org.apache.hadoop.hbase.util

类 RegionSizeCalculator

java.lang.Object

org.apache.hadoop.hbase.util.RegionSizeCalculator

@InterfaceStability.Evolving
@InterfaceAudience.Private
public class RegionSizeCalculator
extends Object

Computes size of each region for given table and given column families. The value is used by MapReduce for better scheduling.

构造器概要

构造器

构造器和说明
RegionSizeCalculator(HTable table) 已过时。 Use RegionSizeCalculator(RegionLocator, Admin) instead.
RegionSizeCalculator(RegionLocator regionLocator, Admin admin) Computes size of each region for table and given column families.

方法概要

方法

限定符和类型	方法和说明
long	getRegionSize(byte[] regionId) Returns size of given region in bytes.
Map<byte[],Long>	getRegionSizeMap()

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

RegionSizeCalculator

@Deprecated
public RegionSizeCalculator(HTable table)
                     throws IOException

已过时。 Use RegionSizeCalculator(RegionLocator, Admin) instead.

Computes size of each region for table and given column families.

抛出:

IOException

RegionSizeCalculator

public RegionSizeCalculator(RegionLocator regionLocator,
                    Admin admin)
                     throws IOException

Computes size of each region for table and given column families.

抛出:

IOException

方法详细资料

getRegionSize

public long getRegionSize(byte[] regionId)

Returns size of given region in bytes. Returns 0 if region was not found.

getRegionSizeMap

public Map<byte[],Long> getRegionSizeMap()