org.apache.accumulo.server.master.state

Class TabletLocationState

java.lang.Object

org.apache.accumulo.server.master.state.TabletLocationState

public class TabletLocationState
extends Object

When a tablet is assigned, we mark its future location. When the tablet is opened, we set its current location. A tablet should never have both a future and current location. A tablet server is always associated with a unique session id. If the current tablet server has a different session, we know the location information is out-of-date.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TabletLocationState.BadLocationStateException

Field Summary

Fields

Modifier and Type	Field and Description
boolean	chopped
TServerInstance	current
KeyExtent	extent
TServerInstance	future
TServerInstance	last
SuspendingTServer	suspend
Collection<Collection<String>>	walogs

Constructor Summary

Constructors

Constructor and Description
TabletLocationState(KeyExtent extent, TServerInstance future, TServerInstance current, TServerInstance last, SuspendingTServer suspend, Collection<Collection<String>> walogs, boolean chopped)

Method Summary

Modifier and Type	Method and Description
TServerInstance	futureOrCurrent()
TServerInstance	getServer()
TabletState	getState(Set<TServerInstance> liveServers)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

extent

public final KeyExtent extent

future

public final TServerInstance future

current

public final TServerInstance current

last

public final TServerInstance last

suspend

public final SuspendingTServer suspend

walogs

public final Collection<Collection<String>> walogs

chopped

public final boolean chopped

Constructor Detail

TabletLocationState

public TabletLocationState(KeyExtent extent,
                           TServerInstance future,
                           TServerInstance current,
                           TServerInstance last,
                           SuspendingTServer suspend,
                           Collection<Collection<String>> walogs,
                           boolean chopped)
                    throws TabletLocationState.BadLocationStateException

Throws:

TabletLocationState.BadLocationStateException

Method Detail

futureOrCurrent

public TServerInstance futureOrCurrent()

toString

public String toString()

Overrides:

toString in class Object

getServer

public TServerInstance getServer()

getState

public TabletState getState(Set<TServerInstance> liveServers)