| package org.apache.helix.monitoring.mbeans; |
| |
| /* |
| * 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 java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import javax.management.MBeanAttributeInfo; |
| import javax.management.MBeanInfo; |
| import javax.management.MBeanServerConnection; |
| import javax.management.ObjectInstance; |
| import javax.management.ObjectName; |
| import javax.management.Query; |
| import javax.management.QueryExp; |
| |
| import com.google.common.collect.ImmutableMap; |
| import org.apache.helix.TestHelper; |
| import org.apache.helix.integration.manager.ClusterControllerManager; |
| import org.apache.helix.integration.task.MockTask; |
| import org.apache.helix.task.JobConfig; |
| import org.apache.helix.task.TaskConfig; |
| import org.apache.helix.task.TaskSynchronizedTestBase; |
| import org.apache.helix.task.Workflow; |
| import org.testng.Assert; |
| import org.testng.annotations.BeforeClass; |
| import org.testng.annotations.Test; |
| |
| /** |
| * Tests that performance profiling metrics via JobMonitorMBean are computed correctly. |
| */ |
| public class TestTaskPerformanceMetrics extends TaskSynchronizedTestBase { |
| private static final long TASK_LATENCY = 100L; |
| // Configurable values for test setup |
| private static final MBeanServerConnection _server = ManagementFactory.getPlatformMBeanServer(); |
| private Map<String, Object> _beanValueMap = new HashMap<>(); |
| |
| @BeforeClass |
| public void beforeClass() throws Exception { |
| setSingleTestEnvironment(); |
| super.beforeClass(); |
| } |
| |
| /** |
| * Test the following metrics are dynamically emitted: |
| * SubmissionToStartDelay |
| * ControllerInducedDelay |
| * The test schedules a workflow with 30 jobs, each with one task with TASK_LATENCY. |
| * AllowOverlapJobAssignment is false, so these jobs will be run in series, one at a time. |
| * With this setup, we can assume that the mean value of the metrics above will increase every |
| * time we poll at some interval greater than TASK_LATENCY. |
| * @throws Exception |
| */ |
| @Test |
| public void testTaskPerformanceMetrics() throws Exception { |
| // Create a workflow |
| JobConfig.Builder jobConfigBuilder = new JobConfig.Builder(); |
| TaskConfig.Builder taskConfigBuilder = new TaskConfig.Builder(); |
| List<TaskConfig> taskConfigs = new ArrayList<>(); |
| TaskConfig taskConfig = taskConfigBuilder.setTaskId("1").setCommand("Reindex").build(); |
| taskConfig.getConfigMap().put("Latency", Long.toString(TASK_LATENCY)); |
| taskConfigs.add(taskConfig); |
| jobConfigBuilder.addTaskConfigs(taskConfigs) |
| .setJobCommandConfigMap(ImmutableMap.of(MockTask.JOB_DELAY, Long.toString(TASK_LATENCY))); |
| Workflow.Builder workflowBuilder = new Workflow.Builder("wf"); |
| for (int i = 0; i < 30; i++) { |
| workflowBuilder.addJob("job_" + i, jobConfigBuilder); |
| } |
| Workflow workflow = workflowBuilder.build(); |
| |
| // Start the controller and start the workflow |
| _controller = new ClusterControllerManager(ZK_ADDR, CLUSTER_NAME); |
| _controller.syncStart(); |
| _driver.start(workflow); |
| |
| // Confirm that there are metrics computed dynamically here and keeps increasing because jobs |
| // are processed one by one |
| double oldSubmissionToStartDelay = 0.0d; |
| double oldControllerInducedDelay = -1L; |
| |
| for (int i = 0; i < 5; i++) { |
| // Wait until new dynamic metrics are updated. |
| final double oldDelay = oldSubmissionToStartDelay; |
| TestHelper.verify(() -> { |
| extractMetrics(); |
| return ((double) _beanValueMap.getOrDefault("SubmissionToScheduleDelayGauge.Mean", 0.0d)) |
| > oldDelay |
| && ((double) _beanValueMap.getOrDefault("SubmissionToProcessDelayGauge.Mean", 0.0d)) |
| > 0.0d; |
| }, TestHelper.WAIT_DURATION); |
| |
| // For SubmissionToProcessDelay, the value will stay constant because the Controller will |
| // create JobContext right away most of the time |
| Assert.assertTrue(_beanValueMap.containsKey("SubmissionToProcessDelayGauge.Mean")); |
| Assert.assertTrue(_beanValueMap.containsKey("SubmissionToScheduleDelayGauge.Mean")); |
| Assert.assertTrue(_beanValueMap.containsKey("ControllerInducedDelayGauge.Mean")); |
| |
| // Get the new values |
| double submissionToProcessDelay = |
| (double) _beanValueMap.get("SubmissionToProcessDelayGauge.Mean"); |
| double newSubmissionToScheduleDelay = |
| (double) _beanValueMap.get("SubmissionToScheduleDelayGauge.Mean"); |
| double newControllerInducedDelay = |
| (double) _beanValueMap.get("ControllerInducedDelayGauge.Mean"); |
| |
| Assert.assertTrue(submissionToProcessDelay > 0); |
| Assert.assertTrue(oldSubmissionToStartDelay < newSubmissionToScheduleDelay); |
| Assert.assertTrue(oldControllerInducedDelay < newControllerInducedDelay); |
| |
| oldSubmissionToStartDelay = newSubmissionToScheduleDelay; |
| oldControllerInducedDelay = newControllerInducedDelay; |
| } |
| } |
| |
| /** |
| * Queries for all MBeans from the MBean Server and only looks at the relevant MBean and gets its |
| * metric numbers. |
| */ |
| private void extractMetrics() { |
| try { |
| QueryExp exp = Query.match(Query.attr("SensorName"), Query.value(CLUSTER_NAME + ".Job.*")); |
| Set<ObjectInstance> mbeans = new HashSet<>( |
| ManagementFactory.getPlatformMBeanServer().queryMBeans(new ObjectName("ClusterStatus:*"), exp)); |
| for (ObjectInstance instance : mbeans) { |
| ObjectName beanName = instance.getObjectName(); |
| if (instance.getClassName().endsWith("JobMonitor")) { |
| MBeanInfo info = _server.getMBeanInfo(beanName); |
| MBeanAttributeInfo[] infos = info.getAttributes(); |
| for (MBeanAttributeInfo infoItem : infos) { |
| Object val = _server.getAttribute(beanName, infoItem.getName()); |
| _beanValueMap.put(infoItem.getName(), val); |
| } |
| } |
| } |
| } catch (Exception e) { |
| // update failed |
| } |
| } |
| } |