com.netflix.astyanax.connectionpool.impl

Class EmaLatencyScoreStrategyImpl

java.lang.Object

com.netflix.astyanax.connectionpool.impl.AbstractLatencyScoreStrategyImpl

com.netflix.astyanax.connectionpool.impl.EmaLatencyScoreStrategyImpl

All Implemented Interfaces:

LatencyScoreStrategy

public class EmaLatencyScoreStrategyImpl
extends AbstractLatencyScoreStrategyImpl

Calculate latency as an exponential moving average.

Nested Class Summary

Nested classes/interfaces inherited from interface com.netflix.astyanax.connectionpool.LatencyScoreStrategy

LatencyScoreStrategy.Instance, LatencyScoreStrategy.Listener

Field Summary

Fields inherited from class com.netflix.astyanax.connectionpool.impl.AbstractLatencyScoreStrategyImpl

DEFAULT_BLOCKED_THREAD_THRESHOLD, DEFAULT_KEEP_RATIO, DEFAULT_RESET_INTERVAL, DEFAULT_SCORE_THRESHOLD, DEFAULT_UPDATE_INTERVAL

Constructor Summary

Constructors

Constructor and Description
EmaLatencyScoreStrategyImpl(int windowSize)
EmaLatencyScoreStrategyImpl(int updateInterval, int resetInterval, int windowSize)
EmaLatencyScoreStrategyImpl(int updateInterval, int resetInterval, int windowSize, int blockedThreshold, double keepRatio, double scoreThreshold)

Method Summary

Methods

Modifier and Type	Method and Description
LatencyScoreStrategy.Instance	newInstance() Template method for creating a new latency tracking instance for a host

Methods inherited from class com.netflix.astyanax.connectionpool.impl.AbstractLatencyScoreStrategyImpl

createInstance, getBlockedThreshold, getKeepRatio, getResetInterval, getScoreThreshold, getUpdateInterval, removeInstance, reset, shutdown, sortAndfilterPartition, start, update

Methods inherited from class java.lang.Object

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

Constructor Detail

EmaLatencyScoreStrategyImpl

public EmaLatencyScoreStrategyImpl(int updateInterval,
                           int resetInterval,
                           int windowSize,
                           int blockedThreshold,
                           double keepRatio,
                           double scoreThreshold)

EmaLatencyScoreStrategyImpl

public EmaLatencyScoreStrategyImpl(int updateInterval,
                           int resetInterval,
                           int windowSize)

EmaLatencyScoreStrategyImpl

public EmaLatencyScoreStrategyImpl(int windowSize)

Method Detail

newInstance

public final LatencyScoreStrategy.Instance newInstance()

Description copied from class: AbstractLatencyScoreStrategyImpl

Template method for creating a new latency tracking instance for a host

Specified by:

newInstance in class AbstractLatencyScoreStrategyImpl

Returns: