org.apache.hadoop.hbase.client

类 MasterRegistry

java.lang.Object

org.apache.hadoop.hbase.client.MasterRegistry

@InterfaceAudience.Private
public class MasterRegistry
extends Object

Master based registry implementation. Makes RPCs to the configured master addresses from config "hbase.masters". All the registry methods are blocking unlike implementations in other branches.

嵌套类概要

嵌套类

限定符和类型	类和说明
protected static interface	MasterRegistry.Callable<T extends com.google.protobuf.Message>

字段概要

字段

限定符和类型	字段和说明
protected MasterAddressRefresher	masterAddressRefresher

构造器概要

构造器

构造器和说明
MasterRegistry()

方法概要

方法

限定符和类型	方法和说明
void	close() Cleanup state, if any.
protected <T extends com.google.protobuf.Message> T	doCall(MasterRegistry.Callable<T> callable)
ServerName	getActiveMaster()
String	getClusterId()
int	getCurrentNrHRS()
static String	getMasterAddr(org.apache.hadoop.conf.Configuration conf) Builds the default master address end point if it is not specified in the configuration.
RegionLocations	getMetaRegionLocations()
void	init(Connection connection)
boolean	isTableOnlineState(TableName tableName, boolean enabled)
static Set<ServerName>	parseMasterAddrs(org.apache.hadoop.conf.Configuration conf) Parses the list of master addresses from the provided configuration.

从类继承的方法 java.lang.Object

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

字段详细资料

masterAddressRefresher

protected MasterAddressRefresher masterAddressRefresher

构造器详细资料

MasterRegistry

public MasterRegistry()

方法详细资料

init

public void init(Connection connection)
          throws IOException

抛出:

IOException

doCall

protected <T extends com.google.protobuf.Message> T doCall(MasterRegistry.Callable<T> callable)
                                                throws MasterRegistryFetchException

抛出:

MasterRegistryFetchException

getActiveMaster

public ServerName getActiveMaster()
                           throws IOException

返回:

the currently active master, null if none exists.

抛出:

IOException

getMetaRegionLocations

public RegionLocations getMetaRegionLocations()
                                       throws IOException

返回:

Meta region location

抛出:

IOException

getClusterId

public String getClusterId()
                    throws IOException

返回:

Cluster id.

抛出:

IOException

getCurrentNrHRS

public int getCurrentNrHRS()
                    throws IOException

返回:

Count of 'running' regionservers

抛出:

IOException

isTableOnlineState

public boolean isTableOnlineState(TableName tableName,
                         boolean enabled)
                           throws IOException

enabled - Return true if table is enabled

抛出:

IOException

close

public void close()

Cleanup state, if any.

parseMasterAddrs

@InterfaceAudience.Private
public static Set<ServerName> parseMasterAddrs(org.apache.hadoop.conf.Configuration conf)
                                        throws UnknownHostException

Parses the list of master addresses from the provided configuration. Supported format is comma separated host[:port] values. If no port number if specified, default master port is assumed.

参数:

conf - Configuration to parse from.

抛出:

UnknownHostException

getMasterAddr

@InterfaceAudience.Private
public static String getMasterAddr(org.apache.hadoop.conf.Configuration conf)
                            throws UnknownHostException

Builds the default master address end point if it is not specified in the configuration.

Will be called in HBaseTestingUtility.

抛出:

UnknownHostException