org.glassfish.admin.monitor.jvm

Class JVMThreadSystemStatsProvider

java.lang.Object

org.glassfish.admin.monitor.jvm.JVMThreadSystemStatsProvider

@AMXMetadata(type="thread-system-mon",
             group="monitoring")
 @ManagedObject
 @Description(value="JVM Thread System Statistics")
public class JVMThreadSystemStatsProvider
extends Object

Base class providing the MBean to monitor JVM thread system statistics

The MBean will of the format amx:pp=/mon/server-mon[server],type=thread-system-mon,name=jvm/thread-system and can be enabled by turning the Jvm monitoring level in the admin console to LOW

Since:

v2

Constructor Summary

Constructors

Constructor and Description
JVMThreadSystemStatsProvider()

Method Summary

Modifier and Type	Method and Description
org.glassfish.external.statistics.StringStatistic	getAllThreadIds() Returns all live thread IDs
org.glassfish.external.statistics.CountStatistic	getCpuUsage()
org.glassfish.external.statistics.CountStatistic	getCurrentThreadCpuTime() Returns the total CPU time for the current thread in nanoseconds
org.glassfish.external.statistics.CountStatistic	getCurrentThreadUserTime() Returns the CPU time that the current thread has executed in user mode in nanoseconds
org.glassfish.external.statistics.CountStatistic	getDaemonThreadCount() Returns the current number of live daemon threads
org.glassfish.external.statistics.StringStatistic	getDeadlockedThreads() Finds cycles of threads that are in deadlock waiting to acquire object monitors or ownable synchronizers
org.glassfish.external.statistics.StringStatistic	getMonitorDeadlockedThreads() Finds cycles of threads that are in deadlock waiting to acquire object monitors
org.glassfish.external.statistics.CountStatistic	getPeakThreadCount() Returns the peak live thread count since the Java virtual machine started or peak was reset
org.glassfish.external.statistics.CountStatistic	getThreadCount() Returns the current number of live threads including both daemon and non-daemon threads
org.glassfish.external.statistics.CountStatistic	getTotalStartedThreadCount() Returns the total number of threads created and also started since the Java virtual machine started

Methods inherited from class java.lang.Object

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

Constructor Detail

JVMThreadSystemStatsProvider

public JVMThreadSystemStatsProvider()

Method Detail

getAllThreadIds

@ManagedAttribute(id="allthreadids")
 @Description(value="Returns all live thread IDs")
public org.glassfish.external.statistics.StringStatistic getAllThreadIds()

Returns all live thread IDs

Returns:

a StringStatistic with a comma separated list of all live thread IDs

getCurrentThreadCpuTime

@ManagedAttribute(id="currentthreadcputime")
 @Description(value="Returns the total CPU time for the current thread in nanoseconds")
public org.glassfish.external.statistics.CountStatistic getCurrentThreadCpuTime()

Returns the total CPU time for the current thread in nanoseconds

Returns:

a CountStatistic with the time in nanoseconds

getCurrentThreadUserTime

@ManagedAttribute(id="currentthreadusertime")
 @Description(value="Returns the CPU time that the current thread has executed in user mode in nanoseconds")
public org.glassfish.external.statistics.CountStatistic getCurrentThreadUserTime()

Returns the CPU time that the current thread has executed in user mode in nanoseconds

Returns:

a CountStatistic with the time in nanoseconds

getDaemonThreadCount

@ManagedAttribute(id="daemonthreadcount")
 @Description(value="Returns the current number of live daemon threads")
public org.glassfish.external.statistics.CountStatistic getDaemonThreadCount()

Returns the current number of live daemon threads

Returns:

a CountStatistic with thenumber of threads

getDeadlockedThreads

@ManagedAttribute(id="deadlockedthreads")
 @Description(value="Finds cycles of threads that are in deadlock waiting to acquire object monitors or ownable synchronizers")
public org.glassfish.external.statistics.StringStatistic getDeadlockedThreads()

Finds cycles of threads that are in deadlock waiting to acquire object monitors or ownable synchronizers

Returns:

A StringStatistic with a comma separated list of deadlocked threads or the string "None of the threads are deadlocked." if there are no deadlocked threads

getMonitorDeadlockedThreads

@ManagedAttribute(id="monitordeadlockedthreads")
 @Description(value="Finds cycles of threads that are in deadlock waiting to acquire object monitors")
public org.glassfish.external.statistics.StringStatistic getMonitorDeadlockedThreads()

Finds cycles of threads that are in deadlock waiting to acquire object monitors

Returns:

A StringStatistic with a comma separated list of deadlocked threads or the string "None of the threads are monitor deadlocked." if there are no deadlocked threads

getPeakThreadCount

@ManagedAttribute(id="peakthreadcount")
 @Description(value="Returns the peak live thread count since the Java virtual machine started or peak was reset")
public org.glassfish.external.statistics.CountStatistic getPeakThreadCount()

Returns the peak live thread count since the Java virtual machine started or peak was reset

Returns:

a CountStatistic with the highest number of threads

getThreadCount

@ManagedAttribute(id="threadcount")
 @Description(value="Returns the current number of live threads including both daemon and non-daemon threads")
public org.glassfish.external.statistics.CountStatistic getThreadCount()

Returns the current number of live threads including both daemon and non-daemon threads

Returns:

A CountStatistic with the current number of threads

getTotalStartedThreadCount

@ManagedAttribute(id="totalstartedthreadcount")
 @Description(value="Returns the total number of threads created and also started since the Java virtual machine started")
public org.glassfish.external.statistics.CountStatistic getTotalStartedThreadCount()

Returns the total number of threads created and also started since the Java virtual machine started

Returns:

a CountStatistic with the total number of threads

getCpuUsage

@ManagedAttribute(id="cpuusage")
 @Description(value="Returns the CPU usage in percent.")
public org.glassfish.external.statistics.CountStatistic getCpuUsage()