Package org.infinispan.statetransfer

Interface StateTransferManager

All Known Implementing Classes:

StateTransferManagerImpl

public interface StateTransferManager

A component that manages the state transfer when the topology of the cluster changes.

Since:

5.1

Author:

Dan Berindei <dan@infinispan.org>, Mircea Markus, anistor@redhat.com

Method Summary

Modifier and Type	Method	Description
default Map<Address,Response>	forwardCommandIfNeeded(TopologyAffectedCommand command, Set<Object> affectedKeys, Address origin)	Deprecated, for removal: This API element is subject to removal in a future version. Since 14.0.
long	getInflightSegmentTransferCount()	Returns the number of requested segments to be transferred.
long	getInflightTransactionalSegmentCount()	Returns the number of transactional segments requested which are still in-flight.
String	getRebalancingStatus()
StateConsumer	getStateConsumer()
StateProvider	getStateProvider()
boolean	isJoinComplete()
boolean	isStateTransferInProgress()	Checks if an inbound state transfer is in progress.
void	start()
void	stop()
void	waitForInitialStateTransferToComplete()	Wait for the local cache to receive initial state from the other members.

Method Details

isJoinComplete

boolean isJoinComplete()

isStateTransferInProgress

boolean isStateTransferInProgress()

Checks if an inbound state transfer is in progress.

getInflightSegmentTransferCount

long getInflightSegmentTransferCount()

Returns the number of requested segments to be transferred.

getInflightTransactionalSegmentCount

long getInflightTransactionalSegmentCount()

Returns the number of transactional segments requested which are still in-flight.

start

void start()
    throws Exception

Throws:

Exception

waitForInitialStateTransferToComplete

void waitForInitialStateTransferToComplete()

Wait for the local cache to receive initial state from the other members.

Does nothing if StateTransferConfiguration.awaitInitialTransfer() is disabled.

stop

void stop()

forwardCommandIfNeeded

@Deprecated(forRemoval=true,
            since="14.0")
default Map<Address,Response> forwardCommandIfNeeded(TopologyAffectedCommand command,
 Set<Object> affectedKeys,
 Address origin)

Deprecated, for removal: This API element is subject to removal in a future version.

Since 14.0. To be removed without replacement.

If there is an state transfer happening at the moment, this method forwards the supplied command to the nodes that are new owners of the data, in order to assure consistency.

getRebalancingStatus

String getRebalancingStatus()
                     throws Exception

Throws:

Exception

getStateConsumer

StateConsumer getStateConsumer()

getStateProvider

StateProvider getStateProvider()