com.hazelcast.partition

Interface MigrationListener

All Superinterfaces:

EventListener

public interface MigrationListener
extends EventListener

MigrationListener provides the ability to listen to partition migration process and events.

See Also:

Partition, PartitionService, MigrationState, ReplicaMigrationEvent

Method Summary

Modifier and Type	Method and Description
void	migrationFinished(MigrationState state) Called when the migration process finishes.
void	migrationStarted(MigrationState state) Called when the migration process starts.
void	replicaMigrationCompleted(ReplicaMigrationEvent event) Called when a partition replica migration is completed successfully.
void	replicaMigrationFailed(ReplicaMigrationEvent event) Called when a partition replica migration is failed.

Method Detail

migrationStarted

void migrationStarted(MigrationState state)

Called when the migration process starts. A migration process consists of a group of partition replica migrations which are planned together.

When migration process is completed, migrationFinished(MigrationState) is called.

Parameters:

state - Plan of the migration process

migrationFinished

void migrationFinished(MigrationState state)

Called when the migration process finishes. This event denotes ending of migration process which is started by migrationStarted(MigrationState).

Not all of the planned migrations have to be completed. Some of them can be skipped because of a newly created migration plan.

If migration process coordinator member (generally the oldest member in cluster) crashes before migration process ends, then this method may not be called at all.

Parameters:

state - Result of the migration process

replicaMigrationCompleted

void replicaMigrationCompleted(ReplicaMigrationEvent event)

Called when a partition replica migration is completed successfully.

Parameters:

event - the event for the partition replica migration

replicaMigrationFailed

void replicaMigrationFailed(ReplicaMigrationEvent event)

Called when a partition replica migration is failed.

Parameters:

event - the event for the partition replica migration