org.apache.hadoop.hbase.master.balancer

Class MasterClusterInfoProvider

java.lang.Object

org.apache.hadoop.hbase.master.balancer.MasterClusterInfoProvider

All Implemented Interfaces:

ConfigurationObserver, ClusterInfoProvider

@InterfaceAudience.Private
public class MasterClusterInfoProvider
extends Object
implements ClusterInfoProvider

Master based cluster info provider.

Constructor Summary

Constructors

Constructor and Description
MasterClusterInfoProvider(MasterServices services)

Method Summary

Modifier and Type	Method and Description
HDFSBlocksDistribution	computeHDFSBlocksDistribution(org.apache.hadoop.conf.Configuration conf, TableDescriptor tableDescriptor, RegionInfo regionInfo)
List<RegionInfo>	getAssignedRegions()
org.apache.hadoop.conf.Configuration	getConfiguration()
Connection	getConnection()
ServerMetrics	getLoad(ServerName serverName)
int	getNumberOfTables()
List<ServerName>	getOnlineServersList()
List<ServerName>	getOnlineServersListWithPredicator(List<ServerName> servers, Predicate<ServerMetrics> filter)
Map<ServerName,List<RegionInfo>>	getSnapShotOfAssignment(Collection<RegionInfo> regions)
TableDescriptor	getTableDescriptor(TableName tableName)
boolean	hasRegionReplica(Collection<RegionInfo> regions)
boolean	isOffPeakHour()
void	onConfigurationChange(org.apache.hadoop.conf.Configuration conf)
void	recordBalancerDecision(Supplier<BalancerDecision> decision)
void	recordBalancerRejection(Supplier<BalancerRejection> rejection)
void	unassign(RegionInfo regionInfo)

Methods inherited from class java.lang.Object

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

Constructor Detail

MasterClusterInfoProvider

public MasterClusterInfoProvider(MasterServices services)

Method Detail

getConfiguration

public org.apache.hadoop.conf.Configuration getConfiguration()

Specified by:

getConfiguration in interface ClusterInfoProvider

getConnection

public Connection getConnection()

Specified by:

getConnection in interface ClusterInfoProvider

getAssignedRegions

public List<RegionInfo> getAssignedRegions()

Specified by:

getAssignedRegions in interface ClusterInfoProvider

unassign

public void unassign(RegionInfo regionInfo)
              throws IOException

Specified by:

unassign in interface ClusterInfoProvider

Throws:

IOException

getTableDescriptor

public TableDescriptor getTableDescriptor(TableName tableName)
                                   throws IOException

Specified by:

getTableDescriptor in interface ClusterInfoProvider

Throws:

IOException

computeHDFSBlocksDistribution

public HDFSBlocksDistribution computeHDFSBlocksDistribution(org.apache.hadoop.conf.Configuration conf,
                                                            TableDescriptor tableDescriptor,
                                                            RegionInfo regionInfo)
                                                     throws IOException

Specified by:

computeHDFSBlocksDistribution in interface ClusterInfoProvider

Throws:

IOException

hasRegionReplica

public boolean hasRegionReplica(Collection<RegionInfo> regions)
                         throws IOException

Specified by:

hasRegionReplica in interface ClusterInfoProvider

Throws:

IOException

getOnlineServersList

public List<ServerName> getOnlineServersList()

Specified by:

getOnlineServersList in interface ClusterInfoProvider

getOnlineServersListWithPredicator

public List<ServerName> getOnlineServersListWithPredicator(List<ServerName> servers,
                                                           Predicate<ServerMetrics> filter)

Specified by:

getOnlineServersListWithPredicator in interface ClusterInfoProvider

getSnapShotOfAssignment

public Map<ServerName,List<RegionInfo>> getSnapShotOfAssignment(Collection<RegionInfo> regions)

Specified by:

getSnapShotOfAssignment in interface ClusterInfoProvider

getNumberOfTables

public int getNumberOfTables()
                      throws IOException

Specified by:

getNumberOfTables in interface ClusterInfoProvider

Throws:

IOException

isOffPeakHour

public boolean isOffPeakHour()

Specified by:

isOffPeakHour in interface ClusterInfoProvider

onConfigurationChange

public void onConfigurationChange(org.apache.hadoop.conf.Configuration conf)

Specified by:

onConfigurationChange in interface ConfigurationObserver

recordBalancerDecision

public void recordBalancerDecision(Supplier<BalancerDecision> decision)

Specified by:

recordBalancerDecision in interface ClusterInfoProvider

recordBalancerRejection

public void recordBalancerRejection(Supplier<BalancerRejection> rejection)

Specified by:

recordBalancerRejection in interface ClusterInfoProvider

getLoad

public ServerMetrics getLoad(ServerName serverName)

Specified by:

getLoad in interface ClusterInfoProvider