Package org.apache.hadoop.hbase.master.zksyncer

Class MetaLocationSyncer

java.lang.Object

org.apache.hadoop.hbase.zookeeper.ZKListener

org.apache.hadoop.hbase.master.zksyncer.ClientZKSyncer

org.apache.hadoop.hbase.master.zksyncer.MetaLocationSyncer

@Private
public class MetaLocationSyncer
extends ClientZKSyncer

Tracks the meta region locations on server ZK cluster and synchronize them to client ZK cluster if changed

Field Summary

Fields

Modifier and Type	Field	Description
private int	metaReplicaCount

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

watcher

Constructor Summary

Constructors

Constructor	Description
MetaLocationSyncer(ZKWatcher watcher, ZKWatcher clientZkWatcher, Server server)

Method Summary

Modifier and Type	Method	Description
protected Set<String>	getPathsToWatch()	Returns the zk path(s) to watch
void	setMetaReplicaCount(int replicaCount)
protected boolean	validate(String path)	Validate whether a znode path is watched by us

Methods inherited from class org.apache.hadoop.hbase.master.zksyncer.ClientZKSyncer

nodeCreated, nodeDataChanged, nodeDeleted, refreshWatchingList, start

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

getWatcher, nodeChildrenChanged

Methods inherited from class java.lang.Object

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

Field Details

metaReplicaCount

private volatile int metaReplicaCount

Constructor Details

MetaLocationSyncer

public MetaLocationSyncer(ZKWatcher watcher,
 ZKWatcher clientZkWatcher,
 Server server)

Method Details

validate

protected boolean validate(String path)

Description copied from class: ClientZKSyncer

Validate whether a znode path is watched by us

Specified by:

validate in class ClientZKSyncer

Parameters:

path - the path to validate

Returns:

true if the znode is watched by us

getPathsToWatch

protected Set<String> getPathsToWatch()

Description copied from class: ClientZKSyncer

Returns the zk path(s) to watch

Specified by:

getPathsToWatch in class ClientZKSyncer

setMetaReplicaCount

public void setMetaReplicaCount(int replicaCount)