Examples of MiniYARNCluster

org.apache.hadoop.yarn.server.MiniYARNCluster
Embedded Yarn minicluster for testcases that need to interact with a cluster.
In a real cluster, resource request matching is done using the hostname, and by default Yarn minicluster works in the exact same way as a real cluster.
If a testcase needs to use multiple nodes and exercise resource request matching to a specific node, then the property {@YarnConfiguration.RM_SCHEDULER_INCLUDE_PORT_IN_NODE_NAME} should be settrue in the configuration used to initialize the minicluster.
With this property set to true, the matching will be done using the hostname:port of the namenodes. In such case, the AM must do resource request using hostname:port as the location.

Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

  @Before
  public void setup() throws YarnException, IOException {
    // start minicluster
    conf = new YarnConfiguration();
    yarnCluster =
        new MiniYARNCluster(TestAMRMClient.class.getName(), nodeCount, 1, 1);
    yarnCluster.init(conf);
    yarnCluster.start();
    assertNotNull(yarnCluster);
    assertEquals(STATE.STARTED, yarnCluster.getServiceState());

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Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

    }
  }


  @Test(timeout = 30000)
  public void testAMMRTokens() throws Exception {
    MiniYARNCluster cluster = new MiniYARNCluster("testMRAMTokens", 1, 1, 1);
    YarnClient rmClient = null;
    try {
      cluster.init(new YarnConfiguration());
      cluster.start();
      final Configuration yarnConf = cluster.getConfig();
      rmClient = YarnClient.createYarnClient();
      rmClient.init(yarnConf);
      rmClient.start();


      ApplicationId appId = createApp(rmClient, false);
      waitTillAccepted(rmClient, appId);
      //managed AMs don't return AMRM token
      Assert.assertNull(rmClient.getAMRMToken(appId));


      appId = createApp(rmClient, true);
      waitTillAccepted(rmClient, appId);
      //unmanaged AMs do return AMRM token
      Assert.assertNotNull(rmClient.getAMRMToken(appId));
      
      UserGroupInformation other =
        UserGroupInformation.createUserForTesting("foo", new String[]{});
      appId = other.doAs(
        new PrivilegedExceptionAction<ApplicationId>() {
          @Override
          public ApplicationId run() throws Exception {
            YarnClient rmClient = YarnClient.createYarnClient();
            rmClient.init(yarnConf);
            rmClient.start();
            ApplicationId appId = createApp(rmClient, true);
            waitTillAccepted(rmClient, appId);
            //unmanaged AMs do return AMRM token
            Assert.assertNotNull(rmClient.getAMRMToken(appId));
            return appId;
          }
        });
      //other users don't get AMRM token
      Assert.assertNull(rmClient.getAMRMToken(appId));
    } finally {
      if (rmClient != null) {
        rmClient.stop();
      }
      cluster.stop();
    }
  }

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Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

  @BeforeClass
  public static void setup() throws InterruptedException, IOException {
    LOG.info("Starting up YARN cluster");
    conf.setInt(YarnConfiguration.RM_SCHEDULER_MINIMUM_ALLOCATION_MB, 128);
    if (yarnCluster == null) {
      yarnCluster = new MiniYARNCluster(
          TestUnmanagedAMLauncher.class.getSimpleName(), 1, 1, 1);
      yarnCluster.init(conf);
      yarnCluster.start();
      //get the address
      Configuration yarnClusterConfig = yarnCluster.getConfig();

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Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

    LOG.info("Starting up YARN cluster");
    conf.setInt(YarnConfiguration.RM_SCHEDULER_MINIMUM_ALLOCATION_MB, 128);
    conf.setClass(YarnConfiguration.RM_SCHEDULER, 
        FifoScheduler.class, ResourceScheduler.class);
    if (yarnCluster == null) {
      yarnCluster = new MiniYARNCluster(
        TestDistributedShell.class.getSimpleName(), 1, 1, 1);
      yarnCluster.init(conf);
      yarnCluster.start();
      NodeManager  nm = yarnCluster.getNodeManager(0);
      waitForNMToRegister(nm);

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Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

  @BeforeClass
  public static void setup() throws Exception {
    // start minicluster
    conf = new YarnConfiguration();
    conf.setInt(YarnConfiguration.RM_NM_HEARTBEAT_INTERVAL_MS, 100);
    yarnCluster = new MiniYARNCluster(TestAMRMClient.class.getName(), nodeCount, 1, 1);
    yarnCluster.init(conf);
    yarnCluster.start();


    // start rm client
    yarnClient = YarnClient.createYarnClient();

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Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

      yarnCluster.stop();
      FileUtil.fullyDelete(localFSDirBase);
      localFSDirBase.mkdirs();
    }
    LOG.info("Starting up YARN cluster");
    yarnCluster = new MiniYARNCluster(TestDiskFailures.class.getName(),
        1, numLocalDirs, numLogDirs);
    yarnCluster.init(conf);
    yarnCluster.start();


    NodeManager nm = yarnCluster.getNodeManager(0);

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Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

  @BeforeClass
  public static void setup() throws InterruptedException, IOException {
    LOG.info("Starting up YARN cluster");
    conf.setInt(YarnConfiguration.RM_SCHEDULER_MINIMUM_ALLOCATION_MB, 128);
    if (yarnCluster == null) {
      yarnCluster = new MiniYARNCluster(TestDistributedShell.class.getName(),
          1, 1, 1);
      yarnCluster.init(conf);
      yarnCluster.start();
      URL url = Thread.currentThread().getContextClassLoader().getResource("yarn-site.xml");
      if (url == null) {

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Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

  @BeforeClass
  public static void setup() throws InterruptedException, IOException {
    LOG.info("Starting up YARN cluster");
    conf.setInt("yarn.scheduler.fifo.minimum-allocation-mb", 128);
    if (yarnCluster == null) {
      yarnCluster = new MiniYARNCluster(TestDistributedShell.class.getName(),
          1, 1, 1);
      yarnCluster.init(conf);
      yarnCluster.start();
    }
    try {

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Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

    conf.setLong(YarnConfiguration.CLIENT_FAILOVER_SLEEPTIME_BASE_MS, 100L);


    conf.setBoolean(YarnConfiguration.YARN_MINICLUSTER_FIXED_PORTS, true);
    conf.setBoolean(YarnConfiguration.YARN_MINICLUSTER_USE_RPC, true);


    cluster = new MiniYARNCluster(TestRMFailover.class.getName(), 2, 1, 1, 1);
  }

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Examples of org.apache.hadoop.yarn.server.MiniYARNCluster

  @Before
  public void setup() throws YarnException, IOException {
    // start minicluster
    conf = new YarnConfiguration();
    yarnCluster =
        new MiniYARNCluster(TestAMRMClient.class.getName(), nodeCount, 1, 1);
    yarnCluster.init(conf);
    yarnCluster.start();
    assertNotNull(yarnCluster);
    assertEquals(STATE.STARTED, yarnCluster.getServiceState());

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