org.apache.hadoop.hbase.regionserver

类 KeyPrefixRegionSplitPolicy

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.hbase.regionserver.RegionSplitPolicy

org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy

org.apache.hadoop.hbase.regionserver.IncreasingToUpperBoundRegionSplitPolicy

org.apache.hadoop.hbase.regionserver.KeyPrefixRegionSplitPolicy

所有已实现的接口:

org.apache.hadoop.conf.Configurable

@InterfaceAudience.Private
public class KeyPrefixRegionSplitPolicy
extends IncreasingToUpperBoundRegionSplitPolicy

A custom RegionSplitPolicy implementing a SplitPolicy that groups rows by a prefix of the row-key This ensures that a region is not split "inside" a prefix of a row key. I.e. rows can be co-located in a region by their prefix.

字段概要

字段

限定符和类型	字段和说明
static String	PREFIX_LENGTH_KEY
static String	PREFIX_LENGTH_KEY_DEPRECATED 已过时。

从类继承的字段 org.apache.hadoop.hbase.regionserver.IncreasingToUpperBoundRegionSplitPolicy

initialSize

从类继承的字段 org.apache.hadoop.hbase.regionserver.RegionSplitPolicy

region

构造器概要

构造器

构造器和说明
KeyPrefixRegionSplitPolicy()

方法概要

限定符和类型	方法和说明
protected void	configureForRegion(HRegion region) Upon construction, this method will be called with the region to be governed.
protected byte[]	getSplitPoint()

从类继承的方法 org.apache.hadoop.hbase.regionserver.IncreasingToUpperBoundRegionSplitPolicy

getSizeToCheck, shouldSplit

从类继承的方法 org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy

positiveJitterRate

从类继承的方法 org.apache.hadoop.hbase.regionserver.RegionSplitPolicy

create, getSplitPolicyClass, skipStoreFileRangeCheck

从类继承的方法 org.apache.hadoop.conf.Configured

getConf, setConf

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

PREFIX_LENGTH_KEY_DEPRECATED

@Deprecated
public static final String PREFIX_LENGTH_KEY_DEPRECATED

已过时。

另请参阅:

常量字段值

PREFIX_LENGTH_KEY

public static final String PREFIX_LENGTH_KEY

另请参阅:

常量字段值

构造器详细资料

KeyPrefixRegionSplitPolicy

public KeyPrefixRegionSplitPolicy()

方法详细资料

configureForRegion

protected void configureForRegion(HRegion region)

从类复制的说明: RegionSplitPolicy

Upon construction, this method will be called with the region to be governed. It will be called once and only once.

覆盖:

configureForRegion 在类中 IncreasingToUpperBoundRegionSplitPolicy

getSplitPoint

protected byte[] getSplitPoint()

覆盖:

getSplitPoint 在类中 RegionSplitPolicy

返回:

the key at which the region should be split, or null if it cannot be split. This will only be called if shouldSplit previously returned true.