org.apache.hadoop.hbase.replication
Class ReplicationTrackerZKImpl.OtherRegionServerWatcher

java.lang.Object
  org.apache.hadoop.hbase.zookeeper.ZooKeeperListener
      org.apache.hadoop.hbase.replication.ReplicationTrackerZKImpl.OtherRegionServerWatcher

Enclosing class:

ReplicationTrackerZKImpl

public class ReplicationTrackerZKImpl.OtherRegionServerWatcher
extends ZooKeeperListener

Watcher used to be notified of the other region server's death in the local cluster. It initiates the process to transfer the queues if it is able to grab the lock.

Field Summary

Fields inherited from class org.apache.hadoop.hbase.zookeeper.ZooKeeperListener

watcher

Constructor Summary

ReplicationTrackerZKImpl.OtherRegionServerWatcher(ZooKeeperWatcher watcher)
Construct a ZooKeeper event listener.

Method Summary

void	nodeChildrenChanged(String path) Called when an existing node has a child node added or removed.
void	nodeCreated(String path) Called when a new node has been created.
void	nodeDeleted(String path) Called when a node has been deleted

Methods inherited from class org.apache.hadoop.hbase.zookeeper.ZooKeeperListener

getWatcher, nodeDataChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

ReplicationTrackerZKImpl.OtherRegionServerWatcher

public ReplicationTrackerZKImpl.OtherRegionServerWatcher(ZooKeeperWatcher watcher)

Construct a ZooKeeper event listener.

Method Detail

nodeCreated

public void nodeCreated(String path)

Called when a new node has been created.

Overrides:

nodeCreated in class ZooKeeperListener

Parameters:

path - full path of the new node

nodeDeleted

public void nodeDeleted(String path)

Called when a node has been deleted

Overrides:

nodeDeleted in class ZooKeeperListener

Parameters:

path - full path of the deleted node

nodeChildrenChanged

public void nodeChildrenChanged(String path)

Called when an existing node has a child node added or removed.

Overrides:

nodeChildrenChanged in class ZooKeeperListener

Parameters:

path - full path of the node whose children have changed