org.apache.hadoop.hdfs.DFSTestUtil#formatNameNode

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

6 votes

/**
 * Test that FSNamesystem#clear clears all leases.
 */
@Test
public void testFSNamespaceClearLeases() throws Exception {
  Configuration conf = new HdfsConfiguration();
  File nameDir = new File(MiniDFSCluster.getBaseDirectory(), "name");
  conf.set(DFS_NAMENODE_NAME_DIR_KEY, nameDir.getAbsolutePath());

  NameNode.initMetrics(conf, NamenodeRole.NAMENODE);
  DFSTestUtil.formatNameNode(conf);
  FSNamesystem fsn = FSNamesystem.loadFromDisk(conf);
  LeaseManager leaseMan = fsn.getLeaseManager();
  leaseMan.addLease("client1", "importantFile");
  assertEquals(1, leaseMan.countLease());
  fsn.clear();
  leaseMan = fsn.getLeaseManager();
  assertEquals(0, leaseMan.countLease());
}

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

6 votes

/**
 * Tests setting the rpc port to the same as the web port to test that 
 * an exception
 * is thrown when trying to re-use the same port
 */
@Test(expected = BindException.class, timeout = 300000)
public void testThatMatchingRPCandHttpPortsThrowException() 
    throws IOException {

  NameNode nameNode = null;
  try {
    Configuration conf = new HdfsConfiguration();
    File nameDir = new File(MiniDFSCluster.getBaseDirectory(), "name");
    conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
        nameDir.getAbsolutePath());

    Random rand = new Random();
    final int port = 30000 + rand.nextInt(30000);

    // set both of these to the same port. It should fail.
    FileSystem.setDefaultUri(conf, "hdfs://localhost:" + port);
    conf.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY, "127.0.0.1:" + port);
    DFSTestUtil.formatNameNode(conf);
    nameNode = new NameNode(conf);
  } finally {
    if (nameNode != null) {
      nameNode.stop();
    }
  }
}

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

5 votes

@Test (timeout=30000)
public void testSaveWhileEditsRolled() throws Exception {
  Configuration conf = getConf();
  NameNode.initMetrics(conf, NamenodeRole.NAMENODE);
  DFSTestUtil.formatNameNode(conf);
  FSNamesystem fsn = FSNamesystem.loadFromDisk(conf);

  try {
    doAnEdit(fsn, 1);
    CheckpointSignature sig = fsn.rollEditLog();
    LOG.warn("Checkpoint signature: " + sig);
    // Do another edit
    doAnEdit(fsn, 2);

    // Save namespace
    fsn.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
    fsn.saveNamespace();

    // Now shut down and restart the NN
    fsn.close();
    fsn = null;

    // Start a new namesystem, which should be able to recover
    // the namespace from the previous incarnation.
    fsn = FSNamesystem.loadFromDisk(conf);

    // Make sure the image loaded including our edits.
    checkEditExists(fsn, 1);
    checkEditExists(fsn, 2);
  } finally {
    if (fsn != null) {
      fsn.close();
    }
  }
}

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

5 votes

/**
 * Tests that an edits log created using CreateEditsLog is valid and can be
 * loaded successfully by a namenode.
 */
@Test(timeout=60000)
public void testCanLoadCreatedEditsLog() throws Exception {
  // Format namenode.
  HdfsConfiguration conf = new HdfsConfiguration();
  File nameDir = new File(HDFS_DIR, "name");
  conf.set(DFS_NAMENODE_NAME_DIR_KEY, Util.fileAsURI(nameDir).toString());
  DFSTestUtil.formatNameNode(conf);

  // Call CreateEditsLog and move the resulting edits to the name dir.
  CreateEditsLog.main(new String[] { "-f", "1000", "0", "1", "-d",
    TEST_DIR.getAbsolutePath() });
  Path editsWildcard = new Path(TEST_DIR.getAbsolutePath(), "*");
  FileContext localFc = FileContext.getLocalFSFileContext();
  for (FileStatus edits: localFc.util().globStatus(editsWildcard)) {
    Path src = edits.getPath();
    Path dst = new Path(new File(nameDir, "current").getAbsolutePath(),
      src.getName());
    localFc.rename(src, dst);
  }

  // Start a namenode to try to load the edits.
  cluster = new MiniDFSCluster.Builder(conf)
    .format(false)
    .manageNameDfsDirs(false)
    .waitSafeMode(false)
    .build();
  cluster.waitClusterUp();

  // Test successful, because no exception thrown.
}

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

5 votes

/**
 * This test runs all benchmarks defined in {@link NNThroughputBenchmark}.
 */
@Test
public void testNNThroughput() throws Exception {
  Configuration conf = new HdfsConfiguration();
  File nameDir = new File(MiniDFSCluster.getBaseDirectory(), "name");
  conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
      nameDir.getAbsolutePath());
  FileSystem.setDefaultUri(conf, "hdfs://localhost:" + 0);
  conf.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY, "0.0.0.0:0");
  DFSTestUtil.formatNameNode(conf);
  String[] args = new String[] {"-op", "all"};
  NNThroughputBenchmark.runBenchmark(conf, Arrays.asList(args));
}

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

5 votes

/**
 * HDFS-3013: NameNode format command doesn't pick up
 * dfs.namenode.name.dir.NameServiceId configuration.
 */
@Test(timeout = 300000)
public void testGenericKeysForNameNodeFormat()
    throws IOException {
  Configuration conf = new HdfsConfiguration();

  // Set ephemeral ports 
  conf.set(DFSConfigKeys.DFS_NAMENODE_RPC_ADDRESS_KEY,
      "127.0.0.1:0");
  conf.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY,
      "127.0.0.1:0");
  
  conf.set(DFSConfigKeys.DFS_NAMESERVICES, "ns1");
  
  // Set a nameservice-specific configuration for name dir
  File dir = new File(MiniDFSCluster.getBaseDirectory(),
      "testGenericKeysForNameNodeFormat");
  if (dir.exists()) {
    FileUtil.fullyDelete(dir);
  }
  conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY + ".ns1",
      dir.getAbsolutePath());
  
  // Format and verify the right dir is formatted.
  DFSTestUtil.formatNameNode(conf);
  GenericTestUtils.assertExists(dir);

  // Ensure that the same dir is picked up by the running NN
  NameNode nameNode = new NameNode(conf);
  nameNode.stop();
}

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

5 votes

/**
 * Tests setting the rpc port to a different as the web port that an 
 * exception is NOT thrown 
 */
@Test(timeout = 300000)
public void testThatDifferentRPCandHttpPortsAreOK() 
    throws IOException {

  Configuration conf = new HdfsConfiguration();
  File nameDir = new File(MiniDFSCluster.getBaseDirectory(), "name");
  conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
      nameDir.getAbsolutePath());

  Random rand = new Random();

  // A few retries in case the ports we choose are in use.
  for (int i = 0; i < 5; ++i) {
    final int port1 = 30000 + rand.nextInt(10000);
    final int port2 = port1 + 1 + rand.nextInt(10000);

    FileSystem.setDefaultUri(conf, "hdfs://localhost:" + port1);
    conf.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY, "127.0.0.1:" + port2);
    DFSTestUtil.formatNameNode(conf);
    NameNode nameNode = null;

    try {
      nameNode = new NameNode(conf); // should be OK!
      break;
    } catch(BindException be) {
      continue;     // Port in use? Try another.
    } finally {
      if (nameNode != null) {
        nameNode.stop();
      }
    }
  }
}

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

5 votes

/**
 * Tests setting the rpc port to a different as the web port that an 
 * exception is NOT thrown 
 */
@Test(timeout = 300000)
public void testThatDifferentRPCandHttpPortsAreOK() 
    throws IOException {

  Configuration conf = new HdfsConfiguration();
  File nameDir = new File(MiniDFSCluster.getBaseDirectory(), "name");
  conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
      nameDir.getAbsolutePath());

  Random rand = new Random();

  // A few retries in case the ports we choose are in use.
  for (int i = 0; i < 5; ++i) {
    final int port1 = 30000 + rand.nextInt(10000);
    final int port2 = port1 + 1 + rand.nextInt(10000);

    FileSystem.setDefaultUri(conf, "hdfs://localhost:" + port1);
    conf.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY, "127.0.0.1:" + port2);
    DFSTestUtil.formatNameNode(conf);
    NameNode nameNode = null;

    try {
      nameNode = new NameNode(conf); // should be OK!
      break;
    } catch(BindException be) {
      continue;     // Port in use? Try another.
    } finally {
      if (nameNode != null) {
        nameNode.stop();
      }
    }
  }
}