Package org.elasticsearch.index.seqno

Class GlobalCheckpointSyncAction

java.lang.Object

org.elasticsearch.action.support.TransportAction<Request,Response>

org.elasticsearch.action.support.replication.TransportReplicationAction<GlobalCheckpointSyncAction.Request,GlobalCheckpointSyncAction.Request,ReplicationResponse>

org.elasticsearch.index.seqno.GlobalCheckpointSyncAction

public class GlobalCheckpointSyncAction
extends TransportReplicationAction<GlobalCheckpointSyncAction.Request,GlobalCheckpointSyncAction.Request,ReplicationResponse>

Background global checkpoint sync action initiated when a shard goes inactive. This is needed because while we send the global checkpoint on every replication operation, after the last operation completes the global checkpoint could advance but without a follow-up operation the global checkpoint will never be synced to the replicas.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	GlobalCheckpointSyncAction.Request

Nested classes/interfaces inherited from class org.elasticsearch.action.support.replication.TransportReplicationAction

TransportReplicationAction.ConcreteReplicaRequest<R extends TransportRequest>, TransportReplicationAction.ConcreteShardRequest<R extends TransportRequest>, TransportReplicationAction.PrimaryResult<ReplicaRequest extends ReplicationRequest<ReplicaRequest>,Response extends ReplicationResponse>, TransportReplicationAction.ReplicaResponse, TransportReplicationAction.ReplicaResult, TransportReplicationAction.ReplicasProxy, TransportReplicationAction.RetryOnReplicaException

Field Summary

Fields

Modifier and Type	Field	Description
static String	ACTION_NAME

Fields inherited from class org.elasticsearch.action.support.replication.TransportReplicationAction

clusterService, executor, forceExecutionOnPrimary, indicesService, REPLICATION_INITIAL_RETRY_BACKOFF_BOUND, REPLICATION_RETRY_TIMEOUT, shardStateAction, threadPool, transportOptions, transportPrimaryAction, transportReplicaAction, transportService

Fields inherited from class org.elasticsearch.action.support.TransportAction

actionName, localConnection, logger, taskManager

Constructor Summary

Constructors

Constructor	Description
GlobalCheckpointSyncAction(Settings settings, TransportService transportService, ClusterService clusterService, IndicesService indicesService, ThreadPool threadPool, ShardStateAction shardStateAction, ActionFilters actionFilters)

Method Summary

Modifier and Type	Method	Description
protected ReplicationResponse	newResponseInstance(StreamInput in)
protected void	shardOperationOnPrimary(GlobalCheckpointSyncAction.Request request, IndexShard indexShard, ActionListener<TransportReplicationAction.PrimaryResult<GlobalCheckpointSyncAction.Request,ReplicationResponse>> listener)	Primary operation on node with primary copy.
protected void	shardOperationOnReplica(GlobalCheckpointSyncAction.Request shardRequest, IndexShard replica, ActionListener<TransportReplicationAction.ReplicaResult> listener)	Execute the specified replica operation.
void	updateGlobalCheckpointForShard(ShardId shardId)

Methods inherited from class org.elasticsearch.action.support.replication.TransportReplicationAction

acquirePrimaryOperationPermit, acquireReplicaOperationPermit, adaptResponse, checkOperationLimits, checkPrimaryLimits, checkReplicaLimits, doExecute, globalBlockLevel, handlePrimaryRequest, handleReplicaRequest, indexBlockLevel, newReplicasProxy, resolveRequest, retryPrimaryException, transportOptions

Methods inherited from class org.elasticsearch.action.support.TransportAction

execute, execute, execute

Methods inherited from class java.lang.Object

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

Field Details

ACTION_NAME

public static String ACTION_NAME

Constructor Details

GlobalCheckpointSyncAction

@Inject
public GlobalCheckpointSyncAction(Settings settings,
 TransportService transportService,
 ClusterService clusterService,
 IndicesService indicesService,
 ThreadPool threadPool,
 ShardStateAction shardStateAction,
 ActionFilters actionFilters)

Method Details

updateGlobalCheckpointForShard

public void updateGlobalCheckpointForShard(ShardId shardId)

newResponseInstance

protected ReplicationResponse newResponseInstance(StreamInput in)
                                           throws IOException

Specified by:

newResponseInstance in class TransportReplicationAction<GlobalCheckpointSyncAction.Request,GlobalCheckpointSyncAction.Request,ReplicationResponse>

Throws:

IOException

shardOperationOnPrimary

protected void shardOperationOnPrimary(GlobalCheckpointSyncAction.Request request,
 IndexShard indexShard,
 ActionListener<TransportReplicationAction.PrimaryResult<GlobalCheckpointSyncAction.Request,ReplicationResponse>> listener)

Description copied from class: TransportReplicationAction

Primary operation on node with primary copy.

Specified by:

shardOperationOnPrimary in class TransportReplicationAction<GlobalCheckpointSyncAction.Request,GlobalCheckpointSyncAction.Request,ReplicationResponse>

Parameters:

request - the request to the primary shard

indexShard - the primary shard to perform the operation on

shardOperationOnReplica

protected void shardOperationOnReplica(GlobalCheckpointSyncAction.Request shardRequest,
 IndexShard replica,
 ActionListener<TransportReplicationAction.ReplicaResult> listener)

Description copied from class: TransportReplicationAction

Execute the specified replica operation. This is done under a permit from IndexShard.acquireReplicaOperationPermit(long, long, long, ActionListener, String, Object).

Specified by:

shardOperationOnReplica in class TransportReplicationAction<GlobalCheckpointSyncAction.Request,GlobalCheckpointSyncAction.Request,ReplicationResponse>

Parameters:

shardRequest - the request to the replica shard

replica - the replica shard to perform the operation on