org.apache.hadoop.hbase.zookeeper

Class RegionServerAddressTracker

java.lang.Object

org.apache.hadoop.hbase.zookeeper.ZKListener

org.apache.hadoop.hbase.zookeeper.RegionServerAddressTracker

@InterfaceAudience.Private
public class RegionServerAddressTracker
extends ZKListener

Class for tracking the region servers for a cluster.

Field Summary

Fields

Modifier and Type	Field and Description
private Abortable	abortable
private static org.slf4j.Logger	LOG
private List<ServerName>	regionServers

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

watcher

Constructor Summary

Constructors

Constructor and Description
RegionServerAddressTracker(ZKWatcher watcher, Abortable abortable)

Method Summary

Modifier and Type	Method and Description
List<ServerName>	getRegionServers()
private void	loadRegionServerList()
void	nodeChildrenChanged(String path) Called when an existing node has a child node added or removed.

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

getWatcher, nodeCreated, nodeDataChanged, nodeDeleted

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

regionServers

private volatile List<ServerName> regionServers

abortable

private final Abortable abortable

Constructor Detail

RegionServerAddressTracker

public RegionServerAddressTracker(ZKWatcher watcher,
                                  Abortable abortable)

Method Detail

loadRegionServerList

private void loadRegionServerList()

nodeChildrenChanged

public void nodeChildrenChanged(String path)

Description copied from class: ZKListener

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

Overrides:

nodeChildrenChanged in class ZKListener

Parameters:

path - full path of the node whose children have changed

getRegionServers

public List<ServerName> getRegionServers()