org.elasticsearch.cluster.routing.allocation.decider

クラス ThrottlingAllocationDecider

java.lang.Object

org.elasticsearch.common.component.AbstractComponent

org.elasticsearch.cluster.routing.allocation.decider.AllocationDecider

org.elasticsearch.cluster.routing.allocation.decider.ThrottlingAllocationDecider

public class ThrottlingAllocationDecider
extends AllocationDecider

ThrottlingAllocationDecider controls the recovery process per node in the cluster. It exposes two settings via the cluster update API that allow changes in real-time:

• cluster.routing.allocation.node_initial_primaries_recoveries - restricts the number of initial primary shard recovery operations on a single node. The default is 4
• cluster.routing.allocation.node_concurrent_recoveries - restricts the number of total concurrent shards initializing on a single node. The default is 2

If one of the above thresholds is exceeded per node this allocation decider will return Decision.THROTTLE as a hit to upstream logic to throttle the allocation process to prevent overloading nodes due to too many concurrent recovery processes.

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	CLUSTER_ROUTING_ALLOCATION_CONCURRENT_RECOVERIES
static String	CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_RECOVERIES
static String	CLUSTER_ROUTING_ALLOCATION_NODE_INITIAL_PRIMARIES_RECOVERIES
static int	DEFAULT_CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_RECOVERIES
static int	DEFAULT_CLUSTER_ROUTING_ALLOCATION_NODE_INITIAL_PRIMARIES_RECOVERIES
static String	NAME

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
ThrottlingAllocationDecider(Settings settings, NodeSettingsService nodeSettingsService)

メソッドのサマリー

修飾子とタイプ	メソッドと説明
Decision	canAllocate(RoutingNode node, RoutingAllocation allocation) Returns a Decision whether the given node can allow any allocation at all at this state of the RoutingAllocation.
Decision	canAllocate(ShardRouting shardRouting, RoutingNode node, RoutingAllocation allocation) Returns a Decision whether the given shard routing can be allocated on the given node.

クラスから継承されたメソッド org.elasticsearch.cluster.routing.allocation.decider.AllocationDecider

canAllocate, canAllocate, canRebalance, canRebalance, canRemain

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

NAME

public static final String NAME

関連項目:

定数フィールド値

CLUSTER_ROUTING_ALLOCATION_NODE_INITIAL_PRIMARIES_RECOVERIES

public static final String CLUSTER_ROUTING_ALLOCATION_NODE_INITIAL_PRIMARIES_RECOVERIES

関連項目:

定数フィールド値

CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_RECOVERIES

public static final String CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_RECOVERIES

関連項目:

定数フィールド値

CLUSTER_ROUTING_ALLOCATION_CONCURRENT_RECOVERIES

public static final String CLUSTER_ROUTING_ALLOCATION_CONCURRENT_RECOVERIES

関連項目:

定数フィールド値

DEFAULT_CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_RECOVERIES

public static final int DEFAULT_CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_RECOVERIES

関連項目:

定数フィールド値

DEFAULT_CLUSTER_ROUTING_ALLOCATION_NODE_INITIAL_PRIMARIES_RECOVERIES

public static final int DEFAULT_CLUSTER_ROUTING_ALLOCATION_NODE_INITIAL_PRIMARIES_RECOVERIES

関連項目:

定数フィールド値

コンストラクタの詳細

ThrottlingAllocationDecider

@Inject
public ThrottlingAllocationDecider(Settings settings,
                                           NodeSettingsService nodeSettingsService)

メソッドの詳細

canAllocate

public Decision canAllocate(ShardRouting shardRouting,
                            RoutingNode node,
                            RoutingAllocation allocation)

クラスからコピーされた説明: AllocationDecider

Returns a Decision whether the given shard routing can be allocated on the given node. The default is Decision.ALWAYS.

オーバーライド:

canAllocate クラス内 AllocationDecider

canAllocate

public Decision canAllocate(RoutingNode node,
                            RoutingAllocation allocation)

クラスからコピーされた説明: AllocationDecider

Returns a Decision whether the given node can allow any allocation at all at this state of the RoutingAllocation. The default is Decision.ALWAYS.

オーバーライド:

canAllocate クラス内 AllocationDecider