org.elasticsearch.snapshots

Class SnapshotShardsService

java.lang.Object

org.elasticsearch.common.component.AbstractComponent

org.elasticsearch.common.component.AbstractLifecycleComponent

org.elasticsearch.snapshots.SnapshotShardsService

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, ClusterStateApplier, LifecycleComponent, Releasable, IndexEventListener

public class SnapshotShardsService
extends AbstractLifecycleComponent
implements ClusterStateApplier, IndexEventListener

This service runs on data and master nodes and controls currently snapshotted shards on these nodes. It is responsible for starting and stopping shard level snapshots

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SnapshotShardsService.UpdateIndexShardSnapshotStatusRequest Internal request that is used to send changes in snapshot status to master

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	UPDATE_SNAPSHOT_ACTION_NAME

Fields inherited from class org.elasticsearch.common.component.AbstractLifecycleComponent

lifecycle

Fields inherited from class org.elasticsearch.common.component.AbstractComponent

deprecationLogger, logger, settings

Constructor Summary

Constructors

Constructor and Description
SnapshotShardsService(Settings settings, ClusterService clusterService, SnapshotsService snapshotsService, ThreadPool threadPool, TransportService transportService, IndicesService indicesService)

Method Summary

Modifier and Type	Method and Description
void	applyClusterState(ClusterChangedEvent event) Called when a new cluster state (ClusterChangedEvent.state() needs to be applied
void	beforeIndexShardClosed(ShardId shardId, IndexShard indexShard, Settings indexSettings) Called before the index shard gets closed.
java.util.Map<ShardId,IndexShardSnapshotStatus>	currentSnapshotShards(Snapshot snapshot) Returns status of shards that are snapshotted on the node and belong to the given snapshot
protected void	doClose()
protected void	doStart()
protected void	doStop()
void	updateIndexShardSnapshotStatus(Snapshot snapshot, ShardId shardId, SnapshotsInProgress.ShardSnapshotStatus status, DiscoveryNode master) Updates the shard status

Methods inherited from class org.elasticsearch.common.component.AbstractLifecycleComponent

addLifecycleListener, close, lifecycleState, removeLifecycleListener, start, stop

Methods inherited from class org.elasticsearch.common.component.AbstractComponent

logDeprecatedSetting, logRemovedSetting, nodeName

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, indexShardStateChanged, onShardInactive, onStoreClosed, shardRoutingChanged

Field Detail

UPDATE_SNAPSHOT_ACTION_NAME

public static final java.lang.String UPDATE_SNAPSHOT_ACTION_NAME

See Also:

Constant Field Values

Constructor Detail

SnapshotShardsService

@Inject
public SnapshotShardsService(Settings settings,
                                     ClusterService clusterService,
                                     SnapshotsService snapshotsService,
                                     ThreadPool threadPool,
                                     TransportService transportService,
                                     IndicesService indicesService)

Method Detail

doStart

protected void doStart()

Specified by:

doStart in class AbstractLifecycleComponent

doStop

protected void doStop()

Specified by:

doStop in class AbstractLifecycleComponent

doClose

protected void doClose()

Specified by:

doClose in class AbstractLifecycleComponent

applyClusterState

public void applyClusterState(ClusterChangedEvent event)

Description copied from interface: ClusterStateApplier

Called when a new cluster state (ClusterChangedEvent.state() needs to be applied

Specified by:

applyClusterState in interface ClusterStateApplier

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

currentSnapshotShards

public java.util.Map<ShardId,IndexShardSnapshotStatus> currentSnapshotShards(Snapshot snapshot)

Returns status of shards that are snapshotted on the node and belong to the given snapshot

This method is executed on data node

Parameters:

snapshot - snapshot

Returns:

map of shard id to snapshot status

updateIndexShardSnapshotStatus

public void updateIndexShardSnapshotStatus(Snapshot snapshot,
                                           ShardId shardId,
                                           SnapshotsInProgress.ShardSnapshotStatus status,
                                           DiscoveryNode master)

Updates the shard status