org.apache.hadoop.hdfs.server.namenode.ha.HATestUtil#configureFailoverFs

Source File: TestDFSClientFailover.java From hadoop with Apache License 2.0

6 votes

/**
 * Make sure that client failover works when an active NN dies and the standby
 * takes over.
 */
@Test
public void testDfsClientFailover() throws IOException, URISyntaxException {
  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  
  DFSTestUtil.createFile(fs, TEST_FILE,
      FILE_LENGTH_TO_VERIFY, (short)1, 1L);
  
  assertEquals(fs.getFileStatus(TEST_FILE).getLen(), FILE_LENGTH_TO_VERIFY);
  cluster.shutdownNameNode(0);
  cluster.transitionToActive(1);
  assertEquals(fs.getFileStatus(TEST_FILE).getLen(), FILE_LENGTH_TO_VERIFY);
  
  // Check that it functions even if the URL becomes canonicalized
  // to include a port number.
  Path withPort = new Path("hdfs://" +
      HATestUtil.getLogicalHostname(cluster) + ":" +
      NameNode.DEFAULT_PORT + "/" + TEST_FILE.toUri().getPath());
  FileSystem fs2 = withPort.getFileSystem(fs.getConf());
  assertTrue(fs2.exists(withPort));

  fs.close();
}

Source File: TestDFSClientFailover.java From hadoop with Apache License 2.0

6 votes

/**
 * Test that even a non-idempotent method will properly fail-over if the
 * first IPC attempt times out trying to connect. Regression test for
 * HDFS-4404. 
 */
@Test
public void testFailoverOnConnectTimeout() throws Exception {
  conf.setClass(CommonConfigurationKeysPublic.HADOOP_RPC_SOCKET_FACTORY_CLASS_DEFAULT_KEY,
      InjectingSocketFactory.class, SocketFactory.class);
  // Set up the InjectingSocketFactory to throw a ConnectTimeoutException
  // when connecting to the first NN.
  InjectingSocketFactory.portToInjectOn = cluster.getNameNodePort(0);

  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  
  // Make the second NN the active one.
  cluster.shutdownNameNode(0);
  cluster.transitionToActive(1);
  
  // Call a non-idempotent method, and ensure the failover of the call proceeds
  // successfully.
  IOUtils.closeStream(fs.create(TEST_FILE));
}

Source File: TestDFSClientFailover.java From hadoop with Apache License 2.0

6 votes

/**
 * Same test as above, but for FileContext.
 */
@Test
public void testFileContextDoesntDnsResolveLogicalURI() throws Exception {
  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  NameService spyNS = spyOnNameService();
  String logicalHost = fs.getUri().getHost();
  Configuration haClientConf = fs.getConf();
  
  FileContext fc = FileContext.getFileContext(haClientConf);
  Path root = new Path("/");
  fc.listStatus(root);
  fc.listStatus(fc.makeQualified(root));
  fc.getDefaultFileSystem().getCanonicalServiceName();

  // Ensure that the logical hostname was never resolved.
  Mockito.verify(spyNS, Mockito.never()).lookupAllHostAddr(Mockito.eq(logicalHost));
}

Source File: TestNameNodeRetryCacheMetrics.java From big-c with Apache License 2.0

6 votes

/** Start a cluster */
@Before
public void setup() throws Exception {
  conf = new HdfsConfiguration();
  conf.setBoolean(DFS_NAMENODE_ENABLE_RETRY_CACHE_KEY, true);
  conf.setInt(DFSConfigKeys.DFS_CLIENT_TEST_DROP_NAMENODE_RESPONSE_NUM_KEY, 2);
  cluster = new MiniDFSCluster.Builder(conf)
      .nnTopology(MiniDFSNNTopology.simpleHATopology()).numDataNodes(3)
      .build();
  cluster.waitActive();
  cluster.transitionToActive(namenodeId);
  HATestUtil.setFailoverConfigurations(cluster, conf);
  filesystem = (DistributedFileSystem) HATestUtil.configureFailoverFs(cluster, conf);
  namesystem = cluster.getNamesystem(namenodeId);
  metrics = namesystem.getRetryCache().getMetricsForTests();
}

Source File: TestNameNodeRetryCacheMetrics.java From hadoop with Apache License 2.0

6 votes

/** Start a cluster */
@Before
public void setup() throws Exception {
  conf = new HdfsConfiguration();
  conf.setBoolean(DFS_NAMENODE_ENABLE_RETRY_CACHE_KEY, true);
  conf.setInt(DFSConfigKeys.DFS_CLIENT_TEST_DROP_NAMENODE_RESPONSE_NUM_KEY, 2);
  cluster = new MiniDFSCluster.Builder(conf)
      .nnTopology(MiniDFSNNTopology.simpleHATopology()).numDataNodes(3)
      .build();
  cluster.waitActive();
  cluster.transitionToActive(namenodeId);
  HATestUtil.setFailoverConfigurations(cluster, conf);
  filesystem = (DistributedFileSystem) HATestUtil.configureFailoverFs(cluster, conf);
  namesystem = cluster.getNamesystem(namenodeId);
  metrics = namesystem.getRetryCache().getMetricsForTests();
}

Source File: TestDFSClientFailover.java From big-c with Apache License 2.0

6 votes

/**
 * Test that even a non-idempotent method will properly fail-over if the
 * first IPC attempt times out trying to connect. Regression test for
 * HDFS-4404. 
 */
@Test
public void testFailoverOnConnectTimeout() throws Exception {
  conf.setClass(CommonConfigurationKeysPublic.HADOOP_RPC_SOCKET_FACTORY_CLASS_DEFAULT_KEY,
      InjectingSocketFactory.class, SocketFactory.class);
  // Set up the InjectingSocketFactory to throw a ConnectTimeoutException
  // when connecting to the first NN.
  InjectingSocketFactory.portToInjectOn = cluster.getNameNodePort(0);

  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  
  // Make the second NN the active one.
  cluster.shutdownNameNode(0);
  cluster.transitionToActive(1);
  
  // Call a non-idempotent method, and ensure the failover of the call proceeds
  // successfully.
  IOUtils.closeStream(fs.create(TEST_FILE));
}

Source File: TestDFSClientFailover.java From big-c with Apache License 2.0

6 votes

/**
 * Make sure that client failover works when an active NN dies and the standby
 * takes over.
 */
@Test
public void testDfsClientFailover() throws IOException, URISyntaxException {
  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  
  DFSTestUtil.createFile(fs, TEST_FILE,
      FILE_LENGTH_TO_VERIFY, (short)1, 1L);
  
  assertEquals(fs.getFileStatus(TEST_FILE).getLen(), FILE_LENGTH_TO_VERIFY);
  cluster.shutdownNameNode(0);
  cluster.transitionToActive(1);
  assertEquals(fs.getFileStatus(TEST_FILE).getLen(), FILE_LENGTH_TO_VERIFY);
  
  // Check that it functions even if the URL becomes canonicalized
  // to include a port number.
  Path withPort = new Path("hdfs://" +
      HATestUtil.getLogicalHostname(cluster) + ":" +
      NameNode.DEFAULT_PORT + "/" + TEST_FILE.toUri().getPath());
  FileSystem fs2 = withPort.getFileSystem(fs.getConf());
  assertTrue(fs2.exists(withPort));

  fs.close();
}

Source File: TestBookKeeperHACheckpoints.java From big-c with Apache License 2.0

5 votes

@SuppressWarnings("rawtypes")
@Override
@Before
public void setupCluster() throws Exception {
  Configuration conf = setupCommonConfig();
  conf.set(DFSConfigKeys.DFS_NAMENODE_SHARED_EDITS_DIR_KEY,
           BKJMUtil.createJournalURI("/checkpointing" + journalCount++)
           .toString());
  BKJMUtil.addJournalManagerDefinition(conf);
  MiniDFSNNTopology topology = new MiniDFSNNTopology()
    .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
      .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10001))
      .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10002)));

  cluster = new MiniDFSCluster.Builder(conf)
    .nnTopology(topology)
    .numDataNodes(1)
    .manageNameDfsSharedDirs(false)
    .build();
  cluster.waitActive();

  nn0 = cluster.getNameNode(0);
  nn1 = cluster.getNameNode(1);
  fs = HATestUtil.configureFailoverFs(cluster, conf);

  cluster.transitionToActive(0);
}

Source File: TestEncryptionZonesWithHA.java From hadoop with Apache License 2.0

5 votes

@Before
public void setupCluster() throws Exception {
  conf = new Configuration();
  conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
  HAUtil.setAllowStandbyReads(conf, true);
  fsHelper = new FileSystemTestHelper();
  String testRoot = fsHelper.getTestRootDir();
  testRootDir = new File(testRoot).getAbsoluteFile();
  conf.set(DFSConfigKeys.DFS_ENCRYPTION_KEY_PROVIDER_URI,
      JavaKeyStoreProvider.SCHEME_NAME + "://file" +
      new Path(testRootDir.toString(), "test.jks").toUri()
  );

  cluster = new MiniDFSCluster.Builder(conf)
    .nnTopology(MiniDFSNNTopology.simpleHATopology())
    .numDataNodes(1)
    .build();
  cluster.waitActive();
  cluster.transitionToActive(0);

  fs = (DistributedFileSystem)HATestUtil.configureFailoverFs(cluster, conf);
  DFSTestUtil.createKey(TEST_KEY, cluster, 0, conf);
  DFSTestUtil.createKey(TEST_KEY, cluster, 1, conf);
  nn0 = cluster.getNameNode(0);
  nn1 = cluster.getNameNode(1);
  dfsAdmin0 = new HdfsAdmin(cluster.getURI(0), conf);
  dfsAdmin1 = new HdfsAdmin(cluster.getURI(1), conf);
  KeyProviderCryptoExtension nn0Provider =
      cluster.getNameNode(0).getNamesystem().getProvider();
  fs.getClient().setKeyProvider(nn0Provider);
}

Source File: TestEditLogAutoroll.java From big-c with Apache License 2.0

5 votes

@Before
public void setUp() throws Exception {
  conf = new Configuration();
  // Stall the standby checkpointer in two ways
  conf.setLong(DFS_NAMENODE_CHECKPOINT_PERIOD_KEY, Long.MAX_VALUE);
  conf.setLong(DFS_NAMENODE_CHECKPOINT_TXNS_KEY, 20);
  // Make it autoroll after 10 edits
  conf.setFloat(DFS_NAMENODE_EDIT_LOG_AUTOROLL_MULTIPLIER_THRESHOLD, 0.5f);
  conf.setInt(DFS_NAMENODE_EDIT_LOG_AUTOROLL_CHECK_INTERVAL_MS, 100);

  int retryCount = 0;
  while (true) {
    try {
      int basePort = 10060 + random.nextInt(100) * 2;
      MiniDFSNNTopology topology = new MiniDFSNNTopology()
          .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
              .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(basePort))
              .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(basePort + 1)));

      cluster = new MiniDFSCluster.Builder(conf)
          .nnTopology(topology)
          .numDataNodes(0)
          .build();
      cluster.waitActive();

      nn0 = cluster.getNameNode(0);
      fs = HATestUtil.configureFailoverFs(cluster, conf);

      cluster.transitionToActive(0);

      fs = cluster.getFileSystem(0);
      editLog = nn0.getNamesystem().getEditLog();
      ++retryCount;
      break;
    } catch (BindException e) {
      LOG.info("Set up MiniDFSCluster failed due to port conflicts, retry "
          + retryCount + " times");
    }
  }
}

Source File: TestEncryptionZonesWithHA.java From big-c with Apache License 2.0

5 votes

@Before
public void setupCluster() throws Exception {
  conf = new Configuration();
  conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
  HAUtil.setAllowStandbyReads(conf, true);
  fsHelper = new FileSystemTestHelper();
  String testRoot = fsHelper.getTestRootDir();
  testRootDir = new File(testRoot).getAbsoluteFile();
  conf.set(DFSConfigKeys.DFS_ENCRYPTION_KEY_PROVIDER_URI,
      JavaKeyStoreProvider.SCHEME_NAME + "://file" +
      new Path(testRootDir.toString(), "test.jks").toUri()
  );

  cluster = new MiniDFSCluster.Builder(conf)
    .nnTopology(MiniDFSNNTopology.simpleHATopology())
    .numDataNodes(1)
    .build();
  cluster.waitActive();
  cluster.transitionToActive(0);

  fs = (DistributedFileSystem)HATestUtil.configureFailoverFs(cluster, conf);
  DFSTestUtil.createKey(TEST_KEY, cluster, 0, conf);
  DFSTestUtil.createKey(TEST_KEY, cluster, 1, conf);
  nn0 = cluster.getNameNode(0);
  nn1 = cluster.getNameNode(1);
  dfsAdmin0 = new HdfsAdmin(cluster.getURI(0), conf);
  dfsAdmin1 = new HdfsAdmin(cluster.getURI(1), conf);
  KeyProviderCryptoExtension nn0Provider =
      cluster.getNameNode(0).getNamesystem().getProvider();
  fs.getClient().setKeyProvider(nn0Provider);
}

Source File: TestBookKeeperHACheckpoints.java From hadoop with Apache License 2.0

5 votes

@SuppressWarnings("rawtypes")
@Override
@Before
public void setupCluster() throws Exception {
  Configuration conf = setupCommonConfig();
  conf.set(DFSConfigKeys.DFS_NAMENODE_SHARED_EDITS_DIR_KEY,
           BKJMUtil.createJournalURI("/checkpointing" + journalCount++)
           .toString());
  BKJMUtil.addJournalManagerDefinition(conf);
  MiniDFSNNTopology topology = new MiniDFSNNTopology()
    .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
      .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10001))
      .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10002)));

  cluster = new MiniDFSCluster.Builder(conf)
    .nnTopology(topology)
    .numDataNodes(1)
    .manageNameDfsSharedDirs(false)
    .build();
  cluster.waitActive();

  nn0 = cluster.getNameNode(0);
  nn1 = cluster.getNameNode(1);
  fs = HATestUtil.configureFailoverFs(cluster, conf);

  cluster.transitionToActive(0);
}

Source File: TestBookKeeperAsHASharedDir.java From hadoop with Apache License 2.0

5 votes

private void assertCanStartHANameNodes(MiniDFSCluster cluster,
    Configuration conf, String path) throws ServiceFailedException,
    IOException, URISyntaxException, InterruptedException {
  // Now should be able to start both NNs. Pass "false" here so that we don't
  // try to waitActive on all NNs, since the second NN doesn't exist yet.
  cluster.restartNameNode(0, false);
  cluster.restartNameNode(1, true);

  // Make sure HA is working.
  cluster
      .getNameNode(0)
      .getRpcServer()
      .transitionToActive(
          new StateChangeRequestInfo(RequestSource.REQUEST_BY_USER));
  FileSystem fs = null;
  try {
    Path newPath = new Path(path);
    fs = HATestUtil.configureFailoverFs(cluster, conf);
    assertTrue(fs.mkdirs(newPath));
    HATestUtil.waitForStandbyToCatchUp(cluster.getNameNode(0),
        cluster.getNameNode(1));
    assertTrue(NameNodeAdapter.getFileInfo(cluster.getNameNode(1),
        newPath.toString(), false).isDir());
  } finally {
    if (fs != null) {
      fs.close();
    }
  }
}

Source File: TestBookKeeperAsHASharedDir.java From big-c with Apache License 2.0

5 votes

/**
 * Test simple HA failover usecase with BK
 */
@Test
public void testFailoverWithBK() throws Exception {
  MiniDFSCluster cluster = null;
  try {
    Configuration conf = new Configuration();
    conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
    conf.set(DFSConfigKeys.DFS_NAMENODE_SHARED_EDITS_DIR_KEY,
             BKJMUtil.createJournalURI("/hotfailover").toString());
    BKJMUtil.addJournalManagerDefinition(conf);

    cluster = new MiniDFSCluster.Builder(conf)
      .nnTopology(MiniDFSNNTopology.simpleHATopology())
      .numDataNodes(0)
      .manageNameDfsSharedDirs(false)
      .build();
    NameNode nn1 = cluster.getNameNode(0);
    NameNode nn2 = cluster.getNameNode(1);

    cluster.waitActive();
    cluster.transitionToActive(0);

    Path p = new Path("/testBKJMfailover");

    FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);

    fs.mkdirs(p);
    cluster.shutdownNameNode(0);

    cluster.transitionToActive(1);

    assertTrue(fs.exists(p));
  } finally {
    if (cluster != null) {
      cluster.shutdown();
    }
  }
}

Source File: TestBookKeeperAsHASharedDir.java From hadoop with Apache License 2.0

5 votes

/**
 * Test simple HA failover usecase with BK
 */
@Test
public void testFailoverWithBK() throws Exception {
  MiniDFSCluster cluster = null;
  try {
    Configuration conf = new Configuration();
    conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
    conf.set(DFSConfigKeys.DFS_NAMENODE_SHARED_EDITS_DIR_KEY,
             BKJMUtil.createJournalURI("/hotfailover").toString());
    BKJMUtil.addJournalManagerDefinition(conf);

    cluster = new MiniDFSCluster.Builder(conf)
      .nnTopology(MiniDFSNNTopology.simpleHATopology())
      .numDataNodes(0)
      .manageNameDfsSharedDirs(false)
      .build();
    NameNode nn1 = cluster.getNameNode(0);
    NameNode nn2 = cluster.getNameNode(1);

    cluster.waitActive();
    cluster.transitionToActive(0);

    Path p = new Path("/testBKJMfailover");

    FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);

    fs.mkdirs(p);
    cluster.shutdownNameNode(0);

    cluster.transitionToActive(1);

    assertTrue(fs.exists(p));
  } finally {
    if (cluster != null) {
      cluster.shutdown();
    }
  }
}

Source File: TestEditLogAutoroll.java From hadoop with Apache License 2.0

5 votes

@Before
public void setUp() throws Exception {
  conf = new Configuration();
  // Stall the standby checkpointer in two ways
  conf.setLong(DFS_NAMENODE_CHECKPOINT_PERIOD_KEY, Long.MAX_VALUE);
  conf.setLong(DFS_NAMENODE_CHECKPOINT_TXNS_KEY, 20);
  // Make it autoroll after 10 edits
  conf.setFloat(DFS_NAMENODE_EDIT_LOG_AUTOROLL_MULTIPLIER_THRESHOLD, 0.5f);
  conf.setInt(DFS_NAMENODE_EDIT_LOG_AUTOROLL_CHECK_INTERVAL_MS, 100);

  int retryCount = 0;
  while (true) {
    try {
      int basePort = 10060 + random.nextInt(100) * 2;
      MiniDFSNNTopology topology = new MiniDFSNNTopology()
          .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
              .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(basePort))
              .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(basePort + 1)));

      cluster = new MiniDFSCluster.Builder(conf)
          .nnTopology(topology)
          .numDataNodes(0)
          .build();
      cluster.waitActive();

      nn0 = cluster.getNameNode(0);
      fs = HATestUtil.configureFailoverFs(cluster, conf);

      cluster.transitionToActive(0);

      fs = cluster.getFileSystem(0);
      editLog = nn0.getNamesystem().getEditLog();
      ++retryCount;
      break;
    } catch (BindException e) {
      LOG.info("Set up MiniDFSCluster failed due to port conflicts, retry "
          + retryCount + " times");
    }
  }
}

Source File: TestDFSInotifyEventInputStream.java From hadoop with Apache License 2.0

5 votes

@Test(timeout = 120000)
public void testNNFailover() throws IOException, URISyntaxException,
    MissingEventsException {
  Configuration conf = new HdfsConfiguration();
  MiniQJMHACluster cluster = new MiniQJMHACluster.Builder(conf).build();

  try {
    cluster.getDfsCluster().waitActive();
    cluster.getDfsCluster().transitionToActive(0);
    DFSClient client = ((DistributedFileSystem) HATestUtil.configureFailoverFs
        (cluster.getDfsCluster(), conf)).dfs;
    DFSInotifyEventInputStream eis = client.getInotifyEventStream();
    for (int i = 0; i < 10; i++) {
      client.mkdirs("/dir" + i, null, false);
    }
    cluster.getDfsCluster().shutdownNameNode(0);
    cluster.getDfsCluster().transitionToActive(1);
    EventBatch batch = null;
    // we can read all of the edits logged by the old active from the new
    // active
    for (int i = 0; i < 10; i++) {
      batch = waitForNextEvents(eis);
      Assert.assertEquals(1, batch.getEvents().length);
      Assert.assertTrue(batch.getEvents()[0].getEventType() == Event.EventType.CREATE);
      Assert.assertTrue(((Event.CreateEvent) batch.getEvents()[0]).getPath().equals("/dir" +
          i));
    }
    Assert.assertTrue(eis.poll() == null);
  } finally {
    cluster.shutdown();
  }
}

Source File: TestDFSClientFailover.java From hadoop with Apache License 2.0

5 votes

/**
 * Test that the client doesn't ever try to DNS-resolve the logical URI.
 * Regression test for HADOOP-9150.
 */
@Test
public void testDoesntDnsResolveLogicalURI() throws Exception {
  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  NameService spyNS = spyOnNameService();
  String logicalHost = fs.getUri().getHost();
  Path qualifiedRoot = fs.makeQualified(new Path("/"));
  
  // Make a few calls against the filesystem.
  fs.getCanonicalServiceName();
  fs.listStatus(qualifiedRoot);
  
  // Ensure that the logical hostname was never resolved.
  Mockito.verify(spyNS, Mockito.never()).lookupAllHostAddr(Mockito.eq(logicalHost));
}

Source File: TestBookKeeperAsHASharedDir.java From big-c with Apache License 2.0

4 votes

/**
 * Test that two namenodes can't continue as primary
 */
@Test
public void testMultiplePrimariesStarted() throws Exception {
  Path p1 = new Path("/testBKJMMultiplePrimary");

  MiniDFSCluster cluster = null;
  try {
    Configuration conf = new Configuration();
    conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
    conf.set(DFSConfigKeys.DFS_NAMENODE_SHARED_EDITS_DIR_KEY,
             BKJMUtil.createJournalURI("/hotfailoverMultiple").toString());
    BKJMUtil.addJournalManagerDefinition(conf);

    cluster = new MiniDFSCluster.Builder(conf)
      .nnTopology(MiniDFSNNTopology.simpleHATopology())
      .numDataNodes(0)
      .manageNameDfsSharedDirs(false)
      .checkExitOnShutdown(false)
      .build();
    NameNode nn1 = cluster.getNameNode(0);
    NameNode nn2 = cluster.getNameNode(1);
    cluster.waitActive();
    cluster.transitionToActive(0);

    FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
    fs.mkdirs(p1);
    nn1.getRpcServer().rollEditLog();
    cluster.transitionToActive(1);
    fs = cluster.getFileSystem(0); // get the older active server.

    try {
      fs.delete(p1, true);
      fail("Log update on older active should cause it to exit");
    } catch (RemoteException re) {
      assertTrue(re.getClassName().contains("ExitException"));
    }
  } finally {
    if (cluster != null) {
      cluster.shutdown();
    }
  }
}

Source File: TestBookKeeperAsHASharedDir.java From hadoop with Apache License 2.0

4 votes

/**
 * Test that two namenodes can't continue as primary
 */
@Test
public void testMultiplePrimariesStarted() throws Exception {
  Path p1 = new Path("/testBKJMMultiplePrimary");

  MiniDFSCluster cluster = null;
  try {
    Configuration conf = new Configuration();
    conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
    conf.set(DFSConfigKeys.DFS_NAMENODE_SHARED_EDITS_DIR_KEY,
             BKJMUtil.createJournalURI("/hotfailoverMultiple").toString());
    BKJMUtil.addJournalManagerDefinition(conf);

    cluster = new MiniDFSCluster.Builder(conf)
      .nnTopology(MiniDFSNNTopology.simpleHATopology())
      .numDataNodes(0)
      .manageNameDfsSharedDirs(false)
      .checkExitOnShutdown(false)
      .build();
    NameNode nn1 = cluster.getNameNode(0);
    NameNode nn2 = cluster.getNameNode(1);
    cluster.waitActive();
    cluster.transitionToActive(0);

    FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
    fs.mkdirs(p1);
    nn1.getRpcServer().rollEditLog();
    cluster.transitionToActive(1);
    fs = cluster.getFileSystem(0); // get the older active server.

    try {
      fs.delete(p1, true);
      fail("Log update on older active should cause it to exit");
    } catch (RemoteException re) {
      assertTrue(re.getClassName().contains("ExitException"));
    }
  } finally {
    if (cluster != null) {
      cluster.shutdown();
    }
  }
}

Java Code Examples for org.apache.hadoop.hdfs.server.namenode.ha.HATestUtil#configureFailoverFs()