Module org.elasticsearch.server

Package org.elasticsearch.health.node.selection

Class HealthNodeTaskExecutor

java.lang.Object

org.elasticsearch.persistent.PersistentTasksExecutor<org.elasticsearch.health.node.selection.HealthNodeTaskParams>

org.elasticsearch.health.node.selection.HealthNodeTaskExecutor

public final class HealthNodeTaskExecutor
extends PersistentTasksExecutor<org.elasticsearch.health.node.selection.HealthNodeTaskParams>

Persistent task executor that is managing the HealthNode.

Field Summary

Fields

Modifier and Type	Field	Description
static final Setting<Boolean>	ENABLED_SETTING

Fields inherited from class org.elasticsearch.persistent.PersistentTasksExecutor

NO_NODE_FOUND

Constructor Summary

Constructors

Constructor	Description
HealthNodeTaskExecutor(ClusterService clusterService, PersistentTasksService persistentTasksService, Settings settings, ClusterSettings clusterSettings)

Method Summary

Modifier and Type	Method	Description
protected HealthNode	createTask(long id, String type, String action, TaskId parentTaskId, PersistentTasksCustomMetadata.PersistentTask<org.elasticsearch.health.node.selection.HealthNodeTaskParams> taskInProgress, Map<String,String> headers)	Creates a AllocatedPersistentTask for communicating with task manager
PersistentTasksCustomMetadata.Assignment	getAssignment(org.elasticsearch.health.node.selection.HealthNodeTaskParams params, Collection<DiscoveryNode> candidateNodes, ClusterState clusterState)	Returns the node id from the eligible health nodes
static List<NamedWriteableRegistry.Entry>	getNamedWriteables()
static List<NamedXContentRegistry.Entry>	getNamedXContentParsers()
protected void	nodeOperation(AllocatedPersistentTask task, org.elasticsearch.health.node.selection.HealthNodeTaskParams params, PersistentTaskState state)	This operation will be executed on the executor node.

Methods inherited from class org.elasticsearch.persistent.PersistentTasksExecutor

getDescription, getExecutor, getTaskName, selectLeastLoadedNode, validate

Methods inherited from class java.lang.Object

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

Field Details

ENABLED_SETTING

public static final Setting<Boolean> ENABLED_SETTING

Constructor Details

HealthNodeTaskExecutor

public HealthNodeTaskExecutor(ClusterService clusterService,
 PersistentTasksService persistentTasksService,
 Settings settings,
 ClusterSettings clusterSettings)

Method Details

nodeOperation

protected void nodeOperation(AllocatedPersistentTask task,
 org.elasticsearch.health.node.selection.HealthNodeTaskParams params,
 PersistentTaskState state)

Description copied from class: PersistentTasksExecutor

This operation will be executed on the executor node.

NOTE: The nodeOperation has to throw an exception, trigger task.markAsCompleted() or task.completeAndNotifyIfNeeded() methods to indicate that the persistent task has finished.

Specified by:

nodeOperation in class PersistentTasksExecutor<org.elasticsearch.health.node.selection.HealthNodeTaskParams>

createTask

protected HealthNode createTask(long id,
 String type,
 String action,
 TaskId parentTaskId,
 PersistentTasksCustomMetadata.PersistentTask<org.elasticsearch.health.node.selection.HealthNodeTaskParams> taskInProgress,
 Map<String,String> headers)

Description copied from class: PersistentTasksExecutor

Creates a AllocatedPersistentTask for communicating with task manager

Overrides:

createTask in class PersistentTasksExecutor<org.elasticsearch.health.node.selection.HealthNodeTaskParams>

getAssignment

public PersistentTasksCustomMetadata.Assignment getAssignment(org.elasticsearch.health.node.selection.HealthNodeTaskParams params,
 Collection<DiscoveryNode> candidateNodes,
 ClusterState clusterState)

Returns the node id from the eligible health nodes

Overrides:

getAssignment in class PersistentTasksExecutor<org.elasticsearch.health.node.selection.HealthNodeTaskParams>

getNamedXContentParsers

public static List<NamedXContentRegistry.Entry> getNamedXContentParsers()

getNamedWriteables

public static List<NamedWriteableRegistry.Entry> getNamedWriteables()