Package org.elasticsearch.cluster

Interface Summary

Interface	Description
AckedClusterStateTaskListener
ClusterInfoService	Interface for a class used to gather information about a cluster at regular intervals
ClusterInfoService.Listener	Interface for listeners to implement in order to perform actions when new information about the cluster has been gathered
ClusterService	The cluster service allowing to both register for cluster state events (ClusterStateListener) and submit state update tasks (ClusterStateUpdateTask.
ClusterState.Custom
ClusterStateListener	A listener to be notified when a cluster state changes.
ClusterStateObserver.ChangePredicate
ClusterStateObserver.Listener
ClusterStateTaskConfig	Cluster state update task configuration for timeout and priority
ClusterStateTaskExecutor.TaskResult.FailureConsumer
ClusterStateTaskListener
Diff<T>	Represents difference between states of cluster state parts
Diffable<T>	Cluster state part, changes in which can be serialized
DiffableUtils.KeyedReader<T>	A reader that can deserialize an object.
LocalNodeMasterListener	Enables listening to master changes events of the local node (when the local node becomes the master, and when the local node cease being a master).
TimeoutClusterStateListener	An exception to cluster state listener that allows for timeouts and for post added notifications.

Class Summary

Class	Description
AbstractAckedClusterStateTaskListener
AbstractClusterStateTaskListener
AbstractDiffable<T extends Diffable<T>>	Abstract diffable object with simple diffs implementation that sends the entire object if object has changed or nothing is object remained the same.
AckedClusterStateUpdateTask<Response>	An extension interface to ClusterStateUpdateTask that allows to be notified when all the nodes have acknowledged a cluster state update request
BasicClusterStateTaskConfig
ClusterChangedEvent	An event received by the local node, signaling that the cluster state has changed.
ClusterInfo	ClusterInfo is an object representing a map of nodes to DiskUsage and a map of shard ids to shard sizes, see InternalClusterInfoService.shardIdentifierFromRouting(String) for the key used in the shardSizes map
ClusterModule	Configures classes and services that affect the entire cluster.
ClusterName
ClusterNameModule
ClusterState	Represents the current state of the cluster.
ClusterState.Builder
ClusterStateNonMasterUpdateTask	This is a marker interface to indicate that the task should be executed even if the current node is not a master.
ClusterStateObserver	A utility class which simplifies interacting with the cluster state in cases where one tries to take action based on the current state but may want to wait for a new state and retry upon failure.
ClusterStateObserver.EventPredicate
ClusterStateObserver.ValidationPredicate
ClusterStateTaskExecutor<T>
ClusterStateTaskExecutor.BatchResult<T>	Represents the result of a batched execution of cluster state update tasks
ClusterStateTaskExecutor.BatchResult.Builder<T>
ClusterStateTaskExecutor.TaskResult
ClusterStateUpdateTask	A task that can update the cluster state.
DiffableUtils
DiffableUtils.PrototypeReader<T extends Diffable<T>>	Implementation of the KeyedReader that is using a prototype object for reading operations Note: this implementation is ignoring the key.
DiskUsage	Encapsulation class used to represent the amount of disk used on a node.
EmptyClusterInfoService	ClusterInfoService that provides empty maps for disk usage and shard sizes
InternalClusterInfoService	InternalClusterInfoService provides the ClusterInfoService interface, routinely updated on a timer.
RestoreInProgress	Meta data about restore processes that are currently executing
RestoreInProgress.Entry	Restore metadata
RestoreInProgress.ShardRestoreStatus	Represents status of a restored shard
SnapshotsInProgress	Meta data about snapshots that are currently executing
SnapshotsInProgress.Entry
SnapshotsInProgress.ShardSnapshotStatus

Enum Summary

Enum	Description
ClusterState.ClusterStateStatus
ClusterState.Metric
RestoreInProgress.State	Shard restore process state
SnapshotsInProgress.State

Exception Summary

Exception	Description
IncompatibleClusterStateVersionException	Thrown by Diff.apply(T) method
NotMasterException	Thrown when a node join request or a master ping reaches a node which is not currently acting as a master or when a cluster state update task is to be executed on a node that is no longer master.