org.apache.hadoop.hbase.master.assignment

Class RegionStateStore

java.lang.Object

org.apache.hadoop.hbase.master.assignment.RegionStateStore

@InterfaceAudience.Private
public class RegionStateStore
extends Object

Store Region State to hbase:meta table.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	RegionStateStore.RegionStateVisitor

Field Summary

Fields

Modifier and Type	Field and Description
protected static char	META_REPLICA_ID_DELIMITER The delimiter for meta columns for replicaIds > 0

Constructor Summary

Constructors

Constructor and Description
RegionStateStore(MasterServices master)

Method Summary

Modifier and Type	Method and Description
void	deleteRegion(RegionInfo regionInfo)
void	deleteRegions(List<RegionInfo> regions)
protected RegionState.State	getRegionState(Result r, int replicaId) Pull the region state from a catalog table Result.
void	mergeRegions(RegionInfo parent, RegionInfo hriA, RegionInfo hriB, ServerName serverName)
void	splitRegion(RegionInfo parent, RegionInfo hriA, RegionInfo hriB, ServerName serverName)
void	start()
void	stop()
protected void	updateMetaLocation(RegionInfo regionInfo, ServerName serverName)
protected void	updateRegionLocation(RegionInfo regionInfo, RegionState.State state, Put... put)
void	updateRegionLocation(RegionInfo regionInfo, RegionState.State state, ServerName regionLocation, ServerName lastHost, long openSeqNum, long pid)
void	updateRegionState(long openSeqNum, long pid, RegionState newState, RegionState oldState)
protected void	updateUserRegionLocation(RegionInfo regionInfo, RegionState.State state, ServerName regionLocation, ServerName lastHost, long openSeqNum, long pid)
void	visitMeta(RegionStateStore.RegionStateVisitor visitor)

Methods inherited from class java.lang.Object

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

Field Detail

META_REPLICA_ID_DELIMITER

protected static final char META_REPLICA_ID_DELIMITER

The delimiter for meta columns for replicaIds > 0

See Also:

Constant Field Values

Constructor Detail

RegionStateStore

public RegionStateStore(MasterServices master)

Method Detail

start

public void start()
           throws IOException

Throws:

IOException

stop

public void stop()

visitMeta

public void visitMeta(RegionStateStore.RegionStateVisitor visitor)
               throws IOException

Throws:

IOException

updateRegionLocation

public void updateRegionLocation(RegionInfo regionInfo,
                                 RegionState.State state,
                                 ServerName regionLocation,
                                 ServerName lastHost,
                                 long openSeqNum,
                                 long pid)
                          throws IOException

Throws:

IOException

updateRegionState

public void updateRegionState(long openSeqNum,
                              long pid,
                              RegionState newState,
                              RegionState oldState)
                       throws IOException

Throws:

IOException

updateMetaLocation

protected void updateMetaLocation(RegionInfo regionInfo,
                                  ServerName serverName)
                           throws IOException

Throws:

IOException

updateUserRegionLocation

protected void updateUserRegionLocation(RegionInfo regionInfo,
                                        RegionState.State state,
                                        ServerName regionLocation,
                                        ServerName lastHost,
                                        long openSeqNum,
                                        long pid)
                                 throws IOException

Throws:

IOException

updateRegionLocation

protected void updateRegionLocation(RegionInfo regionInfo,
                                    RegionState.State state,
                                    Put... put)
                             throws IOException

Throws:

IOException

splitRegion

public void splitRegion(RegionInfo parent,
                        RegionInfo hriA,
                        RegionInfo hriB,
                        ServerName serverName)
                 throws IOException

Throws:

IOException

mergeRegions

public void mergeRegions(RegionInfo parent,
                         RegionInfo hriA,
                         RegionInfo hriB,
                         ServerName serverName)
                  throws IOException

Throws:

IOException

deleteRegion

public void deleteRegion(RegionInfo regionInfo)
                  throws IOException

Throws:

IOException

deleteRegions

public void deleteRegions(List<RegionInfo> regions)
                   throws IOException

Throws:

IOException

getRegionState

protected RegionState.State getRegionState(Result r,
                                           int replicaId)

Pull the region state from a catalog table Result.

Parameters:

r - Result to pull the region state from

Returns:

the region state, or OPEN if there's no value written.