io.airlift.stats

Class JmxGcMonitor

java.lang.Object

io.airlift.stats.JmxGcMonitor

All Implemented Interfaces:

GcMonitor

public class JmxGcMonitor
extends Object
implements GcMonitor

Monitor GC events via JMX. GC events are divided into major and minor using the OpenJDK naming convention for gcAction. Also, application time is calculated using the assumption that major collections stop the application.

Major and minor GCs are logged to standard logging system, which makes it easy to debug the full log stream. TimeStats are exported for major, minor, and application time.

Constructor Summary

Constructors

Constructor and Description
JmxGcMonitor()

Method Summary

Modifier and Type	Method and Description
TimeStat	getMajorGc()
long	getMajorGcCount()
io.airlift.units.Duration	getMajorGcTime()
TimeStat	getMinorGc()
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

JmxGcMonitor

public JmxGcMonitor()

Method Detail

start

@PostConstruct
public void start()

stop

@PreDestroy
public void stop()

getMajorGcCount

public long getMajorGcCount()

Specified by:

getMajorGcCount in interface GcMonitor

getMajorGcTime

public io.airlift.units.Duration getMajorGcTime()

Specified by:

getMajorGcTime in interface GcMonitor

getMajorGc

public TimeStat getMajorGc()

getMinorGc

public TimeStat getMinorGc()