io.quarkus.runtime

Class ThreadPoolConfig

java.lang.Object

io.quarkus.runtime.ThreadPoolConfig

@ConfigRoot(phase=RUN_TIME)
public class ThreadPoolConfig
extends Object

The core thread pool config. This thread pool is responsible for running all blocking tasks.

Field Summary

Fields

Modifier and Type	Field and Description
int	coreThreads The core thread pool size.
float	growthResistance The executor growth resistance.
Duration	keepAliveTime The amount of time in milliseconds a thread will stay alive with no work.
int	maxThreads The maximum number of threads.
int	queueSize The queue size.
Duration	shutdownTimeout The shutdown timeout in milliseconds.

Constructor Summary

Constructors

Constructor and Description
ThreadPoolConfig()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

coreThreads

@ConfigItem(defaultValue="1")
public int coreThreads

The core thread pool size. This number of threads will always be kept alive.

maxThreads

@ConfigItem(defaultValue="0")
public int maxThreads

The maximum number of threads. If this is not specified or <= to zero then it will be automatically sized to 4 * the number of available processors

queueSize

@ConfigItem(defaultValue="0")
public int queueSize

The queue size. For most applications this should be unbounded

growthResistance

@ConfigItem(defaultValue="0")
public float growthResistance

The executor growth resistance. A resistance factor applied after the core pool is full; values applied here will cause that fraction of submissions to create new threads when no idle thread is available. A value of 0.0f implies that threads beyond the core size should be created as aggressively as threads within it; a value of 1.0f implies that threads beyond the core size should never be created.

shutdownTimeout

@ConfigItem(defaultValue="PT60S")
public Duration shutdownTimeout

The shutdown timeout in milliseconds. Defaults to 60s. If all pending work has not been completed by this time then additional threads will be spawned to attempt to finish any pending tasks, and the shutdown process will continue

keepAliveTime

@ConfigItem(defaultValue="PT1S")
public Duration keepAliveTime

The amount of time in milliseconds a thread will stay alive with no work. Defaults to 1 second

Constructor Detail

ThreadPoolConfig

public ThreadPoolConfig()