Пример #1
0
  /**
   * Test for {@link DFSUtil#getNNServiceRpcAddresses(Configuration)} {@link
   * DFSUtil#getNameServiceIdFromAddress(Configuration, InetSocketAddress, String...)
   * (Configuration)}
   */
  @Test
  public void testMultipleNamenodes() throws IOException {
    HdfsConfiguration conf = new HdfsConfiguration();
    conf.set(DFS_NAMESERVICES, "nn1,nn2");
    // Test - configured list of namenodes are returned
    final String NN1_ADDRESS = "localhost:9000";
    final String NN2_ADDRESS = "localhost:9001";
    final String NN3_ADDRESS = "localhost:9002";
    conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "nn1"), NN1_ADDRESS);
    conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "nn2"), NN2_ADDRESS);

    Map<String, Map<String, InetSocketAddress>> nnMap = DFSUtil.getNNServiceRpcAddresses(conf);
    assertEquals(2, nnMap.size());

    Map<String, InetSocketAddress> nn1Map = nnMap.get("nn1");
    assertEquals(1, nn1Map.size());
    InetSocketAddress addr = nn1Map.get(null);
    assertEquals("localhost", addr.getHostName());
    assertEquals(9000, addr.getPort());

    Map<String, InetSocketAddress> nn2Map = nnMap.get("nn2");
    assertEquals(1, nn2Map.size());
    addr = nn2Map.get(null);
    assertEquals("localhost", addr.getHostName());
    assertEquals(9001, addr.getPort());

    // Test - can look up nameservice ID from service address
    checkNameServiceId(conf, NN1_ADDRESS, "nn1");
    checkNameServiceId(conf, NN2_ADDRESS, "nn2");
    checkNameServiceId(conf, NN3_ADDRESS, null);

    // HA is not enabled in a purely federated config
    assertFalse(HAUtil.isHAEnabled(conf, "nn1"));
    assertFalse(HAUtil.isHAEnabled(conf, "nn2"));
  }
Пример #2
0
  /** Tests to ensure default namenode is used as fallback */
  @Test
  public void testDefaultNamenode() throws IOException {
    HdfsConfiguration conf = new HdfsConfiguration();
    final String hdfs_default = "hdfs://localhost:9999/";
    conf.set(FS_DEFAULT_NAME_KEY, hdfs_default);
    // If DFS_FEDERATION_NAMESERVICES is not set, verify that
    // default namenode address is returned.
    Map<String, Map<String, InetSocketAddress>> addrMap = DFSUtil.getNNServiceRpcAddresses(conf);
    assertEquals(1, addrMap.size());

    Map<String, InetSocketAddress> defaultNsMap = addrMap.get(null);
    assertEquals(1, defaultNsMap.size());

    assertEquals(9999, defaultNsMap.get(null).getPort());
  }
Пример #3
0
  /**
   * Tests for empty configuration, an exception is thrown from {@link
   * DFSUtil#getNNServiceRpcAddresses(Configuration)} {@link
   * DFSUtil#getBackupNodeAddresses(Configuration)} {@link
   * DFSUtil#getSecondaryNameNodeAddresses(Configuration)}
   */
  @Test
  public void testEmptyConf() {
    HdfsConfiguration conf = new HdfsConfiguration(false);
    try {
      Map<String, Map<String, InetSocketAddress>> map = DFSUtil.getNNServiceRpcAddresses(conf);
      fail("Expected IOException is not thrown, result was: " + DFSUtil.addressMapToString(map));
    } catch (IOException expected) {
      /** Expected */
    }

    try {
      Map<String, Map<String, InetSocketAddress>> map = DFSUtil.getBackupNodeAddresses(conf);
      fail("Expected IOException is not thrown, result was: " + DFSUtil.addressMapToString(map));
    } catch (IOException expected) {
      /** Expected */
    }

    try {
      Map<String, Map<String, InetSocketAddress>> map = DFSUtil.getSecondaryNameNodeAddresses(conf);
      fail("Expected IOException is not thrown, result was: " + DFSUtil.addressMapToString(map));
    } catch (IOException expected) {
      /** Expected */
    }
  }