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

@InterfaceAudience.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 and Description
private int	metaReplicaCount

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

watcher

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
protected Set<String>	getPathsToWatch()
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 Detail

metaReplicaCount

private volatile int metaReplicaCount

Constructor Detail

MetaLocationSyncer

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

Method Detail

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()

Specified by:

getPathsToWatch in class ClientZKSyncer

Returns:

the zk path(s) to watch

setMetaReplicaCount

public void setMetaReplicaCount(int replicaCount)