org.apache.hadoop.hbase.master.assignment

Class RegionStates.RegionStateNode

java.lang.Object

org.apache.hadoop.hbase.master.assignment.RegionStates.RegionStateNode

All Implemented Interfaces:

Comparable<RegionStates.RegionStateNode>

Enclosing class:

RegionStates

public static class RegionStates.RegionStateNode
extends Object
implements Comparable<RegionStates.RegionStateNode>

Current Region State. In-memory only. Not persisted.

Constructor Summary

Constructors

Constructor and Description
RegionStateNode(org.apache.hadoop.hbase.client.RegionInfo regionInfo)

Method Summary

Modifier and Type	Method and Description
int	compareTo(RegionStates.RegionStateNode other)
boolean	equals(Object other)
int	getFormatVersion()
org.apache.hadoop.hbase.ServerName	getLastHost()
long	getLastUpdate()
long	getOpenSeqNum()
RegionTransitionProcedure	getProcedure()
org.apache.hadoop.hbase.procedure2.ProcedureEvent<?>	getProcedureEvent()
org.apache.hadoop.hbase.client.RegionInfo	getRegionInfo()
org.apache.hadoop.hbase.ServerName	getRegionLocation()
org.apache.hadoop.hbase.master.RegionState.State	getState()
org.apache.hadoop.hbase.TableName	getTable()
int	hashCode()
boolean	isInState(org.apache.hadoop.hbase.master.RegionState.State... expected)
boolean	isInTransition()
boolean	isStuck()
boolean	isSystemTable()
org.apache.hadoop.hbase.ServerName	offline() Put region into OFFLINE mode (set state and clear location).
void	setLastHost(org.apache.hadoop.hbase.ServerName serverName)
void	setOpenSeqNum(long seqId)
boolean	setProcedure(RegionTransitionProcedure proc)
org.apache.hadoop.hbase.ServerName	setRegionLocation(org.apache.hadoop.hbase.ServerName serverName)
boolean	setState(org.apache.hadoop.hbase.master.RegionState.State update, org.apache.hadoop.hbase.master.RegionState.State... expected)
String	toDescriptiveString()
org.apache.hadoop.hbase.master.RegionState	toRegionState()
String	toShortString()
String	toString()
void	transitionState(org.apache.hadoop.hbase.master.RegionState.State update, org.apache.hadoop.hbase.master.RegionState.State... expected) Set new RegionState.State but only if currently in expected State (if not, throw UnexpectedStateException.
boolean	unsetProcedure(RegionTransitionProcedure proc)

Methods inherited from class java.lang.Object

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

Constructor Detail

RegionStateNode

public RegionStateNode(org.apache.hadoop.hbase.client.RegionInfo regionInfo)

Method Detail

setState

public boolean setState(org.apache.hadoop.hbase.master.RegionState.State update,
                        org.apache.hadoop.hbase.master.RegionState.State... expected)

Parameters:

update - new region state this node should be assigned.

expected - current state should be in this given list of expected states

Returns:

true, if current state is in expected list; otherwise false.

offline

public org.apache.hadoop.hbase.ServerName offline()

Put region into OFFLINE mode (set state and clear location).

Returns:

Last recorded server deploy

transitionState

public void transitionState(org.apache.hadoop.hbase.master.RegionState.State update,
                            org.apache.hadoop.hbase.master.RegionState.State... expected)
                     throws org.apache.hadoop.hbase.exceptions.UnexpectedStateException

Set new RegionState.State but only if currently in expected State (if not, throw UnexpectedStateException.

Throws:

org.apache.hadoop.hbase.exceptions.UnexpectedStateException

isInState

public boolean isInState(org.apache.hadoop.hbase.master.RegionState.State... expected)

isStuck

public boolean isStuck()

isInTransition

public boolean isInTransition()

getLastUpdate

public long getLastUpdate()

setLastHost

public void setLastHost(org.apache.hadoop.hbase.ServerName serverName)

setOpenSeqNum

public void setOpenSeqNum(long seqId)

setRegionLocation

public org.apache.hadoop.hbase.ServerName setRegionLocation(org.apache.hadoop.hbase.ServerName serverName)

setProcedure

public boolean setProcedure(RegionTransitionProcedure proc)

unsetProcedure

public boolean unsetProcedure(RegionTransitionProcedure proc)

getProcedure

public RegionTransitionProcedure getProcedure()

getProcedureEvent

public org.apache.hadoop.hbase.procedure2.ProcedureEvent<?> getProcedureEvent()

getRegionInfo

public org.apache.hadoop.hbase.client.RegionInfo getRegionInfo()

getTable

public org.apache.hadoop.hbase.TableName getTable()

isSystemTable

public boolean isSystemTable()

getLastHost

public org.apache.hadoop.hbase.ServerName getLastHost()

getRegionLocation

public org.apache.hadoop.hbase.ServerName getRegionLocation()

getState

public org.apache.hadoop.hbase.master.RegionState.State getState()

getOpenSeqNum

public long getOpenSeqNum()

getFormatVersion

public int getFormatVersion()

toRegionState

public org.apache.hadoop.hbase.master.RegionState toRegionState()

compareTo

public int compareTo(RegionStates.RegionStateNode other)

Specified by:

compareTo in interface Comparable<RegionStates.RegionStateNode>

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

toShortString

public String toShortString()

toDescriptiveString

public String toDescriptiveString()