org.apache.hadoop.hbase.master

Class AssignmentVerificationReport

java.lang.Object

org.apache.hadoop.hbase.master.AssignmentVerificationReport

@InterfaceAudience.Private
public class AssignmentVerificationReport
extends Object

Helper class that is used by RegionPlacementMaintainer to print information for favored nodes

Field Summary

Fields

Modifier and Type	Field and Description
private float	actualLocalitySummary
private float	avgDispersionNum
private float	avgDispersionScore
private float	avgRegionsOnRS
private boolean	enforceLocality
private int[]	favoredNodes
private float[]	favoredNodesLocalitySummary
private boolean	isFilledUp
private Set<ServerName>	leastLoadedRSSet
private static org.slf4j.Logger	LOG
private float	maxDispersionNum
private Set<ServerName>	maxDispersionNumServerSet
private float	maxDispersionScore
private Set<ServerName>	maxDispersionScoreServerSet
private int	maxRegionsOnRS
private float	minDispersionNum
private Set<ServerName>	minDispersionNumServerSet
private float	minDispersionScore
private Set<ServerName>	minDispersionScoreServerSet
private int	minRegionsOnRS
private Set<ServerName>	mostLoadedRSSet
private List<RegionInfo>	nonFavoredAssignedRegionList
private List<RegionInfo>	regionsWithoutValidFavoredNodes
private TableName	tableName
private int	totalFavoredAssignments
private int	totalRegions
private int	totalRegionServers
private List<RegionInfo>	unAssignedRegionsList

Constructor Summary

Constructors

Constructor and Description
AssignmentVerificationReport()

Method Summary

Modifier and Type	Method and Description
void	fillUp(TableName tableName, SnapshotOfRegionAssignmentFromMeta snapshot, Map<String,Map<String,Float>> regionLocalityMap)
void	fillUpDispersion(TableName tableName, SnapshotOfRegionAssignmentFromMeta snapshot, FavoredNodesPlan newPlan) Use this to project the dispersion scores
List<Float>	getDispersionInformation()
(package private) List<RegionInfo>	getNonFavoredAssignedRegions() Return the regions not assigned to its favored nodes
(package private) int	getNumRegionsOnFavoredNodeByPosition(FavoredNodesPlan.Position position) Return the number of regions based on the position (primary/secondary/ tertiary) assigned to their favored nodes
(package private) List<RegionInfo>	getRegionsWithoutValidFavoredNodes() Return the regions without favored nodes
(package private) int	getTotalFavoredAssignments() Return the number of regions assigned to their favored nodes
(package private) List<RegionInfo>	getUnassignedRegions() Return the unassigned regions
void	print(boolean isDetailMode)
private void	printHServerAddressSet(Set<ServerName> serverSet)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

tableName

private TableName tableName

enforceLocality

private boolean enforceLocality

isFilledUp

private boolean isFilledUp

totalRegions

private int totalRegions

totalRegionServers

private int totalRegionServers

unAssignedRegionsList

private List<RegionInfo> unAssignedRegionsList

regionsWithoutValidFavoredNodes

private List<RegionInfo> regionsWithoutValidFavoredNodes

nonFavoredAssignedRegionList

private List<RegionInfo> nonFavoredAssignedRegionList

totalFavoredAssignments

private int totalFavoredAssignments

favoredNodes

private int[] favoredNodes

favoredNodesLocalitySummary

private float[] favoredNodesLocalitySummary

actualLocalitySummary

private float actualLocalitySummary

avgRegionsOnRS

private float avgRegionsOnRS

maxRegionsOnRS

private int maxRegionsOnRS

minRegionsOnRS

private int minRegionsOnRS

mostLoadedRSSet

private Set<ServerName> mostLoadedRSSet

leastLoadedRSSet

private Set<ServerName> leastLoadedRSSet

avgDispersionScore

private float avgDispersionScore

maxDispersionScore

private float maxDispersionScore

maxDispersionScoreServerSet

private Set<ServerName> maxDispersionScoreServerSet

minDispersionScore

private float minDispersionScore

minDispersionScoreServerSet

private Set<ServerName> minDispersionScoreServerSet

avgDispersionNum

private float avgDispersionNum

maxDispersionNum

private float maxDispersionNum

maxDispersionNumServerSet

private Set<ServerName> maxDispersionNumServerSet

minDispersionNum

private float minDispersionNum

minDispersionNumServerSet

private Set<ServerName> minDispersionNumServerSet

Constructor Detail

AssignmentVerificationReport

public AssignmentVerificationReport()

Method Detail

fillUp

public void fillUp(TableName tableName,
                   SnapshotOfRegionAssignmentFromMeta snapshot,
                   Map<String,Map<String,Float>> regionLocalityMap)

fillUpDispersion

public void fillUpDispersion(TableName tableName,
                             SnapshotOfRegionAssignmentFromMeta snapshot,
                             FavoredNodesPlan newPlan)

Use this to project the dispersion scores

Parameters:

tableName -

snapshot -

newPlan -

getDispersionInformation

public List<Float> getDispersionInformation()

Returns:

list which contains just 3 elements: average dispersion score, max dispersion score and min dispersion score as first, second and third element respectively.

print

public void print(boolean isDetailMode)

getUnassignedRegions

List<RegionInfo> getUnassignedRegions()

Return the unassigned regions

Returns:

unassigned regions

getRegionsWithoutValidFavoredNodes

List<RegionInfo> getRegionsWithoutValidFavoredNodes()

Return the regions without favored nodes

Returns:

regions without favored nodes

getNonFavoredAssignedRegions

List<RegionInfo> getNonFavoredAssignedRegions()

Return the regions not assigned to its favored nodes

Returns:

regions not assigned to its favored nodes

getTotalFavoredAssignments

int getTotalFavoredAssignments()

Return the number of regions assigned to their favored nodes

Returns:

number of regions assigned to their favored nodes

getNumRegionsOnFavoredNodeByPosition

int getNumRegionsOnFavoredNodeByPosition(FavoredNodesPlan.Position position)

Return the number of regions based on the position (primary/secondary/ tertiary) assigned to their favored nodes

Parameters:

position -

Returns:

the number of regions

printHServerAddressSet

private void printHServerAddressSet(Set<ServerName> serverSet)