| // 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. |
| |
| using System; |
| using System.Collections.Generic; |
| using Org.Apache.REEF.Common.Context; |
| using Org.Apache.REEF.Common.Services; |
| using Org.Apache.REEF.Common.Tasks; |
| using Org.Apache.REEF.Common.Telemetry; |
| using Org.Apache.REEF.Driver; |
| using Org.Apache.REEF.Driver.Context; |
| using Org.Apache.REEF.Driver.Evaluator; |
| using Org.Apache.REEF.Driver.Task; |
| using Org.Apache.REEF.Tang.Annotations; |
| using Org.Apache.REEF.Tang.Implementations.Configuration; |
| using Org.Apache.REEF.Tang.Util; |
| using Org.Apache.REEF.Tests.Functional.Messaging; |
| using Org.Apache.REEF.Utilities.Logging; |
| |
| namespace Org.Apache.REEF.Tests.Functional.Telemetry |
| { |
| /// <summary> |
| /// Test driver to test metrics |
| /// </summary> |
| class MetricsDriver : |
| IObserver<IDriverStarted>, |
| IObserver<IAllocatedEvaluator>, |
| IObserver<IActiveContext>, |
| IObserver<ICompletedTask> |
| { |
| private static readonly Logger Logger = Logger.GetLogger(typeof(MessageDriver)); |
| private readonly IEvaluatorRequestor _evaluatorRequestor; |
| internal const string EventPrefix = "TestState"; |
| |
| /// <summary> |
| /// a set of driver metrics observers. |
| /// </summary> |
| private readonly ISet<IObserver<IDriverMetrics>> _driverMetricsObservers; |
| |
| /// <summary> |
| /// This driver inject DriverMetricsObservers and IDriverMetrics. |
| /// It keeps updating the driver metrics when receiving events. |
| /// </summary> |
| /// <param name="evaluatorRequestor"></param> |
| /// <param name="driverMetricsObservers"></param> |
| [Inject] |
| public MetricsDriver(IEvaluatorRequestor evaluatorRequestor, |
| [Parameter(typeof(DriverMetricsObservers))] ISet<IObserver<IDriverMetrics>> driverMetricsObservers) |
| { |
| _evaluatorRequestor = evaluatorRequestor; |
| _driverMetricsObservers = driverMetricsObservers; |
| } |
| |
| public void OnNext(IDriverStarted value) |
| { |
| UpdateMetrics(TestSystemState.DriverStarted); |
| |
| var request = |
| _evaluatorRequestor.NewBuilder() |
| .SetNumber(1) |
| .SetMegabytes(512) |
| .SetCores(2) |
| .SetRackName("WonderlandRack") |
| .SetEvaluatorBatchId("MetricsEvaluator") |
| .Build(); |
| _evaluatorRequestor.Submit(request); |
| } |
| |
| public void OnNext(IAllocatedEvaluator value) |
| { |
| Logger.Log(Level.Info, "Received IAllocatedEvaluator"); |
| UpdateMetrics(TestSystemState.EvaluatorAllocated); |
| |
| const string contextId = "ContextID"; |
| var serviceConfiguration = ServiceConfiguration.ConfigurationModule |
| .Build(); |
| |
| var contextConfiguration1 = ContextConfiguration.ConfigurationModule |
| .Set(ContextConfiguration.Identifier, contextId) |
| .Build(); |
| |
| var contextConfiguration2 = MessageSenderConfigurationModule.ConfigurationModule.Build(); |
| |
| var contextConfiguration = Configurations.Merge(contextConfiguration1, contextConfiguration2); |
| value.SubmitContextAndService(contextConfiguration, serviceConfiguration); |
| } |
| |
| public void OnNext(IActiveContext activeContext) |
| { |
| Logger.Log(Level.Info, "Received IActiveContext"); |
| UpdateMetrics(TestSystemState.ActiveContextReceived); |
| |
| const string taskId = "TaskID"; |
| var taskConfiguration = TaskConfiguration.ConfigurationModule |
| .Set(TaskConfiguration.Identifier, taskId) |
| .Set(TaskConfiguration.Task, GenericType<MetricsTask>.Class) |
| .Build(); |
| activeContext.SubmitTask(taskConfiguration); |
| } |
| |
| public void OnNext(ICompletedTask value) |
| { |
| Logger.Log(Level.Info, "Received ICompletedTask"); |
| UpdateMetrics(TestSystemState.TaskCompleted); |
| |
| value.ActiveContext.Dispose(); |
| } |
| |
| public void OnCompleted() |
| { |
| throw new NotImplementedException(); |
| } |
| |
| public void OnError(Exception error) |
| { |
| throw new NotImplementedException(); |
| } |
| |
| /// <summary> |
| /// Call metrics observers with driver metrics data |
| /// </summary> |
| private void UpdateMetrics(TestSystemState systemState) |
| { |
| var driverMetrics = new DriverMetrics(EventPrefix + systemState, DateTime.Now); |
| |
| foreach (var metricsObserver in _driverMetricsObservers) |
| { |
| metricsObserver.OnNext(driverMetrics); |
| } |
| } |
| } |
| |
| internal enum TestSystemState |
| { |
| DriverStarted, |
| EvaluatorAllocated, |
| ActiveContextReceived, |
| TaskCompleted |
| } |
| } |