org.apache.hadoop.hbase.regionserver

类 ScannerIdGenerator

java.lang.Object

org.apache.hadoop.hbase.regionserver.ScannerIdGenerator

@InterfaceAudience.Private
public class ScannerIdGenerator
extends Object

Generate a new style scanner id to prevent collision with previous started server or other RSs. We have 64 bits to use. The first 32 bits are MurmurHash32 of ServerName string "host,port,ts". The ServerName contains both host, port, and start timestamp so it can prevent collision. The lowest 32bit is generated by atomic int.

构造器概要

构造器

构造器和说明
ScannerIdGenerator(ServerName serverName)

方法概要

方法

限定符和类型	方法和说明
long	generateNewScannerId()

从类继承的方法 java.lang.Object

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

构造器详细资料

ScannerIdGenerator

public ScannerIdGenerator(ServerName serverName)

方法详细资料

generateNewScannerId

public long generateNewScannerId()