Module org.elasticsearch.server

Package org.elasticsearch.health.node.selection

Class HealthNode

java.lang.Object

org.elasticsearch.tasks.Task

org.elasticsearch.tasks.CancellableTask

org.elasticsearch.persistent.AllocatedPersistentTask

org.elasticsearch.health.node.selection.HealthNode

All Implemented Interfaces:

Traceable

public class HealthNode
extends AllocatedPersistentTask

Main component used for selecting the health node of the cluster

Nested Class Summary

Nested classes/interfaces inherited from class org.elasticsearch.persistent.AllocatedPersistentTask

AllocatedPersistentTask.State

Nested classes/interfaces inherited from class org.elasticsearch.tasks.CancellableTask

CancellableTask.CancellationListener

Nested classes/interfaces inherited from class org.elasticsearch.tasks.Task

Task.Status

Field Summary

Fields

Modifier and Type	Field	Description
static final String	TASK_NAME

Fields inherited from class org.elasticsearch.tasks.Task

APM_TRACE_CONTEXT, HEADERS_TO_COPY, TRACE_ID, TRACE_PARENT, TRACE_PARENT_HTTP_HEADER, TRACE_START_TIME, TRACE_STATE, X_ELASTIC_PRODUCT_ORIGIN_HTTP_HEADER, X_OPAQUE_ID_HTTP_HEADER

Method Summary

Modifier and Type	Method	Description
static DiscoveryNode	findHealthNode(ClusterState clusterState)
static PersistentTasksCustomMetadata.PersistentTask<?>	findTask(ClusterState clusterState)
protected void	onCancelled()	Called after the task is cancelled so that it can take any actions that it has to take.

Methods inherited from class org.elasticsearch.persistent.AllocatedPersistentTask

getAllocationId, getFailure, getPersistentTaskId, getStatus, init, isCompleted, markAsCancelled, markAsCompleted, markAsFailed, markAsLocallyAborted, updatePersistentTaskState, waitForPersistentTask

Methods inherited from class org.elasticsearch.tasks.CancellableTask

addListener, ensureNotCancelled, getReasonCancelled, isCancelled, notifyIfCancelled, shouldCancelChildrenOnCancellation

Methods inherited from class org.elasticsearch.tasks.Task

getAction, getDescription, getHeader, getId, getParentTaskId, getSpanId, getStartTime, getStartTimeNanos, getType, headers, result, result, taskInfo, taskInfo, toString

Methods inherited from class java.lang.Object

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

Field Details

TASK_NAME

public static final String TASK_NAME

See Also:

• Constant Field Values

Method Details

onCancelled

protected void onCancelled()

Description copied from class: CancellableTask

Called after the task is cancelled so that it can take any actions that it has to take.

Overrides:

onCancelled in class CancellableTask

findTask

@Nullable
public static PersistentTasksCustomMetadata.PersistentTask<?> findTask(ClusterState clusterState)

findHealthNode

@Nullable
public static DiscoveryNode findHealthNode(ClusterState clusterState)