Examples of org.apache.accumulo.core.client.ZooKeeperInstance

org.apache.accumulo.core.client.ZooKeeperInstance

An implementation of instance that looks in zookeeper to find information needed to connect to an instance of accumulo.
The advantage of using zookeeper to obtain information about accumulo is that zookeeper is highly available, very responsive, and supports caching.
Because it is possible for multiple instances of accumulo to share a single set of zookeeper servers, all constructors require an accumulo instance name. If you do not know the instance names then run accumulo org.apache.accumulo.server.util.ListInstances on an accumulo server.

  public static TemporaryFolder folder = new TemporaryFolder();
  private MiniAccumuloCluster accumulo;
  private String secret = "secret";
  
  Connector getConnector() throws AccumuloException, AccumuloSecurityException {
    ZooKeeperInstance zki = new ZooKeeperInstance(accumulo.getInstanceName(), accumulo.getZooKeepers());
    return zki.getConnector("root", new PasswordToken(secret));
  }

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  private ChunkInputStream cis;
  Scanner scanner;
  
  public FileDataQuery(String instanceName, String zooKeepers, String user, AuthenticationToken token, String tableName, Authorizations auths) throws AccumuloException,
      AccumuloSecurityException, TableNotFoundException {
    ZooKeeperInstance instance = new ZooKeeperInstance(instanceName, zooKeepers);
    conn = instance.getConnector(user, token);
    lastRefs = new ArrayList<Entry<Key,Value>>();
    cis = new ChunkInputStream();
    scanner = conn.createScanner(tableName, auths);
  }

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  }


  @Test
  public void testOfflineTableWithoutCache() throws Exception {


    ZooKeeperInstance instance = new ZooKeeperInstance(cluster.getInstanceName(), cluster.getZooKeepers());
    Connector connector = instance.getConnector("root", password);


    BatchWriterConfig config = new BatchWriterConfig();


    TCredentials creds = CredentialHelper.create("root", password, instance.getInstanceID());
    MultiTableBatchWriter mtbw = new MultiTableBatchWriterImpl(instance, creds, config, 0, TimeUnit.SECONDS);
    boolean mutationsRejected = false;


    try {
      final String table1 = "testOfflineTableWithoutCache_table1", table2 = "testOfflineTableWithoutCache_table2";

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public class MetadataBatchScanTest {
  
  public static void main(String[] args) throws Exception {
    
    final Connector connector = new ZooKeeperInstance("acu14", "localhost")
        .getConnector(SecurityConstants.SYSTEM_PRINCIPAL, SecurityConstants.getSystemToken());
    
    TreeSet<Long> splits = new TreeSet<Long>();
    Random r = new Random(42);

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  public static Instance getInstance(Class<?> implementingClass, Configuration conf) {
    String instanceType = conf.get(enumToConfKey(implementingClass, InstanceOpts.TYPE), "");
    if ("MockInstance".equals(instanceType))
      return new MockInstance(conf.get(enumToConfKey(implementingClass, InstanceOpts.NAME)));
    else if ("ZooKeeperInstance".equals(instanceType)) {
      return new ZooKeeperInstance(conf.get(enumToConfKey(implementingClass, InstanceOpts.NAME)), conf.get(enumToConfKey(implementingClass,
          InstanceOpts.ZOO_KEEPERS)));
    } else if (instanceType.isEmpty())
      throw new IllegalStateException("Instance has not been configured for " + implementingClass.getSimpleName());
    else
      throw new IllegalStateException("Unrecognized instance type " + instanceType);

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    if (null == zooKeepers) {
      return null;
    }
    
    return new ZooKeeperInstance(getInstanceName(), getZooKeepers());
  }

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  }
  
  protected static Instance getInstance(Configuration conf) {
    if (conf.getBoolean(MOCK, false))
      return new MockInstance(conf.get(INSTANCE_NAME));
    return new ZooKeeperInstance(conf.get(INSTANCE_NAME), conf.get(ZOOKEEPERS));
  }

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    String pass = args[3];
    String dataTable = args[4];
    ColumnVisibility colvis = new ColumnVisibility(args[5]);
    int chunkSize = Integer.parseInt(args[6]);


    Connector conn = new ZooKeeperInstance(instance, zooKeepers).getConnector(user, pass.getBytes());
    if (!conn.tableOperations().exists(dataTable)) {
      conn.tableOperations().create(dataTable);
      conn.tableOperations().attachIterator(dataTable, new IteratorSetting(1, ChunkCombiner.class));
    }
    BatchWriter bw = conn.createBatchWriter(dataTable, 50000000, 300000l, 4);

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  /**
   * @return The Accumulo instance.
   */
  protected static Instance getInstance(Configuration conf) {
    return new ZooKeeperInstance(conf.get(INSTANCE_NAME), conf.get(ZOOKEEPERS));
  }

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      System.err.println("Usage: " + FindOfflineTablets.class.getName() + " <instance> <zookeepers>");
      System.exit(1);
    }
    String instance = args[0];
    String keepers = args[1];
    Instance zooInst = new ZooKeeperInstance(instance, keepers);
    MetaDataTableScanner rootScanner = new MetaDataTableScanner(zooInst, SecurityConstants.getSystemCredentials(),
        Constants.ROOT_TABLET_EXTENT.toMetadataRange());
    MetaDataTableScanner metaScanner = new MetaDataTableScanner(zooInst, SecurityConstants.getSystemCredentials(), Constants.NON_ROOT_METADATA_KEYSPACE);
    @SuppressWarnings("unchecked")
    Iterator<TabletLocationState> scanner = (Iterator<TabletLocationState>) new IteratorChain(rootScanner, metaScanner);

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