org.apache.hadoop.hbase.replication

Class ReplicationTrackerZKImpl.OtherRegionServerWatcher

java.lang.Object

org.apache.hadoop.hbase.zookeeper.ZKListener

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

Enclosing class:

ReplicationTrackerZKImpl

public class ReplicationTrackerZKImpl.OtherRegionServerWatcher
extends org.apache.hadoop.hbase.zookeeper.ZKListener

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.ZKListener

watcher

Constructor Summary

Constructors

Constructor and Description
OtherRegionServerWatcher(org.apache.hadoop.hbase.zookeeper.ZKWatcher watcher) Construct a ZooKeeper event listener.

Method Summary

Modifier and Type	Method and Description
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.ZKListener

getWatcher, nodeDataChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

OtherRegionServerWatcher

public OtherRegionServerWatcher(org.apache.hadoop.hbase.zookeeper.ZKWatcher 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 org.apache.hadoop.hbase.zookeeper.ZKListener

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 org.apache.hadoop.hbase.zookeeper.ZKListener

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 org.apache.hadoop.hbase.zookeeper.ZKListener

Parameters:

path - full path of the node whose children have changed