Package org.elasticsearch.indices.recovery

Class PeerRecoveryTargetService

java.lang.Object

org.elasticsearch.indices.recovery.PeerRecoveryTargetService

All Implemented Interfaces:

IndexEventListener

public class PeerRecoveryTargetService
extends Object
implements IndexEventListener

The recovery target handles recoveries of peer shards of the shard+node to recover to.

Note, it can be safely assumed that there will only be a single recovery per shard (index+id) and not several of them (since we don't allocate several shard replicas to the same node).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PeerRecoveryTargetService.Actions
static interface	PeerRecoveryTargetService.RecoveryListener

Constructor Summary

Constructors

Constructor	Description
PeerRecoveryTargetService(ThreadPool threadPool, TransportService transportService, RecoverySettings recoverySettings, ClusterService clusterService, SnapshotFilesProvider snapshotFilesProvider)

Method Summary

Modifier and Type	Method	Description
void	beforeIndexShardClosed(ShardId shardId, IndexShard indexShard, Settings indexSettings)	Called before the index shard gets closed.
static StartRecoveryRequest	getStartRecoveryRequest(org.apache.logging.log4j.Logger logger, DiscoveryNode localNode, RecoveryTarget recoveryTarget, long startingSeqNo)	Prepare the start recovery request.
protected void	reestablishRecovery(StartRecoveryRequest request, String reason, TimeValue retryAfter)
protected void	retryRecovery(long recoveryId, String reason, TimeValue retryAfter, TimeValue activityTimeout)
protected void	retryRecovery(long recoveryId, Throwable reason, TimeValue retryAfter, TimeValue activityTimeout)
void	startRecovery(IndexShard indexShard, DiscoveryNode sourceNode, PeerRecoveryTargetService.RecoveryListener listener)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.index.shard.IndexEventListener

afterIndexCreated, afterIndexRemoved, afterIndexShardClosed, afterIndexShardCreated, afterIndexShardDeleted, afterIndexShardStarted, beforeIndexAddedToCluster, beforeIndexCreated, beforeIndexRemoved, beforeIndexShardCreated, beforeIndexShardDeleted, beforeIndexShardRecovery, indexShardStateChanged, onShardInactive, onStoreClosed, onStoreCreated, shardRoutingChanged

Constructor Details

PeerRecoveryTargetService

public PeerRecoveryTargetService(ThreadPool threadPool,
 TransportService transportService,
 RecoverySettings recoverySettings,
 ClusterService clusterService,
 SnapshotFilesProvider snapshotFilesProvider)

Method Details

beforeIndexShardClosed

public void beforeIndexShardClosed(ShardId shardId,
 @Nullable
 IndexShard indexShard,
 Settings indexSettings)

Description copied from interface: IndexEventListener

Called before the index shard gets closed.

Specified by:

beforeIndexShardClosed in interface IndexEventListener

indexShard - The index shard

startRecovery

public void startRecovery(IndexShard indexShard,
 DiscoveryNode sourceNode,
 PeerRecoveryTargetService.RecoveryListener listener)

retryRecovery

protected void retryRecovery(long recoveryId,
 Throwable reason,
 TimeValue retryAfter,
 TimeValue activityTimeout)

retryRecovery

protected void retryRecovery(long recoveryId,
 String reason,
 TimeValue retryAfter,
 TimeValue activityTimeout)

reestablishRecovery

protected void reestablishRecovery(StartRecoveryRequest request,
 String reason,
 TimeValue retryAfter)

getStartRecoveryRequest

public static StartRecoveryRequest getStartRecoveryRequest(org.apache.logging.log4j.Logger logger,
 DiscoveryNode localNode,
 RecoveryTarget recoveryTarget,
 long startingSeqNo)

Prepare the start recovery request.

Parameters:

logger - the logger

localNode - the local node of the recovery target

recoveryTarget - the target of the recovery

startingSeqNo - a sequence number that an operation-based peer recovery can start with. This is the first operation after the local checkpoint of the safe commit if exists.

Returns:

a start recovery request