org.elasticsearch.cluster

クラス InternalClusterInfoService

java.lang.Object

org.elasticsearch.common.component.AbstractComponent

org.elasticsearch.cluster.InternalClusterInfoService

すべての実装されたインタフェース:

ClusterInfoService, ClusterStateListener, LocalNodeMasterListener

public class InternalClusterInfoService
extends AbstractComponent
implements ClusterInfoService, LocalNodeMasterListener, ClusterStateListener

InternalClusterInfoService provides the ClusterInfoService interface, routinely updated on a timer. The timer can be dynamically changed by setting the cluster.info.update.interval setting (defaulting to 30 seconds). The InternalClusterInfoService only runs on the master node. Listens for changes in the number of data nodes and immediately submits a ClusterInfoUpdateJob if a node has been added. Every time the timer runs, gathers information about the disk usage and shard sizes across the cluster.

ネストされたクラスのサマリー

ネストされたクラス

修飾子とタイプ	クラスと説明
class	InternalClusterInfoService.SubmitReschedulingClusterInfoUpdatedJob Class used to submit maybeRefresh() on the InternalClusterInfoService threadpool, these jobs will reschedule themselves by placing a new instance of this class onto the scheduled threadpool.

インタフェースから継承されたネストされたクラス/インタフェース org.elasticsearch.cluster.ClusterInfoService

ClusterInfoService.Listener

フィールドのサマリー

フィールド

修飾子とタイプ	フィールドと説明
static String	INTERNAL_CLUSTER_INFO_TIMEOUT
static String	INTERNAL_CLUSTER_INFO_UPDATE_INTERVAL

クラスから継承されたフィールド org.elasticsearch.common.component.AbstractComponent

deprecationLogger, logger, settings

コンストラクタのサマリー

コンストラクタ

コンストラクタと説明
InternalClusterInfoService(Settings settings, NodeSettingsService nodeSettingsService, TransportNodesStatsAction transportNodesStatsAction, TransportIndicesStatsAction transportIndicesStatsAction, ClusterService clusterService, ThreadPool threadPool)

メソッドのサマリー

修飾子とタイプ	メソッドと説明
void	addListener(ClusterInfoService.Listener listener) Add a listener that will be called every time new information is gathered
void	clusterChanged(ClusterChangedEvent event) Called when cluster state changes.
String	executorName() The name of the executor that the implementation of the callbacks of this lister should be executed on.
ClusterInfo	getClusterInfo() The latest cluster information
void	offMaster() Called when the local node used to be the master, a new master was elected and it's no longer the local node.
void	onMaster() Called when local node is elected to be the master
ClusterInfo	refresh() Refreshes the ClusterInfo in a blocking fashion
protected CountDownLatch	updateIndicesStats(ActionListener<IndicesStatsResponse> listener) Retrieve the latest indices stats, calling the listener when complete
protected CountDownLatch	updateNodeStats(ActionListener<NodesStatsResponse> listener) Retrieve the latest nodes stats, calling the listener when complete

クラスから継承されたメソッド org.elasticsearch.common.component.AbstractComponent

logDeprecatedSetting, logRemovedSetting, nodeName

クラスから継承されたメソッド java.lang.Object

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

フィールドの詳細

INTERNAL_CLUSTER_INFO_UPDATE_INTERVAL

public static final String INTERNAL_CLUSTER_INFO_UPDATE_INTERVAL

関連項目:

定数フィールド値

INTERNAL_CLUSTER_INFO_TIMEOUT

public static final String INTERNAL_CLUSTER_INFO_TIMEOUT

関連項目:

定数フィールド値

コンストラクタの詳細

InternalClusterInfoService

@Inject
public InternalClusterInfoService(Settings settings,
                                          NodeSettingsService nodeSettingsService,
                                          TransportNodesStatsAction transportNodesStatsAction,
                                          TransportIndicesStatsAction transportIndicesStatsAction,
                                          ClusterService clusterService,
                                          ThreadPool threadPool)

メソッドの詳細

onMaster

public void onMaster()

インタフェースからコピーされた説明: LocalNodeMasterListener

Called when local node is elected to be the master

定義:

onMaster インタフェース内 LocalNodeMasterListener

offMaster

public void offMaster()

インタフェースからコピーされた説明: LocalNodeMasterListener

Called when the local node used to be the master, a new master was elected and it's no longer the local node.

定義:

offMaster インタフェース内 LocalNodeMasterListener

executorName

public String executorName()

インタフェースからコピーされた説明: LocalNodeMasterListener

The name of the executor that the implementation of the callbacks of this lister should be executed on. The thread that is responsible for managing instances of this lister is the same thread handling the cluster state events. If the work done is the callbacks above is inexpensive, this value may be SAME (indicating that the callbaks will run on the same thread as the cluster state events are fired with). On the other hand, if the logic in the callbacks are heavier and take longer to process (or perhaps involve blocking due to IO operations), prefer to execute them on a separte more appropriate executor (eg. GENERIC or MANAGEMENT).

定義:

executorName インタフェース内 LocalNodeMasterListener

戻り値:

The name of the executor that will run the callbacks of this listener.

clusterChanged

public void clusterChanged(ClusterChangedEvent event)

インタフェースからコピーされた説明: ClusterStateListener

Called when cluster state changes.

定義:

clusterChanged インタフェース内 ClusterStateListener

getClusterInfo

public ClusterInfo getClusterInfo()

インタフェースからコピーされた説明: ClusterInfoService

The latest cluster information

定義:

getClusterInfo インタフェース内 ClusterInfoService

addListener

public void addListener(ClusterInfoService.Listener listener)

インタフェースからコピーされた説明: ClusterInfoService

Add a listener that will be called every time new information is gathered

定義:

addListener インタフェース内 ClusterInfoService

updateNodeStats

protected CountDownLatch updateNodeStats(ActionListener<NodesStatsResponse> listener)

Retrieve the latest nodes stats, calling the listener when complete

戻り値:

a latch that can be used to wait for the nodes stats to complete if desired

updateIndicesStats

protected CountDownLatch updateIndicesStats(ActionListener<IndicesStatsResponse> listener)

Retrieve the latest indices stats, calling the listener when complete

戻り値:

a latch that can be used to wait for the indices stats to complete if desired

refresh

public final ClusterInfo refresh()

Refreshes the ClusterInfo in a blocking fashion