Examples of MiniDFSNNTopology

org.apache.hadoop.hdfs.MiniDFSNNTopology
This class is used to specify the setup of namenodes when instantiating a MiniDFSCluster. It consists of a set of nameservices, each of which may have one or more namenodes (in the case of HA)

Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

  @Test
  public void test() throws Exception {
    Configuration conf = new Configuration();
    conf.setBoolean(DFSConfigKeys.DFS_WEBHDFS_ENABLED_KEY, true);


    MiniDFSNNTopology topo = new MiniDFSNNTopology()
        .addNameservice(new MiniDFSNNTopology.NSConf(LOGICAL_NAME).addNN(
            new MiniDFSNNTopology.NNConf("nn1")).addNN(
            new MiniDFSNNTopology.NNConf("nn2")));


    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).nnTopology(topo)

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Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

    }
  }


  @Test(timeout = 20000)
  public void testClusterIdMismatchAtStartupWithHA() throws Exception {
    MiniDFSNNTopology top = new MiniDFSNNTopology()
      .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
        .addNN(new MiniDFSNNTopology.NNConf("nn0"))
        .addNN(new MiniDFSNNTopology.NNConf("nn1")))
      .addNameservice(new MiniDFSNNTopology.NSConf("ns2")
        .addNN(new MiniDFSNNTopology.NNConf("nn2").setClusterId("bad-cid"))
        .addNN(new MiniDFSNNTopology.NNConf("nn3").setClusterId("bad-cid")));


    top.setFederation(true);


    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).nnTopology(top)
        .numDataNodes(0).build();
    
    try {

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Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

    }
  }


  @Test
  public void testDNWithInvalidStorageWithHA() throws Exception {
    MiniDFSNNTopology top = new MiniDFSNNTopology()
      .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
        .addNN(new MiniDFSNNTopology.NNConf("nn0").setClusterId("cluster-1"))
        .addNN(new MiniDFSNNTopology.NNConf("nn1").setClusterId("cluster-1")));


    top.setFederation(true);


    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).nnTopology(top)
        .numDataNodes(0).build();
    try {
      cluster.startDataNodes(conf, 1, true, null, null);

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Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

    // Roll every 1s
    conf.setInt(DFSConfigKeys.DFS_HA_LOGROLL_PERIOD_KEY, 1);
    conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
    
    // Have to specify IPC ports so the NNs can talk to each other.
    MiniDFSNNTopology topology = new MiniDFSNNTopology()
      .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
        .addNN(new MiniDFSNNTopology.NNConf("nn1").setIpcPort(10001))
        .addNN(new MiniDFSNNTopology.NNConf("nn2").setIpcPort(10002)));


    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)

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Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

  @Test
  public void testHaFsck() throws Exception {
    Configuration conf = new Configuration();
    
    // need some HTTP ports
    MiniDFSNNTopology topology = new MiniDFSNNTopology()
      .addNameservice(new MiniDFSNNTopology.NSConf("ha-nn-uri-0")
        .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10001))
        .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10002)));
    
    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)

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Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

    conf.setInt(DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_TXNS_KEY, 1);
    conf.setInt(DFSConfigKeys.DFS_NAMENODE_NUM_CHECKPOINTS_RETAINED_KEY, 10);
    conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
    HAUtil.setAllowStandbyReads(conf, true);
    
    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)

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Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

  
  @Before
  public void setupCluster() throws IOException {
    Configuration conf = new Configuration();


    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)

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Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

    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)

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Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

    try {
      Configuration conf = new Configuration();
      HAUtil.setAllowStandbyReads(conf, true);
      conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);


      MiniDFSNNTopology topology = MiniDFSNNTopology.simpleHATopology();
      cluster = new MiniDFSCluster.Builder(conf).nnTopology(topology)
          .numDataNodes(0).build();
      cluster.waitActive();
      // Shutdown and clear the current filebased shared dir.
      cluster.shutdownNameNodes();

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Examples of org.apache.hadoop.hdfs.MiniDFSNNTopology

    conf = new Configuration();
    conf.setInt(DFSConfigKeys.DFS_HA_LOGROLL_PERIOD_KEY, 1);
    conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
    HAUtil.setAllowStandbyReads(conf, true);
    
    MiniDFSNNTopology topology = MiniDFSNNTopology.simpleHATopology();
    
    cluster = new MiniDFSCluster.Builder(conf)
      .nnTopology(topology)
      .numDataNodes(0)
      .build();

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