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From zentol <...@git.apache.org>
Subject [GitHub] flink pull request #2146: [FLINK-1550/FLINK-4057] Add JobManager Metrics
Date Thu, 30 Jun 2016 10:18:08 GMT
Github user zentol commented on a diff in the pull request:

    https://github.com/apache/flink/pull/2146#discussion_r69107628
  
    --- Diff: flink-runtime/src/test/java/org/apache/flink/runtime/jobmanager/JobManagerMetricTest.java
---
    @@ -0,0 +1,249 @@
    +/*
    + * 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.flink.runtime.jobmanager;
    +
    +import akka.actor.ActorRef;
    +import akka.actor.ActorSystem;
    +import akka.actor.PoisonPill;
    +import akka.actor.Props;
    +import akka.testkit.JavaTestKit;
    +import org.apache.flink.configuration.ConfigConstants;
    +import org.apache.flink.configuration.Configuration;
    +import org.apache.flink.metrics.MetricRegistry;
    +import org.apache.flink.runtime.akka.AkkaUtils;
    +import org.apache.flink.runtime.akka.ListeningBehaviour;
    +import org.apache.flink.runtime.blob.BlobServer;
    +import org.apache.flink.runtime.checkpoint.CompletedCheckpoint;
    +import org.apache.flink.runtime.checkpoint.HeapStateStore;
    +import org.apache.flink.runtime.checkpoint.SavepointStore;
    +import org.apache.flink.runtime.checkpoint.StandaloneCheckpointRecoveryFactory;
    +import org.apache.flink.runtime.clusterframework.types.ResourceID;
    +import org.apache.flink.runtime.execution.librarycache.BlobLibraryCacheManager;
    +import org.apache.flink.runtime.executiongraph.restart.FixedDelayRestartStrategy;
    +import org.apache.flink.runtime.instance.ActorGateway;
    +import org.apache.flink.runtime.instance.AkkaActorGateway;
    +import org.apache.flink.runtime.instance.InstanceManager;
    +import org.apache.flink.runtime.jobgraph.JobGraph;
    +import org.apache.flink.runtime.jobgraph.JobStatus;
    +import org.apache.flink.runtime.jobgraph.JobVertex;
    +import org.apache.flink.runtime.jobgraph.JobVertexID;
    +import org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable;
    +import org.apache.flink.runtime.jobgraph.tasks.JobSnapshottingSettings;
    +import org.apache.flink.runtime.jobmanager.scheduler.Scheduler;
    +import org.apache.flink.runtime.leaderelection.TestingLeaderElectionService;
    +import org.apache.flink.runtime.leaderelection.TestingLeaderRetrievalService;
    +import org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService;
    +import org.apache.flink.runtime.messages.JobManagerMessages;
    +import org.apache.flink.runtime.taskmanager.TaskManager;
    +import org.apache.flink.runtime.testingUtils.TestingJobManager;
    +import org.apache.flink.runtime.testingUtils.TestingJobManagerMessages;
    +import org.apache.flink.runtime.testingUtils.TestingMessages;
    +import org.apache.flink.runtime.testingUtils.TestingTaskManager;
    +import org.apache.flink.runtime.testingUtils.TestingTaskManagerMessages;
    +import org.apache.flink.runtime.testingUtils.TestingUtils;
    +import org.junit.AfterClass;
    +import org.junit.BeforeClass;
    +import org.junit.Rule;
    +import org.junit.Test;
    +import org.junit.rules.TemporaryFolder;
    +import scala.Int;
    +import scala.Option;
    +import scala.concurrent.Await;
    +import scala.concurrent.Future;
    +import scala.concurrent.duration.Deadline;
    +import scala.concurrent.duration.FiniteDuration;
    +
    +import javax.management.MBeanServer;
    +import javax.management.ObjectName;
    +import java.lang.management.ManagementFactory;
    +import java.util.Collections;
    +import java.util.UUID;
    +import java.util.concurrent.ForkJoinPool;
    +import java.util.concurrent.TimeUnit;
    +
    +import static org.apache.flink.metrics.MetricRegistry.KEY_METRICS_SCOPE_NAMING_JM_JOB;
    +import static org.junit.Assert.assertEquals;
    +
    +public class JobManagerMetricTest {
    +
    +	private static ActorSystem system;
    +
    +	@Rule
    +	public TemporaryFolder temporaryFolder = new TemporaryFolder();
    +
    +	@BeforeClass
    +	public static void setup() {
    +		system = AkkaUtils.createLocalActorSystem(new Configuration());
    +	}
    +
    +	@AfterClass
    +	public static void teardown() {
    +		JavaTestKit.shutdownActorSystem(system);
    +	}
    +
    +	/**
    +	 * Tests that metrics registered on the JobManager are actually accessible.
    +	 *
    +	 * @throws Exception
    +	 */
    +	@Test
    +	public void testJobManagerMetricAccess() throws Exception {
    +		FiniteDuration timeout = new FiniteDuration(30, TimeUnit.SECONDS);
    +		FiniteDuration jobRecoveryTimeout = new FiniteDuration(3, TimeUnit.SECONDS);
    +		Deadline deadline = new FiniteDuration(2, TimeUnit.MINUTES).fromNow();
    +		Configuration flinkConfiguration = new Configuration();
    +		UUID leaderSessionID = UUID.randomUUID();
    +		int slots = 2;
    +		ActorRef archive = null;
    +		ActorRef jobManager = null;
    +		ActorRef taskManager = null;
    +		
    +		flinkConfiguration.setInteger(ConfigConstants.TASK_MANAGER_NUM_TASK_SLOTS, slots);
    +		flinkConfiguration.setString(KEY_METRICS_SCOPE_NAMING_JM_JOB, "jobmanager.<job_name>");
    +
    +		try {
    +			Scheduler scheduler = new Scheduler(TestingUtils.defaultExecutionContext());
    +
    +			TestingLeaderElectionService myLeaderElectionService = new TestingLeaderElectionService();
    +			TestingLeaderRetrievalService myLeaderRetrievalService = new TestingLeaderRetrievalService();
    +
    +			InstanceManager instanceManager = new InstanceManager();
    +			instanceManager.addInstanceListener(scheduler);
    +
    +			archive = system.actorOf(Props.create(
    +				MemoryArchivist.class,
    +				10), "archive");
    +
    +			Props jobManagerProps = Props.create(
    +				TestingJobManager.class,
    +				flinkConfiguration,
    +				new ForkJoinPool(),
    +				instanceManager,
    +				scheduler,
    +				new BlobLibraryCacheManager(new BlobServer(flinkConfiguration), 3600000),
    +				archive,
    +				new FixedDelayRestartStrategy.FixedDelayRestartStrategyFactory(Int.MaxValue(), 100),
    +				timeout,
    +				myLeaderElectionService,
    +				new StandaloneSubmittedJobGraphStore(),
    +				new StandaloneCheckpointRecoveryFactory(),
    +				new SavepointStore(new HeapStateStore<CompletedCheckpoint>()),
    +				jobRecoveryTimeout,
    +				Option.apply(new MetricRegistry(flinkConfiguration)));
    +
    +			jobManager = system.actorOf(jobManagerProps, "jobmanager");
    +			ActorGateway gateway = new AkkaActorGateway(jobManager, leaderSessionID);
    +
    +			taskManager = TaskManager.startTaskManagerComponentsAndActor(
    +				flinkConfiguration,
    +				ResourceID.generate(),
    +				system,
    +				"localhost",
    +				Option.apply("taskmanager"),
    +				Option.apply((LeaderRetrievalService) myLeaderRetrievalService),
    +				true,
    +				TestingTaskManager.class);
    +
    +			ActorGateway tmGateway = new AkkaActorGateway(taskManager, leaderSessionID);
    +			Future<Object> tmAlive = tmGateway.ask(TestingMessages.getAlive(), deadline.timeLeft());
    +			Await.ready(tmAlive, deadline.timeLeft());
    +
    +			JobVertex sourceJobVertex = new JobVertex("Source");
    +			sourceJobVertex.setInvokableClass(BlockingInvokable.class);
    +			sourceJobVertex.setParallelism(slots);
    +
    +			JobGraph jobGraph = new JobGraph("TestingJob", sourceJobVertex);
    +			jobGraph.setSnapshotSettings(new JobSnapshottingSettings(
    +				Collections.<JobVertexID>emptyList(),
    +				Collections.<JobVertexID>emptyList(),
    +				Collections.<JobVertexID>emptyList(),
    +				500, 500, 50, 5));
    +
    +			Future<Object> isLeader = gateway.ask(
    +				TestingJobManagerMessages.getNotifyWhenLeader(),
    +				deadline.timeLeft());
    +
    +			Future<Object> isConnectedToJobManager = tmGateway.ask(
    +				new TestingTaskManagerMessages.NotifyWhenRegisteredAtJobManager(jobManager),
    +				deadline.timeLeft());
    +
    +			// tell jobManager that he's the leader
    +			myLeaderElectionService.isLeader(leaderSessionID);
    +			// tell taskManager who's the leader
    +			myLeaderRetrievalService.notifyListener(gateway.path(), leaderSessionID);
    +
    +			Await.ready(isLeader, deadline.timeLeft());
    +			Await.ready(isConnectedToJobManager, deadline.timeLeft());
    --- End diff --
    
    I've refactored the test case.


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