Package org.apache.accumulo.core.client

Class ZooKeeperInstance

java.lang.Object
org.apache.accumulo.core.client.ZooKeeperInstance
All Implemented Interfaces:
Instance
Direct Known Subclasses:
MiniAccumuloInstance
@Deprecated(since="2.0.0") public class ZooKeeperInstance extends Object implements Instance
Deprecated.
since 2.0.0, Use Accumulo.newClient() instead
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.

  • Constructor Details

    • ZooKeeperInstance

      public ZooKeeperInstance(String instanceName, String zooKeepers)
      Deprecated.
      Parameters:
      instanceName - The name of specific accumulo instance. This is set at initialization time.
      zooKeepers - A comma separated list of zoo keeper server locations. Each location can contain an optional port, of the format host:port.

    • ZooKeeperInstance

      public ZooKeeperInstance(ClientConfiguration config)
      Deprecated.
      Parameters:
      config - Client configuration for specifying connection options. See ClientConfiguration which extends Configuration with convenience methods specific to Accumulo.
      Since:
      1.9.0

  • Method Details

    • getInstanceID

      public String getInstanceID()
      Deprecated.
      Description copied from interface: Instance
      Returns a unique string that identifies this instance of accumulo.
      Specified by:
      getInstanceID in interface Instance
      Returns:
      a UUID

    • getMasterLocations

      public List<String> getMasterLocations()
      Deprecated.
      Description copied from interface: Instance
      Returns the location(s) of the accumulo manager and any redundant servers.
      Specified by:
      getMasterLocations in interface Instance
      Returns:
      a list of locations in "hostname:port" form

    • getRootTabletLocation

      public String getRootTabletLocation()
      Deprecated.
      Description copied from interface: Instance
      Returns the location of the tablet server that is serving the root tablet.
      Specified by:
      getRootTabletLocation in interface Instance
      Returns:
      location in "hostname:port" form

    • getInstanceName

      public String getInstanceName()
      Deprecated.
      Description copied from interface: Instance
      Returns the instance name given at system initialization time.
      Specified by:
      getInstanceName in interface Instance
      Returns:
      current instance name

    • getZooKeepers

      public String getZooKeepers()
      Deprecated.
      Description copied from interface: Instance
      Returns a comma-separated list of zookeeper servers the instance is using.
      Specified by:
      getZooKeepers in interface Instance
      Returns:
      the zookeeper servers this instance is using in "hostname:port" form

    • getZooKeepersSessionTimeOut

      public int getZooKeepersSessionTimeOut()
      Deprecated.
      Description copied from interface: Instance
      Returns the zookeeper connection timeout.
      Specified by:
      getZooKeepersSessionTimeOut in interface Instance
      Returns:
      the configured timeout to connect to zookeeper

    • getConnector

      public Connector getConnector(String principal, AuthenticationToken token) throws AccumuloException, AccumuloSecurityException
      Deprecated.
      Description copied from interface: Instance
      Returns a connection to this instance of accumulo.
      Specified by:
      getConnector in interface Instance
      Parameters:
      principal - a valid accumulo user
      token - Use the token type configured for the Accumulo instance you are connecting to. An Accumulo instance with default configurations will use PasswordToken
      Throws:
      AccumuloException
      AccumuloSecurityException

    • toString

      public String toString()
      Deprecated.
      Overrides:
      toString in class Object