Package com.uber.cadence.internal.worker.autoscaler

Class PollerAutoScaler

java.lang.Object

com.uber.cadence.internal.worker.autoscaler.PollerAutoScaler

All Implemented Interfaces:

AutoScaler

public class PollerAutoScaler
extends java.lang.Object
implements AutoScaler

Constructor Summary

Constructors

Constructor	Description
PollerAutoScaler(java.time.Duration coolDownTime, PollerUsageEstimator pollerUsageEstimator, Recommender recommender)

Method Summary

Modifier and Type	Method	Description
void	acquire()	Reduce the number of available locks.
protected int	getSemaphoreSize()
void	increaseActionablePollCount()
void	increaseNoopPollCount()
void	release()	Releases lock into the autoscaler pool.
protected void	resizePollers()
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

PollerAutoScaler

public PollerAutoScaler(java.time.Duration coolDownTime,
                        PollerUsageEstimator pollerUsageEstimator,
                        Recommender recommender)

Method Detail

start

public void start()

Specified by:

start in interface AutoScaler

stop

public void stop()

Specified by:

stop in interface AutoScaler

resizePollers

protected void resizePollers()

acquire

public void acquire()
             throws java.lang.InterruptedException

Description copied from interface: AutoScaler

Reduce the number of available locks. Intended to be blocking operation until lock is acquired.

Specified by:

acquire in interface AutoScaler

Throws:

java.lang.InterruptedException

release

public void release()

Description copied from interface: AutoScaler

Releases lock into the autoscaler pool. Release should be always called in same process, failing to do so is considered a usage error.

Specified by:

release in interface AutoScaler

increaseNoopPollCount

public void increaseNoopPollCount()

Specified by:

increaseNoopPollCount in interface AutoScaler

increaseActionablePollCount

public void increaseActionablePollCount()

Specified by:

increaseActionablePollCount in interface AutoScaler

getSemaphoreSize

protected int getSemaphoreSize()