Package io.camunda.zeebe.snapshots.transfer

Class SnapshotTransferServiceImpl

java.lang.Object

io.camunda.zeebe.snapshots.transfer.SnapshotTransferServiceImpl

All Implemented Interfaces:

AsyncClosable, SnapshotSenderService, SnapshotTransferService

public class SnapshotTransferServiceImpl
extends Object
implements SnapshotSenderService

Nested Class Summary

Nested classes/interfaces inherited from interface io.camunda.zeebe.snapshots.transfer.SnapshotTransferService

SnapshotTransferService.TakeSnapshot

Constructor Summary

Constructors

Constructor	Description
SnapshotTransferServiceImpl(PersistedSnapshotStore snapshotStore, SnapshotTransferService.TakeSnapshot takeSnapshot, int partitionId, BiConsumer<Path,Path> copyForBootstrap, ConcurrencyControl concurrency)

Method Summary

Modifier and Type	Method	Description
ActorFuture<Void>	closeAsync()
ActorFuture<Void>	deleteSnapshots(int partitionId)	Delete the underlying snapshot for bootstrap and terminate all pending transfers
ActorFuture<SnapshotChunk>	getLatestSnapshot(int partition, long lastProcessedPosition, UUID transferId)	Initiate the transfer of the latest snapshot for a partition.
ActorFuture<SnapshotChunk>	getNextChunk(int partition, String snapshotId, String previousChunkName, UUID transferId)	Get the next chunk for the snapshot.

Methods inherited from class java.lang.Object

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

Constructor Details

SnapshotTransferServiceImpl

public SnapshotTransferServiceImpl(PersistedSnapshotStore snapshotStore,
 SnapshotTransferService.TakeSnapshot takeSnapshot,
 int partitionId,
 BiConsumer<Path,Path> copyForBootstrap,
 ConcurrencyControl concurrency)

Method Details

getLatestSnapshot

public ActorFuture<SnapshotChunk> getLatestSnapshot(int partition,
 long lastProcessedPosition,
 UUID transferId)

Description copied from interface: SnapshotTransferService

Initiate the transfer of the latest snapshot for a partition.

Specified by:

getLatestSnapshot in interface SnapshotTransferService

Parameters:

partition - the partition to get the snapshot from

lastProcessedPosition - the minimum value of lastProcessedPosition that the snapshot must have

transferId - an identifier to trace the transfer

Returns:

the first SnapshotChunk. It must be used in subsequent calls to SnapshotTransferService.getNextChunk(int, java.lang.String, java.lang.String, java.util.UUID)

getNextChunk

public ActorFuture<SnapshotChunk> getNextChunk(int partition,
 String snapshotId,
 String previousChunkName,
 UUID transferId)

Description copied from interface: SnapshotTransferService

Get the next chunk for the snapshot.

Specified by:

getNextChunk in interface SnapshotTransferService

Parameters:

partition - the partition to request the snapshot from

snapshotId - the snapshotId of the snapshot being transferred

previousChunkName - the chunkName of the previous chunk, so that the next one can be identified

Returns:

null if there is no other chunk or the SnapshotChunk after

deleteSnapshots

public ActorFuture<Void> deleteSnapshots(int partitionId)

Description copied from interface: SnapshotSenderService

Delete the underlying snapshot for bootstrap and terminate all pending transfers

Specified by:

deleteSnapshots in interface SnapshotSenderService

Parameters:

partitionId - the partition for which to delete snapshots

closeAsync

public ActorFuture<Void> closeAsync()

Specified by:

closeAsync in interface AsyncClosable