Module org.elasticsearch.server

Package org.elasticsearch.cluster.routing.allocation

Class WriteLoadConstraintSettings

java.lang.Object

org.elasticsearch.cluster.routing.allocation.WriteLoadConstraintSettings

public class WriteLoadConstraintSettings
extends Object

Settings definitions for the write load allocation decider and associated infrastructure

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	WriteLoadConstraintSettings.WriteLoadDeciderStatus

Field Summary

Fields

Modifier and Type	Field	Description
static final Setting<WriteLoadConstraintSettings.WriteLoadDeciderStatus>	WRITE_LOAD_DECIDER_ENABLED_SETTING
static final Setting<TimeValue>	WRITE_LOAD_DECIDER_HIGH_UTILIZATION_DURATION_SETTING	The duration for which we need to see "high" utilization before we consider the low threshold exceeded
static final Setting<RatioValue>	WRITE_LOAD_DECIDER_HIGH_UTILIZATION_THRESHOLD_SETTING	The threshold over which we consider write thread pool utilization "high"
static final Setting<TimeValue>	WRITE_LOAD_DECIDER_MINIMUM_LOGGING_INTERVAL	The minimum amount of time between logging messages about write load decider interventions
static final Setting<TimeValue>	WRITE_LOAD_DECIDER_QUEUE_LATENCY_THRESHOLD_SETTING	When the decider is WriteLoadConstraintSettings.WriteLoadDeciderStatus.ENABLED, the write-load monitor will call RerouteService.reroute(String, Priority, ActionListener) when we see tasks being delayed by this amount of time (but no more often than WRITE_LOAD_DECIDER_REROUTE_INTERVAL_SETTING)
static final Setting<TimeValue>	WRITE_LOAD_DECIDER_REROUTE_INTERVAL_SETTING	The minimum amount of time between successive calls to reroute to address write load hot-spots

Constructor Summary

Constructors

Constructor	Description
WriteLoadConstraintSettings(ClusterSettings clusterSettings)

Method Summary

Modifier and Type	Method	Description
double	getHighUtilizationThreshold()
TimeValue	getMinimumRerouteInterval()
TimeValue	getQueueLatencyThreshold()
WriteLoadConstraintSettings.WriteLoadDeciderStatus	getWriteLoadConstraintEnabled()

Methods inherited from class java.lang.Object

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

Field Details

WRITE_LOAD_DECIDER_ENABLED_SETTING

public static final Setting<WriteLoadConstraintSettings.WriteLoadDeciderStatus> WRITE_LOAD_DECIDER_ENABLED_SETTING

WRITE_LOAD_DECIDER_HIGH_UTILIZATION_THRESHOLD_SETTING

public static final Setting<RatioValue> WRITE_LOAD_DECIDER_HIGH_UTILIZATION_THRESHOLD_SETTING

The threshold over which we consider write thread pool utilization "high"

WRITE_LOAD_DECIDER_HIGH_UTILIZATION_DURATION_SETTING

public static final Setting<TimeValue> WRITE_LOAD_DECIDER_HIGH_UTILIZATION_DURATION_SETTING

The duration for which we need to see "high" utilization before we consider the low threshold exceeded

WRITE_LOAD_DECIDER_QUEUE_LATENCY_THRESHOLD_SETTING

public static final Setting<TimeValue> WRITE_LOAD_DECIDER_QUEUE_LATENCY_THRESHOLD_SETTING

When the decider is WriteLoadConstraintSettings.WriteLoadDeciderStatus.ENABLED, the write-load monitor will call RerouteService.reroute(String, Priority, ActionListener) when we see tasks being delayed by this amount of time (but no more often than WRITE_LOAD_DECIDER_REROUTE_INTERVAL_SETTING)

WRITE_LOAD_DECIDER_REROUTE_INTERVAL_SETTING

public static final Setting<TimeValue> WRITE_LOAD_DECIDER_REROUTE_INTERVAL_SETTING

The minimum amount of time between successive calls to reroute to address write load hot-spots

WRITE_LOAD_DECIDER_MINIMUM_LOGGING_INTERVAL

public static final Setting<TimeValue> WRITE_LOAD_DECIDER_MINIMUM_LOGGING_INTERVAL

The minimum amount of time between logging messages about write load decider interventions

Constructor Details

WriteLoadConstraintSettings

public WriteLoadConstraintSettings(ClusterSettings clusterSettings)

Method Details

getWriteLoadConstraintEnabled

public WriteLoadConstraintSettings.WriteLoadDeciderStatus getWriteLoadConstraintEnabled()

getMinimumRerouteInterval

public TimeValue getMinimumRerouteInterval()

getQueueLatencyThreshold

public TimeValue getQueueLatencyThreshold()

getHighUtilizationThreshold

public double getHighUtilizationThreshold()

Returns:

The threshold as a ratio - i.e. in [0, 1]