Package org.apache.hadoop.hbase.regionserver

Class SteppingSplitPolicy

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.SteppingSplitPolicy

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable

@Private
public class SteppingSplitPolicy
extends IncreasingToUpperBoundRegionSplitPolicy

Field Summary

Fields inherited from class org.apache.hadoop.hbase.regionserver.IncreasingToUpperBoundRegionSplitPolicy

initialSize

Fields inherited from class org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy

MAX_FILESIZE_JITTER_KEY, overallHRegionFiles

Fields inherited from class org.apache.hadoop.hbase.regionserver.RegionSplitPolicy

region

Constructor Summary

Constructors

Constructor	Description
SteppingSplitPolicy()

Method Summary

Modifier and Type	Method	Description
protected long	getSizeToCheck(int tableRegionsCount)
String	toString()

Methods inherited from class org.apache.hadoop.hbase.regionserver.IncreasingToUpperBoundRegionSplitPolicy

configureForRegion, shouldSplit

Methods inherited from class org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy

getDesiredMaxFileSize, isExceedSize, positiveJitterRate

Methods inherited from class org.apache.hadoop.hbase.regionserver.RegionSplitPolicy

canSplit, create, getSplitPoint, getSplitPolicyClass, skipStoreFileRangeCheck

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Constructor Details

SteppingSplitPolicy

public SteppingSplitPolicy()

Method Details

toString

public String toString()

Overrides:

toString in class IncreasingToUpperBoundRegionSplitPolicy

getSizeToCheck

protected long getSizeToCheck(int tableRegionsCount)

Overrides:

getSizeToCheck in class IncreasingToUpperBoundRegionSplitPolicy

Returns:

flushSize * 2 if there's exactly one region of the table in question found on this regionserver. Otherwise max file size. This allows a table to spread quickly across servers, while avoiding creating too many regions.