Examples of org.apache.hadoop.hbase.ZKNamespaceManager

org.apache.hadoop.hbase.ZKNamespaceManager
Class servers two purposes: 1. Broadcast NamespaceDescriptor information via ZK (Done by the Master) 2. Consume broadcasted NamespaceDescriptor changes (Done by the RegionServers)


    // Now check if the table is assigned, if not then fail fast
    if (isTableAssigned()) {
      try {
        nsTable = new HTable(conf, TableName.NAMESPACE_TABLE_NAME);
        zkNamespaceManager = new ZKNamespaceManager(masterServices.getZooKeeper());
        zkNamespaceManager.start();


        if (get(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE.getName()) == null) {
          create(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE);
        }

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    // Now check if the table is assigned, if not then fail fast
    if (isTableAssigned()) {
      try {
        nsTable = new HTable(conf, TableName.NAMESPACE_TABLE_NAME);
        zkNamespaceManager = new ZKNamespaceManager(masterServices.getZooKeeper());
        zkNamespaceManager.start();


        if (get(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE.getName()) == null) {
          create(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE);
        }

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      }
    } catch (InterruptedException e) {
      throw new IOException("Wait for namespace table assignment interrupted", e);
    }
    table = new HTable(conf, tableName);
    zkNamespaceManager = new ZKNamespaceManager(masterServices.getZooKeeper());
    zkNamespaceManager.start();


    if (get(NamespaceDescriptor.DEFAULT_NAMESPACE.getName()) == null) {
      create(NamespaceDescriptor.DEFAULT_NAMESPACE);
    }

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    // Now check if the table is assigned, if not then fail fast
    if (isTableAssigned()) {
      try {
        nsTable = new HTable(conf, TableName.NAMESPACE_TABLE_NAME);
        zkNamespaceManager = new ZKNamespaceManager(masterServices.getZooKeeper());
        zkNamespaceManager.start();


        if (get(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE.getName()) == null) {
          create(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE);
        }

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    // Now check if the table is assigned, if not then fail fast
    if (isTableAssigned() && isTableEnabled()) {
      try {
        nsTable = new HTable(conf, TableName.NAMESPACE_TABLE_NAME);
        zkNamespaceManager = new ZKNamespaceManager(masterServices.getZooKeeper());
        zkNamespaceManager.start();


        if (get(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE.getName()) == null) {
          create(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE);
        }

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    // Now check if the table is assigned, if not then fail fast
    if (isTableAssigned()) {
      try {
        nsTable = new HTable(conf, TableName.NAMESPACE_TABLE_NAME);
        zkNamespaceManager = new ZKNamespaceManager(masterServices.getZooKeeper());
        zkNamespaceManager.start();


        if (get(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE.getName()) == null) {
          create(nsTable, NamespaceDescriptor.DEFAULT_NAMESPACE);
        }

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Related Classes of org.apache.hadoop.hbase.ZKNamespaceManager

org.apache.hadoop.hbase.master.TableNamespaceManager

java.io.IOException

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