helix-core/src/test/java/org/apache/helix/integration/task/TestWorkflowTermination.java - helix - Git at Google

 package org.apache.helix.integration.task;

 /*
  * 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.
  */

 import java.lang.management.ManagementFactory;
 import javax.management.MBeanServer;
 import javax.management.MalformedObjectNameException;
 import javax.management.ObjectName;

 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Sets;
 import org.apache.helix.TestHelper;
 import org.apache.helix.model.MasterSlaveSMD;
 import org.apache.helix.monitoring.mbeans.MonitorDomainNames;
 import org.apache.helix.task.JobConfig;
 import org.apache.helix.task.JobQueue;
 import org.apache.helix.task.TaskState;
 import org.apache.helix.task.TaskUtil;
 import org.apache.helix.task.Workflow;
 import org.apache.helix.task.WorkflowConfig;
 import org.apache.helix.task.WorkflowContext;
 import org.testng.Assert;
 import org.testng.annotations.BeforeClass;
 import org.testng.annotations.Test;

 /**
  * This test contains cases when a workflow finish
  */
 public class TestWorkflowTermination extends TaskTestBase {
   private final static String JOB_NAME = "TestJob";
   private final static String WORKFLOW_TYPE = "DEFAULT";
   private static final MBeanServer beanServer = ManagementFactory.getPlatformMBeanServer();

   @BeforeClass
   public void beforeClass() throws Exception {
     _numDbs = 1;
     _numNodes = 3;
     _numPartitions = 5;
     _numReplicas = 3;
     super.beforeClass();
   }

   private JobConfig.Builder createJobConfigBuilder(String workflow, boolean shouldJobFail,
       long timeoutMs) {
     String taskState = shouldJobFail ? TaskState.FAILED.name() : TaskState.COMPLETED.name();
     return new JobConfig.Builder().setTargetResource(WorkflowGenerator.DEFAULT_TGT_DB)
         .setTargetPartitionStates(Sets.newHashSet(MasterSlaveSMD.States.MASTER.name()))
         .setWorkflow(workflow).setCommand(MockTask.TASK_COMMAND).setMaxAttemptsPerTask(5)
         .setJobCommandConfigMap(ImmutableMap.of(MockTask.JOB_DELAY, Long.toString(timeoutMs),
             MockTask.TASK_RESULT_STATUS, taskState));
   }

   @Test
   public void testWorkflowSucceed() throws Exception {
     String workflowName = TestHelper.getTestMethodName();
     long workflowExpiry = 2000;
     long timeout = 2000;
     JobConfig.Builder jobBuilder = createJobConfigBuilder(workflowName, false, 50);
     jobBuilder.setWorkflow(workflowName);
     Workflow.Builder workflowBuilder = new Workflow.Builder(workflowName)
         .setWorkflowConfig(new WorkflowConfig.Builder(workflowName).setTimeout(timeout)
             .setWorkFlowType(WORKFLOW_TYPE).build())
         .addJob(JOB_NAME, jobBuilder).setExpiry(workflowExpiry);
     _driver.start(workflowBuilder.build());

     // Timeout is longer than job finish so workflow status should be COMPLETED
     _driver.pollForWorkflowState(workflowName, 5000L, TaskState.COMPLETED);
     long finishTime = _driver.getWorkflowContext(workflowName).getFinishTime();
     WorkflowContext context = _driver.getWorkflowContext(workflowName);
     Assert.assertTrue(context.getFinishTime() - context.getStartTime() < timeout);

     // Workflow should be cleaned up after expiry
     verifyWorkflowCleanup(workflowName, getJobNameToPoll(workflowName, JOB_NAME));
     long cleanUpTime = System.currentTimeMillis();
     Assert.assertTrue(cleanUpTime - finishTime >= workflowExpiry);

     ObjectName objectName = getWorkflowMBeanObjectName(workflowName);
     Assert.assertEquals((long) beanServer.getAttribute(objectName, "SuccessfulWorkflowCount"), 1);
     Assert
         .assertTrue((long) beanServer.getAttribute(objectName, "MaximumWorkflowLatencyGauge") > 0);
     Assert.assertTrue((long) beanServer.getAttribute(objectName, "TotalWorkflowLatencyCount") > 0);

   }

   @Test
   public void testWorkflowRunningTimeout() throws Exception {
     String workflowName = TestHelper.getTestMethodName();
     String notStartedJobName = JOB_NAME + "-NotStarted";
     long workflowExpiry = 2000; // 2sec expiry time
     long timeout = 50;
     JobConfig.Builder jobBuilder = createJobConfigBuilder(workflowName, false, 5000);
     jobBuilder.setWorkflow(workflowName);

     // Create a workflow where job2 depends on job1. Workflow would timeout before job1 finishes
     Workflow.Builder workflowBuilder = new Workflow.Builder(workflowName)
         .setWorkflowConfig(new WorkflowConfig.Builder(workflowName).setTimeout(timeout)
             .setWorkFlowType(WORKFLOW_TYPE).build())
         .addJob(JOB_NAME, jobBuilder).addJob(notStartedJobName, jobBuilder)
         .addParentChildDependency(JOB_NAME, notStartedJobName).setExpiry(workflowExpiry);

     _driver.start(workflowBuilder.build());

     _driver.pollForWorkflowState(workflowName, 10000L, TaskState.TIMED_OUT);
     long finishTime = _driver.getWorkflowContext(workflowName).getFinishTime();

     // Running job should be marked as timeout
     // and job not started should not appear in workflow context
     _driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, JOB_NAME), 10000L,
         TaskState.TIMED_OUT);

     WorkflowContext context = _driver.getWorkflowContext(workflowName);
     Assert.assertNull(context.getJobState(notStartedJobName));
     Assert.assertTrue(context.getFinishTime() - context.getStartTime() >= timeout);

     verifyWorkflowCleanup(workflowName, getJobNameToPoll(workflowName, JOB_NAME),
         getJobNameToPoll(workflowName, notStartedJobName));
     long cleanUpTime = System.currentTimeMillis();
     Assert.assertTrue(cleanUpTime - finishTime >= workflowExpiry);
   }

   @Test
   public void testWorkflowPausedTimeout() throws Exception {
     String workflowName = TestHelper.getTestMethodName();
     long workflowExpiry = 2000; // 2sec expiry time
     long timeout = 5000;
     String notStartedJobName = JOB_NAME + "-NotStarted";

     JobConfig.Builder jobBuilder = createJobConfigBuilder(workflowName, false, 5000);
     jobBuilder.setWorkflow(workflowName);
     Workflow.Builder workflowBuilder = new Workflow.Builder(workflowName)
         .setWorkflowConfig(new WorkflowConfig.Builder(workflowName).setTimeout(timeout)
             .setWorkFlowType(WORKFLOW_TYPE).build())
         .addJob(JOB_NAME, jobBuilder).addJob(notStartedJobName, jobBuilder)
         .addParentChildDependency(JOB_NAME, notStartedJobName).setExpiry(workflowExpiry);

     _driver.start(workflowBuilder.build());

     // Wait a bit for the job to get scheduled. Job runs for 100ms so this will very likely
     // to trigger a job stopped
     Thread.sleep(100);

     // Pause the queue
     _driver.waitToStop(workflowName, 10000L);

     _driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, JOB_NAME), 10000L,
         TaskState.STOPPED);
     WorkflowContext context = _driver.getWorkflowContext(workflowName);
     Assert.assertNull(context.getJobState(notStartedJobName));

     _driver.pollForWorkflowState(workflowName, 10000L, TaskState.TIMED_OUT);
     long finishTime = _driver.getWorkflowContext(workflowName).getFinishTime();

     context = _driver.getWorkflowContext(workflowName);
     Assert.assertTrue(context.getFinishTime() - context.getStartTime() >= timeout);

     verifyWorkflowCleanup(workflowName, getJobNameToPoll(workflowName, JOB_NAME),
         getJobNameToPoll(workflowName, notStartedJobName));
     long cleanUpTime = System.currentTimeMillis();
     Assert.assertTrue(cleanUpTime - finishTime >= workflowExpiry);

   }

   @Test
   public void testJobQueueNotApplyTimeout() throws InterruptedException {
     String queueName = TestHelper.getTestMethodName();
     long timeout = 1000;
     // Make jobs run success
     JobConfig.Builder jobBuilder = createJobConfigBuilder(queueName, false, 10);
     JobQueue.Builder jobQueue = TaskTestUtil.buildJobQueue(queueName);
     jobQueue
         .setWorkflowConfig(new WorkflowConfig.Builder(queueName).setTimeout(timeout)
             .setWorkFlowType(WORKFLOW_TYPE).build())
         .enqueueJob(JOB_NAME, jobBuilder).enqueueJob(JOB_NAME + 1, jobBuilder);

     _driver.start(jobQueue.build());

     _driver.pollForJobState(queueName, TaskUtil.getNamespacedJobName(queueName, JOB_NAME),
         TaskState.COMPLETED);
     _driver.pollForJobState(queueName, TaskUtil.getNamespacedJobName(queueName, JOB_NAME + 1),
         TaskState.COMPLETED);

     Thread.sleep(timeout);

     // Verify that job queue is still in progress
     _driver.pollForWorkflowState(queueName, 10000L, TaskState.IN_PROGRESS);
   }

   @Test
   public void testWorkflowJobFail() throws Exception {
     String workflowName = TestHelper.getTestMethodName();
     String job1 = JOB_NAME + "1";
     String job2 = JOB_NAME + "2";
     String job3 = JOB_NAME + "3";
     String job4 = JOB_NAME + "4";
     long workflowExpiry = 10000;
     long timeout = 10000;

     JobConfig.Builder jobBuilder = createJobConfigBuilder(workflowName, false, 1);
     JobConfig.Builder failedJobBuilder = createJobConfigBuilder(workflowName, true, 1);

     Workflow.Builder workflowBuilder = new Workflow.Builder(workflowName)
         .setWorkflowConfig(new WorkflowConfig.Builder(workflowName).setWorkFlowType(WORKFLOW_TYPE)
             .setTimeout(timeout).setParallelJobs(4).setFailureThreshold(1).build())
         .addJob(job1, jobBuilder).addJob(job2, jobBuilder).addJob(job3, failedJobBuilder)
         .addJob(job4, jobBuilder).addParentChildDependency(job1, job2)
         .addParentChildDependency(job1, job3).addParentChildDependency(job2, job4)
         .addParentChildDependency(job3, job4).setExpiry(workflowExpiry);

     _driver.start(workflowBuilder.build());

     _driver.pollForWorkflowState(workflowName, 10000L, TaskState.FAILED);

     // Timeout is longer than fail time, so the failover should occur earlier
     WorkflowContext context = _driver.getWorkflowContext(workflowName);
     long finishTime = context.getFinishTime();
     Assert.assertTrue(context.getFinishTime() - context.getStartTime() < timeout);

     // job1 will complete
     _driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, job1), 10000L,
         TaskState.COMPLETED);

     // Possible race between 2 and 3 so it's likely for job2 to stay in either COMPLETED or ABORTED
     _driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, job2), 10000L,
         TaskState.COMPLETED, TaskState.ABORTED);

     // job3 meant to fail
     _driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, job3), 10000L,
         TaskState.FAILED);

     // because job4 has dependency over job3, it will fail as well
     _driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, job4), 10000L,
         TaskState.FAILED);

     // Check MBean is updated
     ObjectName objectName = getWorkflowMBeanObjectName(workflowName);
     Assert.assertEquals((long) beanServer.getAttribute(objectName, "FailedWorkflowCount"), 1);

     // For a failed workflow, after timing out, it will be purged
     verifyWorkflowCleanup(workflowName, getJobNameToPoll(workflowName, job1),
         getJobNameToPoll(workflowName, job2), getJobNameToPoll(workflowName, job3),
         getJobNameToPoll(workflowName, job4));

     long cleanUpTime = System.currentTimeMillis();
     Assert.assertTrue(cleanUpTime - finishTime >= workflowExpiry);
   }

   private void verifyWorkflowCleanup(String workflowName, String... jobNames) throws Exception {
     // Verify workflow config and workflow context have been deleted
     Assert
         .assertTrue(
             TestHelper.verify(
                 () -> (_driver.getWorkflowConfig(workflowName) == null
                     && _driver.getWorkflowContext(workflowName) == null),
                 TestHelper.WAIT_DURATION));

     // Verify job config and job context have been deleted
     for (String job : jobNames) {
       Assert.assertTrue(TestHelper.verify(
           () -> (_driver.getJobConfig(job) == null && _driver.getJobContext(job) == null),
           TestHelper.WAIT_DURATION));
     }
   }

   private static String getJobNameToPoll(String workflowName, String jobName) {
     return String.format("%s_%s", workflowName, jobName);
   }

   private ObjectName getWorkflowMBeanObjectName(String workflowName)
       throws MalformedObjectNameException {
     return new ObjectName(String.format("%s:%s=%s, %s=%s", MonitorDomainNames.ClusterStatus.name(),
         "cluster", CLUSTER_NAME, "workflowType", WORKFLOW_TYPE));
   }
 }
	package org.apache.helix.integration.task;

	/*
	* 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.
	*/

	import java.lang.management.ManagementFactory;
	import javax.management.MBeanServer;
	import javax.management.MalformedObjectNameException;
	import javax.management.ObjectName;

	import com.google.common.collect.ImmutableMap;
	import com.google.common.collect.Sets;
	import org.apache.helix.TestHelper;
	import org.apache.helix.model.MasterSlaveSMD;
	import org.apache.helix.monitoring.mbeans.MonitorDomainNames;
	import org.apache.helix.task.JobConfig;
	import org.apache.helix.task.JobQueue;
	import org.apache.helix.task.TaskState;
	import org.apache.helix.task.TaskUtil;
	import org.apache.helix.task.Workflow;
	import org.apache.helix.task.WorkflowConfig;
	import org.apache.helix.task.WorkflowContext;
	import org.testng.Assert;
	import org.testng.annotations.BeforeClass;
	import org.testng.annotations.Test;

	/**
	* This test contains cases when a workflow finish
	*/
	public class TestWorkflowTermination extends TaskTestBase {
	private final static String JOB_NAME = "TestJob";
	private final static String WORKFLOW_TYPE = "DEFAULT";
	private static final MBeanServer beanServer = ManagementFactory.getPlatformMBeanServer();

	@BeforeClass
	public void beforeClass() throws Exception {
	_numDbs = 1;
	_numNodes = 3;
	_numPartitions = 5;
	_numReplicas = 3;
	super.beforeClass();
	}

	private JobConfig.Builder createJobConfigBuilder(String workflow, boolean shouldJobFail,
	long timeoutMs) {
	String taskState = shouldJobFail ? TaskState.FAILED.name() : TaskState.COMPLETED.name();
	return new JobConfig.Builder().setTargetResource(WorkflowGenerator.DEFAULT_TGT_DB)
	.setTargetPartitionStates(Sets.newHashSet(MasterSlaveSMD.States.MASTER.name()))
	.setWorkflow(workflow).setCommand(MockTask.TASK_COMMAND).setMaxAttemptsPerTask(5)
	.setJobCommandConfigMap(ImmutableMap.of(MockTask.JOB_DELAY, Long.toString(timeoutMs),
	MockTask.TASK_RESULT_STATUS, taskState));
	}

	@Test
	public void testWorkflowSucceed() throws Exception {
	String workflowName = TestHelper.getTestMethodName();
	long workflowExpiry = 2000;
	long timeout = 2000;
	JobConfig.Builder jobBuilder = createJobConfigBuilder(workflowName, false, 50);
	jobBuilder.setWorkflow(workflowName);
	Workflow.Builder workflowBuilder = new Workflow.Builder(workflowName)
	.setWorkflowConfig(new WorkflowConfig.Builder(workflowName).setTimeout(timeout)
	.setWorkFlowType(WORKFLOW_TYPE).build())
	.addJob(JOB_NAME, jobBuilder).setExpiry(workflowExpiry);
	_driver.start(workflowBuilder.build());

	// Timeout is longer than job finish so workflow status should be COMPLETED
	_driver.pollForWorkflowState(workflowName, 5000L, TaskState.COMPLETED);
	long finishTime = _driver.getWorkflowContext(workflowName).getFinishTime();
	WorkflowContext context = _driver.getWorkflowContext(workflowName);
	Assert.assertTrue(context.getFinishTime() - context.getStartTime() < timeout);

	// Workflow should be cleaned up after expiry
	verifyWorkflowCleanup(workflowName, getJobNameToPoll(workflowName, JOB_NAME));
	long cleanUpTime = System.currentTimeMillis();
	Assert.assertTrue(cleanUpTime - finishTime >= workflowExpiry);

	ObjectName objectName = getWorkflowMBeanObjectName(workflowName);
	Assert.assertEquals((long) beanServer.getAttribute(objectName, "SuccessfulWorkflowCount"), 1);
	Assert
	.assertTrue((long) beanServer.getAttribute(objectName, "MaximumWorkflowLatencyGauge") > 0);
	Assert.assertTrue((long) beanServer.getAttribute(objectName, "TotalWorkflowLatencyCount") > 0);

	}

	@Test
	public void testWorkflowRunningTimeout() throws Exception {
	String workflowName = TestHelper.getTestMethodName();
	String notStartedJobName = JOB_NAME + "-NotStarted";
	long workflowExpiry = 2000; // 2sec expiry time
	long timeout = 50;
	JobConfig.Builder jobBuilder = createJobConfigBuilder(workflowName, false, 5000);
	jobBuilder.setWorkflow(workflowName);

	// Create a workflow where job2 depends on job1. Workflow would timeout before job1 finishes
	Workflow.Builder workflowBuilder = new Workflow.Builder(workflowName)
	.setWorkflowConfig(new WorkflowConfig.Builder(workflowName).setTimeout(timeout)
	.setWorkFlowType(WORKFLOW_TYPE).build())
	.addJob(JOB_NAME, jobBuilder).addJob(notStartedJobName, jobBuilder)
	.addParentChildDependency(JOB_NAME, notStartedJobName).setExpiry(workflowExpiry);

	_driver.start(workflowBuilder.build());

	_driver.pollForWorkflowState(workflowName, 10000L, TaskState.TIMED_OUT);
	long finishTime = _driver.getWorkflowContext(workflowName).getFinishTime();

	// Running job should be marked as timeout
	// and job not started should not appear in workflow context
	_driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, JOB_NAME), 10000L,
	TaskState.TIMED_OUT);

	WorkflowContext context = _driver.getWorkflowContext(workflowName);
	Assert.assertNull(context.getJobState(notStartedJobName));
	Assert.assertTrue(context.getFinishTime() - context.getStartTime() >= timeout);

	verifyWorkflowCleanup(workflowName, getJobNameToPoll(workflowName, JOB_NAME),
	getJobNameToPoll(workflowName, notStartedJobName));
	long cleanUpTime = System.currentTimeMillis();
	Assert.assertTrue(cleanUpTime - finishTime >= workflowExpiry);
	}

	@Test
	public void testWorkflowPausedTimeout() throws Exception {
	String workflowName = TestHelper.getTestMethodName();
	long workflowExpiry = 2000; // 2sec expiry time
	long timeout = 5000;
	String notStartedJobName = JOB_NAME + "-NotStarted";

	JobConfig.Builder jobBuilder = createJobConfigBuilder(workflowName, false, 5000);
	jobBuilder.setWorkflow(workflowName);
	Workflow.Builder workflowBuilder = new Workflow.Builder(workflowName)
	.setWorkflowConfig(new WorkflowConfig.Builder(workflowName).setTimeout(timeout)
	.setWorkFlowType(WORKFLOW_TYPE).build())
	.addJob(JOB_NAME, jobBuilder).addJob(notStartedJobName, jobBuilder)
	.addParentChildDependency(JOB_NAME, notStartedJobName).setExpiry(workflowExpiry);

	_driver.start(workflowBuilder.build());

	// Wait a bit for the job to get scheduled. Job runs for 100ms so this will very likely
	// to trigger a job stopped
	Thread.sleep(100);

	// Pause the queue
	_driver.waitToStop(workflowName, 10000L);

	_driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, JOB_NAME), 10000L,
	TaskState.STOPPED);
	WorkflowContext context = _driver.getWorkflowContext(workflowName);
	Assert.assertNull(context.getJobState(notStartedJobName));

	_driver.pollForWorkflowState(workflowName, 10000L, TaskState.TIMED_OUT);
	long finishTime = _driver.getWorkflowContext(workflowName).getFinishTime();

	context = _driver.getWorkflowContext(workflowName);
	Assert.assertTrue(context.getFinishTime() - context.getStartTime() >= timeout);

	verifyWorkflowCleanup(workflowName, getJobNameToPoll(workflowName, JOB_NAME),
	getJobNameToPoll(workflowName, notStartedJobName));
	long cleanUpTime = System.currentTimeMillis();
	Assert.assertTrue(cleanUpTime - finishTime >= workflowExpiry);

	}

	@Test
	public void testJobQueueNotApplyTimeout() throws InterruptedException {
	String queueName = TestHelper.getTestMethodName();
	long timeout = 1000;
	// Make jobs run success
	JobConfig.Builder jobBuilder = createJobConfigBuilder(queueName, false, 10);
	JobQueue.Builder jobQueue = TaskTestUtil.buildJobQueue(queueName);
	jobQueue
	.setWorkflowConfig(new WorkflowConfig.Builder(queueName).setTimeout(timeout)
	.setWorkFlowType(WORKFLOW_TYPE).build())
	.enqueueJob(JOB_NAME, jobBuilder).enqueueJob(JOB_NAME + 1, jobBuilder);

	_driver.start(jobQueue.build());

	_driver.pollForJobState(queueName, TaskUtil.getNamespacedJobName(queueName, JOB_NAME),
	TaskState.COMPLETED);
	_driver.pollForJobState(queueName, TaskUtil.getNamespacedJobName(queueName, JOB_NAME + 1),
	TaskState.COMPLETED);

	Thread.sleep(timeout);

	// Verify that job queue is still in progress
	_driver.pollForWorkflowState(queueName, 10000L, TaskState.IN_PROGRESS);
	}

	@Test
	public void testWorkflowJobFail() throws Exception {
	String workflowName = TestHelper.getTestMethodName();
	String job1 = JOB_NAME + "1";
	String job2 = JOB_NAME + "2";
	String job3 = JOB_NAME + "3";
	String job4 = JOB_NAME + "4";
	long workflowExpiry = 10000;
	long timeout = 10000;

	JobConfig.Builder jobBuilder = createJobConfigBuilder(workflowName, false, 1);
	JobConfig.Builder failedJobBuilder = createJobConfigBuilder(workflowName, true, 1);

	Workflow.Builder workflowBuilder = new Workflow.Builder(workflowName)
	.setWorkflowConfig(new WorkflowConfig.Builder(workflowName).setWorkFlowType(WORKFLOW_TYPE)
	.setTimeout(timeout).setParallelJobs(4).setFailureThreshold(1).build())
	.addJob(job1, jobBuilder).addJob(job2, jobBuilder).addJob(job3, failedJobBuilder)
	.addJob(job4, jobBuilder).addParentChildDependency(job1, job2)
	.addParentChildDependency(job1, job3).addParentChildDependency(job2, job4)
	.addParentChildDependency(job3, job4).setExpiry(workflowExpiry);

	_driver.start(workflowBuilder.build());

	_driver.pollForWorkflowState(workflowName, 10000L, TaskState.FAILED);

	// Timeout is longer than fail time, so the failover should occur earlier
	WorkflowContext context = _driver.getWorkflowContext(workflowName);
	long finishTime = context.getFinishTime();
	Assert.assertTrue(context.getFinishTime() - context.getStartTime() < timeout);

	// job1 will complete
	_driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, job1), 10000L,
	TaskState.COMPLETED);

	// Possible race between 2 and 3 so it's likely for job2 to stay in either COMPLETED or ABORTED
	_driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, job2), 10000L,
	TaskState.COMPLETED, TaskState.ABORTED);

	// job3 meant to fail
	_driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, job3), 10000L,
	TaskState.FAILED);

	// because job4 has dependency over job3, it will fail as well
	_driver.pollForJobState(workflowName, getJobNameToPoll(workflowName, job4), 10000L,
	TaskState.FAILED);

	// Check MBean is updated
	ObjectName objectName = getWorkflowMBeanObjectName(workflowName);
	Assert.assertEquals((long) beanServer.getAttribute(objectName, "FailedWorkflowCount"), 1);

	// For a failed workflow, after timing out, it will be purged
	verifyWorkflowCleanup(workflowName, getJobNameToPoll(workflowName, job1),
	getJobNameToPoll(workflowName, job2), getJobNameToPoll(workflowName, job3),
	getJobNameToPoll(workflowName, job4));

	long cleanUpTime = System.currentTimeMillis();
	Assert.assertTrue(cleanUpTime - finishTime >= workflowExpiry);
	}

	private void verifyWorkflowCleanup(String workflowName, String... jobNames) throws Exception {
	// Verify workflow config and workflow context have been deleted
	Assert
	.assertTrue(
	TestHelper.verify(
	() -> (_driver.getWorkflowConfig(workflowName) == null
	&& _driver.getWorkflowContext(workflowName) == null),
	TestHelper.WAIT_DURATION));

	// Verify job config and job context have been deleted
	for (String job : jobNames) {
	Assert.assertTrue(TestHelper.verify(
	() -> (_driver.getJobConfig(job) == null && _driver.getJobContext(job) == null),
	TestHelper.WAIT_DURATION));
	}
	}

	private static String getJobNameToPoll(String workflowName, String jobName) {
	return String.format("%s_%s", workflowName, jobName);
	}

	private ObjectName getWorkflowMBeanObjectName(String workflowName)
	throws MalformedObjectNameException {
	return new ObjectName(String.format("%s:%s=%s, %s=%s", MonitorDomainNames.ClusterStatus.name(),
	"cluster", CLUSTER_NAME, "workflowType", WORKFLOW_TYPE));
	}
	}