Package org.apache.flink.runtime.metrics.util

Class SystemResourcesCounter

java.lang.Object

java.lang.Thread

org.apache.flink.runtime.metrics.util.SystemResourcesCounter

All Implemented Interfaces:

Runnable

@ThreadSafe
public class SystemResourcesCounter
extends Thread

Daemon thread probing system resources.

To accurately and consistently report CPU and network usage we have to periodically probe CPU ticks and network sent/received bytes and then convert those values to CPU usage and send/receive byte rates.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
SystemResourcesCounter(Duration probeInterval)

Method Summary

Modifier and Type	Method	Description
double	getCpuIdle()
double	getCpuIrq()
double	getCpuLoad1()
double	getCpuLoad15()
double	getCpuLoad5()
double	getCpuNice()
double	getCpuSoftIrq()
double	getCpuSteal()
double	getCpuSys()
double	getCpuUsage()
double	getCpuUsagePerProcessor(int processor)
double	getCpuUser()
double	getIOWait()
String[]	getNetworkInterfaceNames()
int	getProcessorsCount()
long	getReceiveRatePerInterface(int interfaceNo)
long	getSendRatePerInterface(int interfaceNo)
void	run()
void	shutdown()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

SystemResourcesCounter

public SystemResourcesCounter(Duration probeInterval)

Method Detail

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

shutdown

public void shutdown()
              throws InterruptedException

Throws:

InterruptedException

getCpuUser

public double getCpuUser()

getCpuNice

public double getCpuNice()

getCpuSys

public double getCpuSys()

getCpuIdle

public double getCpuIdle()

getIOWait

public double getIOWait()

getCpuIrq

public double getCpuIrq()

getCpuSoftIrq

public double getCpuSoftIrq()

getCpuSteal

public double getCpuSteal()

getCpuUsage

public double getCpuUsage()

getCpuLoad1

public double getCpuLoad1()

getCpuLoad5

public double getCpuLoad5()

getCpuLoad15

public double getCpuLoad15()

getProcessorsCount

public int getProcessorsCount()

getCpuUsagePerProcessor

public double getCpuUsagePerProcessor(int processor)

getNetworkInterfaceNames

public String[] getNetworkInterfaceNames()

getReceiveRatePerInterface

public long getReceiveRatePerInterface(int interfaceNo)

getSendRatePerInterface

public long getSendRatePerInterface(int interfaceNo)