContext appContext = mock(AppContext.class); doReturn(conf).when(appContext).getAMConf(); AMContainerMap amContainerMap = new AMContainerMap(mock(ContainerHeartbeatHandler.class), mock(TaskAttemptListener.class), new ContainerContextMatcher(), appContext); AMNodeTracker amNodeTracker = new AMNodeTracker(eventHandler, appContext); doReturn(amContainerMap).when(appContext).getAllContainers(); doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState(); doReturn(amNodeTracker).when(appContext).getNodeTracker(); doReturn(dagID).when(appContext).getCurrentDAGID(); doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo(); TaskSchedulerEventHandler taskSchedulerEventHandlerReal = new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient, new AlwaysMatchesContainerMatcher()); TaskSchedulerEventHandler taskSchedulerEventHandler = spy(taskSchedulerEventHandlerReal); taskSchedulerEventHandler.init(conf); taskSchedulerEventHandler.start(); TaskSchedulerWithDrainableAppCallback taskScheduler = (TaskSchedulerWithDrainableAppCallback) ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler) .getSpyTaskScheduler(); TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback(); AtomicBoolean drainNotifier = new AtomicBoolean(false); taskScheduler.delayedContainerManager.drainedDelayedContainersForTest = drainNotifier; Resource resource = Resource.newInstance(1024, 1); Priority priority = Priority.newInstance(5); String[] host1 = { "host1" }; String[] host2 = { "host2" }; String[] defaultRack = { "/default-rack" }; TezTaskAttemptID taID11 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 1), 1); TezTaskAttemptID taID21 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 2), 1); TezTaskAttemptID taID31 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 3), 1); TaskAttempt ta11 = mock(TaskAttempt.class); TaskAttempt ta21 = mock(TaskAttempt.class); TaskAttempt ta31 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrTa11 = createLaunchRequestEvent(taID11, ta11, resource, host1, defaultRack, priority); AMSchedulerEventTALaunchRequest lrTa21 = createLaunchRequestEvent(taID21, ta21, resource, host2, defaultRack, priority); AMSchedulerEventTALaunchRequest lrTa31 = createLaunchRequestEvent(taID31, ta31, resource, host1, defaultRack, priority); taskSchedulerEventHandler.handleEvent(lrTa11); taskSchedulerEventHandler.handleEvent(lrTa21); Container containerHost1 = createContainer(1, host1[0], resource, priority); Container containerHost2 = createContainer(2, host2[0], resource, priority); drainNotifier.set(false); taskScheduler.onContainersAllocated(Lists.newArrayList(containerHost1, containerHost2)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta11), any(Object.class), eq(containerHost1)); verify(taskSchedulerEventHandler).taskAllocated(eq(ta21), any(Object.class), eq(containerHost2)); // Adding the event later so that task1 assigned to containerHost1 // is deterministic. taskSchedulerEventHandler.handleEvent(lrTa31); taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta11, containerHost1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta11), eq(true)); verify(taskSchedulerEventHandler, times(1)).taskAllocated(eq(ta31), any(Object.class), eq(containerHost1)); verify(rmClient, times(0)).releaseAssignedContainer(eq(containerHost1.getId())); eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class); eventHandler.reset(); taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta21, containerHost2.getId(), TaskAttemptState.SUCCEEDED)); long currentTs = System.currentTimeMillis(); Throwable exception = null; while (System.currentTimeMillis() < currentTs + 5000l) { try { verify(taskSchedulerEventHandler, times(1)).containerBeingReleased(eq(containerHost2.getId())); exception = null; break; } catch (Throwable e) { exception = e; } } assertTrue("containerHost2 was not released", exception == null); taskScheduler.stop(); taskScheduler.close(); taskSchedulerEventHandler.close(); } @Test(timeout = 15000l) public void testDelayedReuseContainerNotAvailable() throws IOException, InterruptedException, ExecutionException { Configuration conf = new Configuration(new YarnConfiguration()); conf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_ENABLED, true); conf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED, false); conf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED, false); conf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 1000l); conf.setLong(TezConfiguration.TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS, 0); TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class); CapturingEventHandler eventHandler = new CapturingEventHandler(); TezDAGID dagID = TezDAGID.getInstance("0", 0, 0); TezVertexID vertexID = TezVertexID.getInstance(dagID, 1); AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest(); TezAMRMClientAsync<CookieContainerRequest> rmClient = spy(new AMRMClientAsyncForTest(rmClientCore, 100)); String appUrl = "url"; String appMsg = "success"; AppFinalStatus finalStatus = new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl); doReturn(finalStatus).when(mockApp).getFinalAppStatus(); AppContext appContext = mock(AppContext.class); doReturn(new Configuration(false)).when(appContext).getAMConf(); AMContainerMap amContainerMap = new AMContainerMap(mock(ContainerHeartbeatHandler.class), mock(TaskAttemptListener.class), new ContainerContextMatcher(), appContext); AMNodeTracker amNodeTracker = new AMNodeTracker(eventHandler, appContext); doReturn(amContainerMap).when(appContext).getAllContainers(); doReturn(amNodeTracker).when(appContext).getNodeTracker(); doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState(); doReturn(dagID).when(appContext).getCurrentDAGID(); doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo(); TaskSchedulerEventHandler taskSchedulerEventHandlerReal = new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient, new AlwaysMatchesContainerMatcher()); TaskSchedulerEventHandler taskSchedulerEventHandler = spy(taskSchedulerEventHandlerReal); taskSchedulerEventHandler.init(conf); taskSchedulerEventHandler.start(); TaskSchedulerWithDrainableAppCallback taskScheduler = (TaskSchedulerWithDrainableAppCallback) ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler) .getSpyTaskScheduler(); TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback(); AtomicBoolean drainNotifier = new AtomicBoolean(false); taskScheduler.delayedContainerManager.drainedDelayedContainersForTest = drainNotifier; Resource resource = Resource.newInstance(1024, 1); Priority priority = Priority.newInstance(5); String[] host1 = { "host1" }; String[] host2 = { "host2" }; String[] defaultRack = { "/default-rack" }; TezTaskAttemptID taID11 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 1), 1); TezTaskAttemptID taID21 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 2), 1); TezTaskAttemptID taID31 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 3), 1); TaskAttempt ta11 = mock(TaskAttempt.class); TaskAttempt ta21 = mock(TaskAttempt.class); TaskAttempt ta31 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrTa11 = createLaunchRequestEvent(taID11, ta11, resource, host1, defaultRack, priority); AMSchedulerEventTALaunchRequest lrTa21 = createLaunchRequestEvent(taID21, ta21, resource, host2, defaultRack, priority); AMSchedulerEventTALaunchRequest lrTa31 = createLaunchRequestEvent(taID31, ta31, resource, host1, defaultRack, priority); taskSchedulerEventHandler.handleEvent(lrTa11); taskSchedulerEventHandler.handleEvent(lrTa21); Container containerHost1 = createContainer(1, host1[0], resource, priority); Container containerHost2 = createContainer(2, host2[0], resource, priority); drainNotifier.set(false); taskScheduler.onContainersAllocated(Lists.newArrayList(containerHost1, containerHost2)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta11), any(Object.class), eq(containerHost1)); verify(taskSchedulerEventHandler).taskAllocated(eq(ta21), any(Object.class), eq(containerHost2)); // Adding the event later so that task1 assigned to containerHost1 is deterministic. taskSchedulerEventHandler.handleEvent(lrTa31); taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta21, containerHost2.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta21), eq(true)); verify(taskSchedulerEventHandler, times(0)).taskAllocated(eq(ta31), any(Object.class), eq(containerHost2)); verify(rmClient, times(1)).releaseAssignedContainer(eq(containerHost2.getId())); eventHandler.verifyInvocation(AMContainerEventStopRequest.class); taskScheduler.stop(); taskScheduler.close(); taskSchedulerEventHandler.close(); } @Test(timeout = 10000l) public void testSimpleReuse() throws IOException, InterruptedException, ExecutionException { Configuration tezConf = new Configuration(new YarnConfiguration()); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_ENABLED, true); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED, true); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 0); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS, 0); TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class); CapturingEventHandler eventHandler = new CapturingEventHandler(); TezDAGID dagID = TezDAGID.getInstance("0", 0, 0); AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest(); TezAMRMClientAsync<CookieContainerRequest> rmClient = spy(new AMRMClientAsyncForTest(rmClientCore, 100)); String appUrl = "url"; String appMsg = "success"; AppFinalStatus finalStatus = new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl); doReturn(finalStatus).when(mockApp).getFinalAppStatus(); AppContext appContext = mock(AppContext.class); doReturn(new Configuration(false)).when(appContext).getAMConf(); AMContainerMap amContainerMap = new AMContainerMap(mock(ContainerHeartbeatHandler.class), mock(TaskAttemptListener.class), new ContainerContextMatcher(), appContext); AMNodeTracker amNodeTracker = new AMNodeTracker(eventHandler, appContext); doReturn(amContainerMap).when(appContext).getAllContainers(); doReturn(amNodeTracker).when(appContext).getNodeTracker(); doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState(); doReturn(dagID).when(appContext).getCurrentDAGID(); doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo(); TaskSchedulerEventHandler taskSchedulerEventHandlerReal = new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient, new AlwaysMatchesContainerMatcher()); TaskSchedulerEventHandler taskSchedulerEventHandler = spy(taskSchedulerEventHandlerReal); taskSchedulerEventHandler.init(tezConf); taskSchedulerEventHandler.start(); TaskSchedulerWithDrainableAppCallback taskScheduler = (TaskSchedulerWithDrainableAppCallback) ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler) .getSpyTaskScheduler(); TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback(); AtomicBoolean drainNotifier = new AtomicBoolean(false); taskScheduler.delayedContainerManager.drainedDelayedContainersForTest = drainNotifier; Resource resource1 = Resource.newInstance(1024, 1); String[] host1 = { "host1" }; String[] host2 = { "host2" }; String[] racks = { "/default-rack" }; Priority priority1 = Priority.newInstance(1); TezVertexID vertexID1 = TezVertexID.getInstance(dagID, 1); //Vertex 1, Task 1, Attempt 1, host1 TezTaskAttemptID taID11 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 1), 1); TaskAttempt ta11 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent1 = createLaunchRequestEvent(taID11, ta11, resource1, host1, racks, priority1); //Vertex 1, Task 2, Attempt 1, host1 TezTaskAttemptID taID12 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 2), 1); TaskAttempt ta12 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent2 = createLaunchRequestEvent(taID12, ta12, resource1, host1, racks, priority1); //Vertex 1, Task 3, Attempt 1, host2 TezTaskAttemptID taID13 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 3), 1); TaskAttempt ta13 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent3 = createLaunchRequestEvent(taID13, ta13, resource1, host2, racks, priority1); //Vertex 1, Task 4, Attempt 1, host2 TezTaskAttemptID taID14 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 4), 1); TaskAttempt ta14 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent4 = createLaunchRequestEvent(taID14, ta14, resource1, host2, racks, priority1); taskSchedulerEventHandler.handleEvent(lrEvent1); taskSchedulerEventHandler.handleEvent(lrEvent2); taskSchedulerEventHandler.handleEvent(lrEvent3); taskSchedulerEventHandler.handleEvent(lrEvent4); Container container1 = createContainer(1, "host1", resource1, priority1); // One container allocated. drainNotifier.set(false); taskScheduler.onContainersAllocated(Collections.singletonList(container1)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta11), any(Object.class), eq(container1)); // Task assigned to container completed successfully. Container should be re-used. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta11, container1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta11), eq(true)); verify(taskSchedulerEventHandler).taskAllocated(eq(ta12), any(Object.class), eq(container1)); verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class); eventHandler.reset(); // Task assigned to container completed successfully. // Verify reuse across hosts. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta12, container1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta12), eq(true)); verify(taskSchedulerEventHandler).taskAllocated(eq(ta13), any(Object.class), eq(container1)); verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class); eventHandler.reset(); // Verify no re-use if a previous task fails. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta13, container1.getId(), TaskAttemptState.FAILED)); drainableAppCallback.drain(); verify(taskSchedulerEventHandler, times(0)).taskAllocated(eq(ta14), any(Object.class), eq(container1)); verify(taskScheduler).deallocateTask(eq(ta13), eq(false)); verify(rmClient).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyInvocation(AMContainerEventStopRequest.class); eventHandler.reset(); Container container2 = createContainer(2, "host2", resource1, priority1); // Second container allocated. Should be allocated to the last task. drainNotifier.set(false); taskScheduler.onContainersAllocated(Collections.singletonList(container2)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta14), any(Object.class), eq(container2)); // Task assigned to container completed successfully. No pending requests. Container should be released. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta14, container2.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta14), eq(true)); verify(rmClient).releaseAssignedContainer(eq(container2.getId())); eventHandler.verifyInvocation(AMContainerEventStopRequest.class); eventHandler.reset(); taskScheduler.close(); taskSchedulerEventHandler.close(); } @Test(timeout = 10000l) public void testReuseWithTaskSpecificLaunchCmdOption() throws IOException, InterruptedException, ExecutionException { Configuration tezConf = new Configuration(new YarnConfiguration()); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_ENABLED, true); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED, true); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 0); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS, 0); //Profile 3 tasks tezConf.set(TezConfiguration.TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS_LIST, "v1[1,3,4]"); tezConf.set(TezConfiguration.TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS, "dir=/tmp/__VERTEX_NAME__/__TASK_INDEX__"); TaskSpecificLaunchCmdOption taskSpecificLaunchCmdOption = new TaskSpecificLaunchCmdOption(tezConf); TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class); CapturingEventHandler eventHandler = new CapturingEventHandler(); TezDAGID dagID = TezDAGID.getInstance("0", 0, 0); AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest(); TezAMRMClientAsync<CookieContainerRequest> rmClient = spy(new AMRMClientAsyncForTest(rmClientCore, 100)); String appUrl = "url"; String appMsg = "success"; AppFinalStatus finalStatus = new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl); doReturn(finalStatus).when(mockApp).getFinalAppStatus(); AppContext appContext = mock(AppContext.class); doReturn(new Configuration(false)).when(appContext).getAMConf(); AMContainerMap amContainerMap = new AMContainerMap(mock(ContainerHeartbeatHandler.class), mock(TaskAttemptListener.class), new ContainerContextMatcher(), appContext); AMNodeTracker amNodeTracker = new AMNodeTracker(eventHandler, appContext); doReturn(amContainerMap).when(appContext).getAllContainers(); doReturn(amNodeTracker).when(appContext).getNodeTracker(); doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState(); doReturn(dagID).when(appContext).getCurrentDAGID(); doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo(); //Use ContainerContextMatcher here. Otherwise it would not match the JVM options TaskSchedulerEventHandler taskSchedulerEventHandlerReal = new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient, new ContainerContextMatcher()); TaskSchedulerEventHandler taskSchedulerEventHandler = spy(taskSchedulerEventHandlerReal); taskSchedulerEventHandler.init(tezConf); taskSchedulerEventHandler.start(); TaskSchedulerWithDrainableAppCallback taskScheduler = (TaskSchedulerWithDrainableAppCallback) ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler) .getSpyTaskScheduler(); TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback(); AtomicBoolean drainNotifier = new AtomicBoolean(false); taskScheduler.delayedContainerManager.drainedDelayedContainersForTest = drainNotifier; Resource resource1 = Resource.newInstance(1024, 1); String[] host1 = { "host1" }; String[] host2 = { "host2" }; String[] host3 = { "host3" }; String[] racks = { "/default-rack" }; Priority priority1 = Priority.newInstance(1); TezVertexID vertexID1 = TezVertexID.getInstance(dagID, 1); Map<String, LocalResource> localResources = new HashMap<String, LocalResource>(); String tsLaunchCmdOpts = taskSpecificLaunchCmdOption.getTaskSpecificOption("", "v1", 1); /** * Schedule 2 tasks (1 with additional launch-cmd option and another in normal mode). * Container should not be reused in this case. */ //Vertex 1, Task 1, Attempt 1, host1 TezTaskAttemptID taID11 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 1), 1); TaskAttempt ta11 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent1 = createLaunchRequestEvent(taID11, ta11, resource1, host1, racks, priority1, localResources, tsLaunchCmdOpts); //Vertex 1, Task 2, Attempt 1, host1 TezTaskAttemptID taID12 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 2), 1); TaskAttempt ta12 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent2 = createLaunchRequestEvent(taID12, ta12, resource1, host1, racks, priority1); taskSchedulerEventHandler.handleEvent(lrEvent1); taskSchedulerEventHandler.handleEvent(lrEvent2); Container container1 = createContainer(1, "host1", resource1, priority1); // One container allocated. drainNotifier.set(false); taskScheduler.onContainersAllocated(Collections.singletonList(container1)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta11), any(Object.class), eq(container1)); // First task had profiling on. This container can not be reused further. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta11, container1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta11), eq(true)); verify(taskSchedulerEventHandler, times(0)).taskAllocated(eq(ta12), any(Object.class), eq(container1)); verify(rmClient, times(1)).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyInvocation(AMContainerEventStopRequest.class); eventHandler.reset(); /** * Schedule 2 tasks (both having different task specific JVM option). * Container should not be reused. */ //Vertex 1, Task 3, Attempt 1, host2 tsLaunchCmdOpts = taskSpecificLaunchCmdOption.getTaskSpecificOption("", "v1", 3); TezTaskAttemptID taID13 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 3), 1); TaskAttempt ta13 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent3 = createLaunchRequestEvent(taID13, ta13, resource1, host2, racks, priority1, localResources, tsLaunchCmdOpts); //Vertex 1, Task 4, Attempt 1, host2 tsLaunchCmdOpts = taskSpecificLaunchCmdOption.getTaskSpecificOption("", "v1", 4); TezTaskAttemptID taID14 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 4), 1); TaskAttempt ta14 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent4 = createLaunchRequestEvent(taID14, ta14, resource1, host2, racks, priority1, localResources, tsLaunchCmdOpts); Container container2 = createContainer(2, "host2", resource1, priority1); taskSchedulerEventHandler.handleEvent(lrEvent3); taskSchedulerEventHandler.handleEvent(lrEvent4); // Container started drainNotifier.set(false); taskScheduler.onContainersAllocated(Collections.singletonList(container2)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta13), any(Object.class), eq(container2)); // Verify that the container can not be reused when profiling option is turned on // Even for 2 tasks having same profiling option can have container reusability. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta13, container2.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta13), eq(true)); verify(taskSchedulerEventHandler, times(0)).taskAllocated(eq(ta14), any(Object.class), eq(container2)); verify(rmClient, times(1)).releaseAssignedContainer(eq(container2.getId())); eventHandler.verifyInvocation(AMContainerEventStopRequest.class); eventHandler.reset(); /** * Schedule 2 tasks with same jvm profiling option. * Container should be reused. */ tezConf.set(TezConfiguration.TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS_LIST, "v1[1,2,3,5,6]"); tezConf.set(TezConfiguration.TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS, "dummyOpts"); taskSpecificLaunchCmdOption = new TaskSpecificLaunchCmdOption(tezConf); //Vertex 1, Task 5, Attempt 1, host3 TezTaskAttemptID taID15 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 3), 1); TaskAttempt ta15 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent5 = createLaunchRequestEvent(taID15, ta15, resource1, host3, racks, priority1, localResources, taskSpecificLaunchCmdOption.getTaskSpecificOption("", "v1", 5)); //Vertex 1, Task 6, Attempt 1, host3 tsLaunchCmdOpts = taskSpecificLaunchCmdOption.getTaskSpecificOption("", "v1", 4); TezTaskAttemptID taID16 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 4), 1); TaskAttempt ta16 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent6 = createLaunchRequestEvent(taID16, ta16, resource1, host3, racks, priority1, localResources, taskSpecificLaunchCmdOption.getTaskSpecificOption("", "v1", 6)); // Container started Container container3 = createContainer(2, "host3", resource1, priority1); taskSchedulerEventHandler.handleEvent(lrEvent5); taskSchedulerEventHandler.handleEvent(lrEvent6); drainNotifier.set(false); taskScheduler.onContainersAllocated(Collections.singletonList(container3)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta15), any(Object.class), eq(container3)); //Ensure task 6 (of vertex 1) is allocated to same container taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta15, container3.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta15), eq(true)); verify(taskSchedulerEventHandler).taskAllocated(eq(ta16), any(Object.class), eq(container3)); eventHandler.reset(); taskScheduler.close(); taskSchedulerEventHandler.close(); } @Test(timeout = 30000l) public void testReuseNonLocalRequest() throws IOException, InterruptedException, ExecutionException { Configuration tezConf = new Configuration(new YarnConfiguration()); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_ENABLED, true); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED, true); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED, true); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 100l); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS, 1000l); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MAX_MILLIS, 1000l); TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class); CapturingEventHandler eventHandler = new CapturingEventHandler(); TezDAGID dagID = TezDAGID.getInstance("0", 0, 0); AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest(); TezAMRMClientAsync<CookieContainerRequest> rmClient = spy(new AMRMClientAsyncForTest(rmClientCore, 100)); String appUrl = "url"; String appMsg = "success"; AppFinalStatus finalStatus = new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl); doReturn(finalStatus).when(mockApp).getFinalAppStatus(); AppContext appContext = mock(AppContext.class); doReturn(new Configuration(false)).when(appContext).getAMConf(); AMContainerMap amContainerMap = new AMContainerMap(mock(ContainerHeartbeatHandler.class), mock(TaskAttemptListener.class), new ContainerContextMatcher(), appContext); AMNodeTracker amNodeTracker = new AMNodeTracker(eventHandler, appContext); doReturn(amContainerMap).when(appContext).getAllContainers(); doReturn(amNodeTracker).when(appContext).getNodeTracker(); doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState(); doReturn(dagID).when(appContext).getCurrentDAGID(); doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo(); TaskSchedulerEventHandler taskSchedulerEventHandlerReal = new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient, new AlwaysMatchesContainerMatcher()); TaskSchedulerEventHandler taskSchedulerEventHandler = spy(taskSchedulerEventHandlerReal); taskSchedulerEventHandler.init(tezConf); taskSchedulerEventHandler.start(); TaskSchedulerWithDrainableAppCallback taskScheduler = (TaskSchedulerWithDrainableAppCallback) ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler) .getSpyTaskScheduler(); TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback(); AtomicBoolean drainNotifier = new AtomicBoolean(false); taskScheduler.delayedContainerManager.drainedDelayedContainersForTest = drainNotifier; Resource resource1 = Resource.newInstance(1024, 1); String[] emptyHosts = new String[0]; String[] racks = { "default-rack" }; Priority priority = Priority.newInstance(3); TezVertexID vertexID = TezVertexID.getInstance(dagID, 1); //Vertex 1, Task 1, Attempt 1, no locality information. TezTaskAttemptID taID11 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 1), 1); TaskAttempt ta11 = mock(TaskAttempt.class); doReturn(vertexID).when(ta11).getVertexID(); AMSchedulerEventTALaunchRequest lrEvent11 = createLaunchRequestEvent(taID11, ta11, resource1, emptyHosts, racks, priority); //Vertex1, Task2, Attempt 1, no locality information. TezTaskAttemptID taID12 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 2), 1); TaskAttempt ta12 = mock(TaskAttempt.class); doReturn(vertexID).when(ta12).getVertexID(); AMSchedulerEventTALaunchRequest lrEvent12 = createLaunchRequestEvent(taID12, ta12, resource1, emptyHosts, racks, priority); // Send launch request for task 1 only, deterministic assignment to this task. taskSchedulerEventHandler.handleEvent(lrEvent11); Container container1 = createContainer(1, "randomHost", resource1, priority); // One container allocated. drainNotifier.set(false); taskScheduler.onContainersAllocated(Collections.singletonList(container1)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta11), any(Object.class), eq(container1)); // Send launch request for task2 (vertex2) taskSchedulerEventHandler.handleEvent(lrEvent12); // Task assigned to container completed successfully. // Container should not be immediately assigned to task 2 // until delay expires. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta11, container1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta11), eq(true)); verify(taskSchedulerEventHandler, times(0)).taskAllocated(eq(ta12), any(Object.class), eq(container1)); verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class); eventHandler.reset(); LOG.info("Sleeping to ensure that the scheduling loop runs"); Thread.sleep(3000l); verify(taskSchedulerEventHandler).taskAllocated(eq(ta12), any(Object.class), eq(container1)); // TA12 completed. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta12, container1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); LOG.info("Sleeping to ensure that the scheduling loop runs"); Thread.sleep(3000l); verify(rmClient).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyInvocation(AMContainerEventStopRequest.class); taskScheduler.close(); taskSchedulerEventHandler.close(); } @Test(timeout = 30000l) public void testReuseAcrossVertices() throws IOException, InterruptedException, ExecutionException { Configuration tezConf = new Configuration(new YarnConfiguration()); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_ENABLED, true); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 1l); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS, 2000l); tezConf.setInt(TezConfiguration.TEZ_AM_SESSION_MIN_HELD_CONTAINERS, 1); TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class); CapturingEventHandler eventHandler = new CapturingEventHandler(); TezDAGID dagID = TezDAGID.getInstance("0", 0, 0); AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest(); TezAMRMClientAsync<CookieContainerRequest> rmClient = spy(new AMRMClientAsyncForTest(rmClientCore, 100)); String appUrl = "url"; String appMsg = "success"; AppFinalStatus finalStatus = new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl); doReturn(finalStatus).when(mockApp).getFinalAppStatus(); AppContext appContext = mock(AppContext.class); doReturn(new Configuration(false)).when(appContext).getAMConf(); AMContainerMap amContainerMap = new AMContainerMap(mock(ContainerHeartbeatHandler.class), mock(TaskAttemptListener.class), new ContainerContextMatcher(), appContext); AMNodeTracker amNodeTracker = new AMNodeTracker(eventHandler, appContext); doReturn(amContainerMap).when(appContext).getAllContainers(); doReturn(amNodeTracker).when(appContext).getNodeTracker(); doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState(); doReturn(true).when(appContext).isSession(); doReturn(dagID).when(appContext).getCurrentDAGID(); doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo(); TaskSchedulerEventHandler taskSchedulerEventHandlerReal = new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient, new AlwaysMatchesContainerMatcher()); TaskSchedulerEventHandler taskSchedulerEventHandler = spy(taskSchedulerEventHandlerReal); taskSchedulerEventHandler.init(tezConf); taskSchedulerEventHandler.start(); TaskSchedulerWithDrainableAppCallback taskScheduler = (TaskSchedulerWithDrainableAppCallback) ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler) .getSpyTaskScheduler(); TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback(); AtomicBoolean drainNotifier = new AtomicBoolean(false); taskScheduler.delayedContainerManager.drainedDelayedContainersForTest = drainNotifier; Resource resource1 = Resource.newInstance(1024, 1); String[] host1 = { "host1" }; String[] racks = { "/default-rack" }; Priority priority1 = Priority.newInstance(3); Priority priority2 = Priority.newInstance(4); TezVertexID vertexID1 = TezVertexID.getInstance(dagID, 1); TezVertexID vertexID2 = TezVertexID.getInstance(dagID, 2); //Vertex 1, Task 1, Attempt 1, host1 TezTaskAttemptID taID11 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 1), 1); TaskAttempt ta11 = mock(TaskAttempt.class); doReturn(vertexID1).when(ta11).getVertexID(); AMSchedulerEventTALaunchRequest lrEvent11 = createLaunchRequestEvent(taID11, ta11, resource1, host1, racks, priority1); //Vertex2, Task1, Attempt 1, host1 TezTaskAttemptID taID21 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID2, 1), 1); TaskAttempt ta21 = mock(TaskAttempt.class); doReturn(vertexID2).when(ta21).getVertexID(); AMSchedulerEventTALaunchRequest lrEvent21 = createLaunchRequestEvent(taID21, ta21, resource1, host1, racks, priority2); // Send launch request for task 1 onle, deterministic assignment to this task. taskSchedulerEventHandler.handleEvent(lrEvent11); Container container1 = createContainer(1, host1[0], resource1, priority1); // One container allocated. drainNotifier.set(false); taskScheduler.onContainersAllocated(Collections.singletonList(container1)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta11), any(Object.class), eq(container1)); // Send launch request for task2 (vertex2) taskSchedulerEventHandler.handleEvent(lrEvent21); // Task assigned to container completed successfully. // Container should be assigned to task21. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta11, container1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta11), eq(true)); verify(taskSchedulerEventHandler).taskAllocated(eq(ta21), any(Object.class), eq(container1)); verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); // Task 2 completes. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta21, container1.getId(), TaskAttemptState.SUCCEEDED)); verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); LOG.info("Sleeping to ensure that the scheduling loop runs"); Thread.sleep(3000l); // container should not get released due to min held containers verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); taskScheduler.close(); taskSchedulerEventHandler.close(); } @Test(timeout = 30000l) public void testReuseLocalResourcesChanged() throws IOException, InterruptedException, ExecutionException { Configuration tezConf = new Configuration(new YarnConfiguration()); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_ENABLED, true); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED, true); tezConf.setBoolean(TezConfiguration.TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED, true); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 0); tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS, -1); TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class); CapturingEventHandler eventHandler = new CapturingEventHandler(); TezDAGID dagID1 = TezDAGID.getInstance("0", 1, 0); AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest(); TezAMRMClientAsync<CookieContainerRequest> rmClient = spy(new AMRMClientAsyncForTest(rmClientCore, 100)); String appUrl = "url"; String appMsg = "success"; AppFinalStatus finalStatus = new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl); doReturn(finalStatus).when(mockApp).getFinalAppStatus(); AppContext appContext = mock(AppContext.class); doReturn(new Configuration(false)).when(appContext).getAMConf(); ChangingDAGIDAnswer dagIDAnswer = new ChangingDAGIDAnswer(dagID1); AMContainerMap amContainerMap = new AMContainerMap(mock(ContainerHeartbeatHandler.class), mock(TaskAttemptListener.class), new ContainerContextMatcher(), appContext); AMNodeTracker amNodeTracker = new AMNodeTracker(eventHandler, appContext); doReturn(amContainerMap).when(appContext).getAllContainers(); doReturn(amNodeTracker).when(appContext).getNodeTracker(); doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState(); doReturn(true).when(appContext).isSession(); doAnswer(dagIDAnswer).when(appContext).getCurrentDAGID(); doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo(); TaskSchedulerEventHandler taskSchedulerEventHandlerReal = new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient, new AlwaysMatchesContainerMatcher()); TaskSchedulerEventHandler taskSchedulerEventHandler = spy(taskSchedulerEventHandlerReal); taskSchedulerEventHandler.init(tezConf); taskSchedulerEventHandler.start(); TaskSchedulerWithDrainableAppCallback taskScheduler = (TaskSchedulerWithDrainableAppCallback) ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler) .getSpyTaskScheduler(); TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback(); AtomicBoolean drainNotifier = new AtomicBoolean(false); taskScheduler.delayedContainerManager.drainedDelayedContainersForTest = drainNotifier; Resource resource1 = Resource.newInstance(1024, 1); String[] host1 = { "host1" }; String[] racks = { "/default-rack" }; Priority priority1 = Priority.newInstance(1); String rsrc1 = "rsrc1"; String rsrc2 = "rsrc2"; String rsrc3 = "rsrc3"; LocalResource lr1 = mock(LocalResource.class); LocalResource lr2 = mock(LocalResource.class); LocalResource lr3 = mock(LocalResource.class); AMContainerEventAssignTA assignEvent = null; Map<String, LocalResource> dag1LRs = Maps.newHashMap(); dag1LRs.put(rsrc1, lr1); TezVertexID vertexID11 = TezVertexID.getInstance(dagID1, 1); //Vertex 1, Task 1, Attempt 1, host1, lr1 TezTaskAttemptID taID111 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID11, 1), 1); TaskAttempt ta111 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent11 = createLaunchRequestEvent(taID111, ta111, resource1, host1, racks, priority1, dag1LRs); //Vertex 1, Task 2, Attempt 1, host1, lr1 TezTaskAttemptID taID112 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID11, 2), 1); TaskAttempt ta112 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent12 = createLaunchRequestEvent(taID112, ta112, resource1, host1, racks, priority1, dag1LRs); taskSchedulerEventHandler.handleEvent(lrEvent11); taskSchedulerEventHandler.handleEvent(lrEvent12); Container container1 = createContainer(1, "host1", resource1, priority1); // One container allocated. drainNotifier.set(false); taskScheduler.onContainersAllocated(Collections.singletonList(container1)); TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier); drainableAppCallback.drain(); verify(taskSchedulerEventHandler).taskAllocated(eq(ta111), any(Object.class), eq(container1)); assignEvent = (AMContainerEventAssignTA) eventHandler.verifyInvocation(AMContainerEventAssignTA.class); assertEquals(1, assignEvent.getRemoteTaskLocalResources().size()); // Task assigned to container completed successfully. Container should be re-used. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta111, container1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta111), eq(true)); verify(taskSchedulerEventHandler).taskAllocated(eq(ta112), any(Object.class), eq(container1)); verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class); assignEvent = (AMContainerEventAssignTA) eventHandler.verifyInvocation(AMContainerEventAssignTA.class); assertEquals(1, assignEvent.getRemoteTaskLocalResources().size()); eventHandler.reset(); // Task assigned to container completed successfully. // Verify reuse across hosts. taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta112, container1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta112), eq(true)); verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class); eventHandler.reset(); // Setup DAG2 with additional resources. Make sure the container, even without all resources, is reused. TezDAGID dagID2 = TezDAGID.getInstance("0", 2, 0); dagIDAnswer.setDAGID(dagID2); Map<String, LocalResource> dag2LRs = Maps.newHashMap(); dag2LRs.put(rsrc2, lr2); dag2LRs.put(rsrc3, lr3); TezVertexID vertexID21 = TezVertexID.getInstance(dagID2, 1); //Vertex 2, Task 1, Attempt 1, host1, lr2 TezTaskAttemptID taID211 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID21, 1), 1); TaskAttempt ta211 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent21 = createLaunchRequestEvent(taID211, ta211, resource1, host1, racks, priority1, dag2LRs); //Vertex 2, Task 2, Attempt 1, host1, lr2 TezTaskAttemptID taID212 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID21, 2), 1); TaskAttempt ta212 = mock(TaskAttempt.class); AMSchedulerEventTALaunchRequest lrEvent22 = createLaunchRequestEvent(taID212, ta212, resource1, host1, racks, priority1, dag2LRs); taskSchedulerEventHandler.handleEvent(lrEvent21); taskSchedulerEventHandler.handleEvent(lrEvent22); drainableAppCallback.drain(); // TODO This is terrible, need a better way to ensure the scheduling loop has run LOG.info("Sleeping to ensure that the scheduling loop runs"); Thread.sleep(6000l); verify(taskSchedulerEventHandler).taskAllocated(eq(ta211), any(Object.class), eq(container1)); verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class); assignEvent = (AMContainerEventAssignTA) eventHandler.verifyInvocation(AMContainerEventAssignTA.class); assertEquals(2, assignEvent.getRemoteTaskLocalResources().size()); eventHandler.reset(); taskSchedulerEventHandler .handleEvent(new AMSchedulerEventTAEnded(ta211, container1.getId(), TaskAttemptState.SUCCEEDED)); drainableAppCallback.drain(); verify(taskScheduler).deallocateTask(eq(ta211), eq(true)); verify(taskSchedulerEventHandler).taskAllocated(eq(ta212), any(Object.class), eq(container1)); verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId())); eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class); assignEvent = (AMContainerEventAssignTA) eventHandler.verifyInvocation(AMContainerEventAssignTA.class); assertEquals(2, assignEvent.getRemoteTaskLocalResources().size()); eventHandler.reset(); taskScheduler.close(); taskSchedulerEventHandler.close(); } private Container createContainer(int id, String host, Resource resource, Priority priority) { ContainerId containerID = ContainerId .newInstance(ApplicationAttemptId.newInstance(ApplicationId.newInstance(1, 1), 1), id); NodeId nodeID = NodeId.newInstance(host, 0); Container container = Container.newInstance(containerID, nodeID, host + ":0", resource, priority, null); return container; } private AMSchedulerEventTALaunchRequest createLaunchRequestEvent(TezTaskAttemptID taID, TaskAttempt ta, Resource capability, String[] hosts, String[] racks, Priority priority, ContainerContext containerContext) { TaskLocationHint locationHint = null; if (hosts != null || racks != null) { Set<String> hostsSet = Sets.newHashSet(hosts); Set<String> racksSet = Sets.newHashSet(racks); locationHint = TaskLocationHint.createTaskLocationHint(hostsSet, racksSet); } AMSchedulerEventTALaunchRequest lr = new AMSchedulerEventTALaunchRequest(taID, capability, new TaskSpec( taID, "dagName", "vertexName", -1, ProcessorDescriptor.create("processorClassName"), Collections.singletonList(new InputSpec("vertexName", InputDescriptor.create("inputClassName"), 1)), Collections.singletonList( new OutputSpec("vertexName", OutputDescriptor.create("outputClassName"), 1)), null), ta, locationHint, priority.getPriority(), containerContext); return lr; } private AMSchedulerEventTALaunchRequest createLaunchRequestEvent(TezTaskAttemptID taID, TaskAttempt ta, Resource capability, String[] hosts, String[] racks, Priority priority) { return createLaunchRequestEvent(taID, ta, capability, hosts, racks, priority, new HashMap<String, LocalResource>()); } private AMSchedulerEventTALaunchRequest createLaunchRequestEvent(TezTaskAttemptID taID, TaskAttempt ta, Resource capability, String[] hosts, String[] racks, Priority priority, Map<String, LocalResource> localResources) { return createLaunchRequestEvent(taID, ta, capability, hosts, racks, priority, localResources, ""); } private AMSchedulerEventTALaunchRequest createLaunchRequestEvent(TezTaskAttemptID taID, TaskAttempt ta, Resource capability, String[] hosts, String[] racks, Priority priority, Map<String, LocalResource> localResources, String jvmOpts) { return createLaunchRequestEvent(taID, ta, capability, hosts, racks, priority, new ContainerContext(localResources, new Credentials(), new HashMap<String, String>(), jvmOpts)); } private static class ChangingDAGIDAnswer implements Answer<TezDAGID> { private TezDAGID dagID; public ChangingDAGIDAnswer(TezDAGID dagID) { this.dagID = dagID; } public void setDAGID(TezDAGID dagID) { this.dagID = dagID; } @Override public TezDAGID answer(InvocationOnMock invocation) throws Throwable { return this.dagID; } } }