Package org.apache.accumulo.core.manager.balancer

Class BalanceParamsImpl

java.lang.Object

org.apache.accumulo.core.manager.balancer.BalanceParamsImpl

All Implemented Interfaces:

TabletBalancer.BalanceParameters

public class BalanceParamsImpl
extends Object
implements TabletBalancer.BalanceParameters

Constructor Summary

Constructors

Constructor	Description
BalanceParamsImpl(SortedMap<TabletServerId,TServerStatus> currentStatus, Set<TabletId> currentMigrations, List<TabletMigration> migrationsOut)

Method Summary

Modifier and Type	Method	Description
void	addMigration(KeyExtent extent, TServerInstance oldServer, TServerInstance newServer)
Set<TabletId>	currentMigrations()
SortedMap<TabletServerId,TServerStatus>	currentStatus()
static BalanceParamsImpl	fromThrift(SortedMap<TabletServerId,TServerStatus> currentStatus, SortedMap<TServerInstance,TabletServerStatus> thriftCurrentStatus, Set<KeyExtent> thriftCurrentMigrations)
List<TabletMigration>	migrationsOut()
Set<KeyExtent>	thriftCurrentMigrations()
SortedMap<TServerInstance,TabletServerStatus>	thriftCurrentStatus()

Methods inherited from class java.lang.Object

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

Constructor Detail

BalanceParamsImpl

public BalanceParamsImpl(SortedMap<TabletServerId,TServerStatus> currentStatus,
                         Set<TabletId> currentMigrations,
                         List<TabletMigration> migrationsOut)

Method Detail

fromThrift

public static BalanceParamsImpl fromThrift(SortedMap<TabletServerId,TServerStatus> currentStatus,
                                           SortedMap<TServerInstance,TabletServerStatus> thriftCurrentStatus,
                                           Set<KeyExtent> thriftCurrentMigrations)

currentStatus

public SortedMap<TabletServerId,TServerStatus> currentStatus()

Specified by:

currentStatus in interface TabletBalancer.BalanceParameters

Returns:

the current status for all tablet servers (read-only)

currentMigrations

public Set<TabletId> currentMigrations()

Specified by:

currentMigrations in interface TabletBalancer.BalanceParameters

Returns:

the migrations that are currently in progress (read-only)

migrationsOut

public List<TabletMigration> migrationsOut()

Specified by:

migrationsOut in interface TabletBalancer.BalanceParameters

Returns:

a write-only map for storing new assignments made by the balancer. It is important that any tablets found in TabletBalancer.BalanceParameters.currentMigrations() are not included in the output migrations.

thriftCurrentStatus

public SortedMap<TServerInstance,TabletServerStatus> thriftCurrentStatus()

thriftCurrentMigrations

public Set<KeyExtent> thriftCurrentMigrations()

addMigration

public void addMigration(KeyExtent extent,
                         TServerInstance oldServer,
                         TServerInstance newServer)