org.apache.hadoop.hbase.replication
Class ReplicationTrackerZKImpl

java.lang.Object
  org.apache.hadoop.hbase.replication.ReplicationStateZKBase
      org.apache.hadoop.hbase.replication.ReplicationTrackerZKImpl

All Implemented Interfaces:

ReplicationTracker

public class ReplicationTrackerZKImpl
extends ReplicationStateZKBase
implements ReplicationTracker

This class is a Zookeeper implementation of the ReplicationTracker interface. This class is responsible for handling replication events that are defined in the ReplicationListener interface.

Nested Class Summary

class	ReplicationTrackerZKImpl.OtherRegionServerWatcher Watcher used to be notified of the other region server's death in the local cluster.
class	ReplicationTrackerZKImpl.PeersWatcher Watcher used to follow the creation and deletion of peer clusters.

Field Summary

Fields inherited from class org.apache.hadoop.hbase.replication.ReplicationStateZKBase

abortable, conf, DISABLED_ZNODE_BYTES, ENABLED_ZNODE_BYTES, ourClusterKey, peerStateNodeName, peersZNode, queuesZNode, replicationZNode, zookeeper

Constructor Summary

ReplicationTrackerZKImpl(ZooKeeperWatcher zookeeper, ReplicationPeers replicationPeers, org.apache.hadoop.conf.Configuration conf, Abortable abortable, Stoppable stopper)

Method Summary

List<String>	getListOfRegionServers() Return a snapshot of the current region servers.
void	registerListener(ReplicationListener listener) Register a replication listener to receive replication events.
void	removeListener(ReplicationListener listener)

Methods inherited from class org.apache.hadoop.hbase.replication.ReplicationStateZKBase

getListOfReplicators, isPeerPath, peerExists, toByteArray

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReplicationTrackerZKImpl

public ReplicationTrackerZKImpl(ZooKeeperWatcher zookeeper,
                                ReplicationPeers replicationPeers,
                                org.apache.hadoop.conf.Configuration conf,
                                Abortable abortable,
                                Stoppable stopper)

Method Detail

registerListener

public void registerListener(ReplicationListener listener)

Description copied from interface: ReplicationTracker

Register a replication listener to receive replication events.

Specified by:

registerListener in interface ReplicationTracker

removeListener

public void removeListener(ReplicationListener listener)

Specified by:

removeListener in interface ReplicationTracker

getListOfRegionServers

public List<String> getListOfRegionServers()

Return a snapshot of the current region servers.

Specified by:

getListOfRegionServers in interface ReplicationTracker

Returns:

List of region servers.