org.apache.hadoop.hbase.master

类 RackManager

java.lang.Object

org.apache.hadoop.hbase.master.RackManager

@InterfaceAudience.Private
public class RackManager
extends Object

Wrapper over the rack resolution utility in Hadoop. The rack resolution utility in Hadoop does resolution from hosts to the racks they belong to.

字段概要

字段

限定符和类型	字段和说明
static String	UNKNOWN_RACK

构造器概要

构造器

构造器和说明
RackManager()
RackManager(org.apache.hadoop.conf.Configuration conf)

方法概要

限定符和类型	方法和说明
List<String>	getRack(List<ServerName> servers) Same as getRack(ServerName) except that a list is passed
String	getRack(ServerName server) Get the name of the rack containing a server, according to the DNS to switch mapping.

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

UNKNOWN_RACK

public static final String UNKNOWN_RACK

另请参阅:

常量字段值

构造器详细资料

RackManager

public RackManager()

RackManager

public RackManager(org.apache.hadoop.conf.Configuration conf)

方法详细资料

getRack

public String getRack(ServerName server)

Get the name of the rack containing a server, according to the DNS to switch mapping.

参数:

server - the server for which to get the rack name

返回:

the rack name of the server

getRack

public List<String> getRack(List<ServerName> servers)

Same as getRack(ServerName) except that a list is passed

参数:

servers - list of servers we're requesting racks information for

返回:

list of racks for the given list of servers