org.apache.hadoop.hbase.master

Class RegionState

java.lang.Object

org.apache.hadoop.hbase.master.RegionState

@InterfaceAudience.Private
public class RegionState
extends Object

State of a Region while undergoing transitions. This class is immutable.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RegionState.State

Field Summary

Fields

Modifier and Type	Field and Description
private RegionInfo	hri
private long	ritDuration
private ServerName	serverName
private long	stamp
private RegionState.State	state

Constructor Summary

Constructors

Constructor and Description
RegionState(RegionInfo region, RegionState.State state, long stamp, ServerName serverName)
RegionState(RegionInfo region, RegionState.State state, long stamp, ServerName serverName, long ritDuration)
RegionState(RegionInfo region, RegionState.State state, ServerName serverName)

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionState	convert() Convert a RegionState to an HBaseProtos.RegionState
static RegionState	convert(org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionState proto) Convert a protobuf HBaseProtos.RegionState to a RegionState
static RegionState	createForTesting(RegionInfo region, RegionState.State state)
boolean	equals(Object obj) Check if two states are the same, except timestamp
RegionInfo	getRegion()
long	getRitDuration()
ServerName	getServerName()
long	getStamp()
RegionState.State	getState()
int	hashCode() Don't count timestamp in hash code calculation
boolean	isClosed()
boolean	isClosing()
boolean	isClosingOrClosedOnServer(ServerName sn)
boolean	isFailedClose()
boolean	isFailedOpen()
boolean	isMerged()
boolean	isMerging()
boolean	isMergingNew()
boolean	isMergingNewOnServer(ServerName sn)
boolean	isMergingNewOrOfflineOnServer(ServerName sn)
boolean	isMergingNewOrOpenedOnServer(ServerName sn)
boolean	isMergingOnServer(ServerName sn)
boolean	isOffline()
boolean	isOnServer(ServerName sn)
boolean	isOpened()
boolean	isOpenedOnServer(ServerName sn)
boolean	isOpening()
boolean	isOpeningOrFailedOpenOnServer(ServerName sn)
boolean	isOpeningOrOpenedOnServer(ServerName sn)
boolean	isReadyToOffline() Check if a region state can transition to offline
boolean	isReadyToOnline() Check if a region state can transition to online
boolean	isSplit()
boolean	isSplitting()
boolean	isSplittingNew()
boolean	isSplittingNewOnServer(ServerName sn)
boolean	isSplittingOnServer(ServerName sn)
boolean	isSplittingOrOpenedOnServer(ServerName sn)
boolean	isSplittingOrSplitOnServer(ServerName sn)
boolean	isUnassignable() Check if a region state is one of offline states that can't transition to pending_close/closing (unassign/offline)
static boolean	isUnassignable(RegionState.State state) Check if a region state is one of offline states that can't transition to pending_close/closing (unassign/offline)
String	toDescriptiveString() A slower (but more easy-to-read) stringification
String	toString()
(package private) void	updateRitDuration(long previousStamp) Update the duration of region in transition

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

stamp

private final long stamp

hri

private final RegionInfo hri

serverName

private final ServerName serverName

state

private final RegionState.State state

ritDuration

private long ritDuration

Constructor Detail

RegionState

public RegionState(RegionInfo region,
                   RegionState.State state,
                   ServerName serverName)

RegionState

public RegionState(RegionInfo region,
                   RegionState.State state,
                   long stamp,
                   ServerName serverName)

RegionState

public RegionState(RegionInfo region,
                   RegionState.State state,
                   long stamp,
                   ServerName serverName,
                   long ritDuration)

Method Detail

createForTesting

public static RegionState createForTesting(RegionInfo region,
                                           RegionState.State state)

getState

public RegionState.State getState()

getStamp

public long getStamp()

getRegion

public RegionInfo getRegion()

getServerName

public ServerName getServerName()

getRitDuration

public long getRitDuration()

updateRitDuration

@InterfaceAudience.Private
void updateRitDuration(long previousStamp)

Update the duration of region in transition

Parameters:

previousStamp - previous RegionState's timestamp

isClosing

public boolean isClosing()

isClosed

public boolean isClosed()

isOpening

public boolean isOpening()

isOpened

public boolean isOpened()

isOffline

public boolean isOffline()

isSplitting

public boolean isSplitting()

isSplit

public boolean isSplit()

isSplittingNew

public boolean isSplittingNew()

isFailedOpen

public boolean isFailedOpen()

isFailedClose

public boolean isFailedClose()

isMerging

public boolean isMerging()

isMerged

public boolean isMerged()

isMergingNew

public boolean isMergingNew()

isOnServer

public boolean isOnServer(ServerName sn)

isMergingOnServer

public boolean isMergingOnServer(ServerName sn)

isMergingNewOnServer

public boolean isMergingNewOnServer(ServerName sn)

isMergingNewOrOpenedOnServer

public boolean isMergingNewOrOpenedOnServer(ServerName sn)

isMergingNewOrOfflineOnServer

public boolean isMergingNewOrOfflineOnServer(ServerName sn)

isSplittingOnServer

public boolean isSplittingOnServer(ServerName sn)

isSplittingNewOnServer

public boolean isSplittingNewOnServer(ServerName sn)

isSplittingOrOpenedOnServer

public boolean isSplittingOrOpenedOnServer(ServerName sn)

isSplittingOrSplitOnServer

public boolean isSplittingOrSplitOnServer(ServerName sn)

isClosingOrClosedOnServer

public boolean isClosingOrClosedOnServer(ServerName sn)

isOpeningOrFailedOpenOnServer

public boolean isOpeningOrFailedOpenOnServer(ServerName sn)

isOpeningOrOpenedOnServer

public boolean isOpeningOrOpenedOnServer(ServerName sn)

isOpenedOnServer

public boolean isOpenedOnServer(ServerName sn)

isReadyToOffline

public boolean isReadyToOffline()

Check if a region state can transition to offline

isReadyToOnline

public boolean isReadyToOnline()

Check if a region state can transition to online

isUnassignable

public boolean isUnassignable()

Check if a region state is one of offline states that can't transition to pending_close/closing (unassign/offline)

isUnassignable

public static boolean isUnassignable(RegionState.State state)

Check if a region state is one of offline states that can't transition to pending_close/closing (unassign/offline)

toString

public String toString()

Overrides:

toString in class Object

toDescriptiveString

public String toDescriptiveString()

A slower (but more easy-to-read) stringification

convert

public org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionState convert()

Convert a RegionState to an HBaseProtos.RegionState

Returns:

the converted HBaseProtos.RegionState

convert

public static RegionState convert(org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionState proto)

Convert a protobuf HBaseProtos.RegionState to a RegionState

Returns:

the RegionState

equals

public boolean equals(Object obj)

Check if two states are the same, except timestamp

Overrides:

equals in class Object

hashCode

public int hashCode()

Don't count timestamp in hash code calculation

Overrides:

hashCode in class Object