org.apache.cassandra.utils

Class BackgroundActivityMonitor

java.lang.Object

org.apache.cassandra.utils.BackgroundActivityMonitor

public class BackgroundActivityMonitor
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	BackgroundActivityMonitor.BackgroundActivityReporter

Field Summary

Fields

Modifier and Type	Field and Description
static int	IDLE_INDEX
static int	IOWAIT_INDEX
static int	IRQ_INDEX
static int	NICE_INDEX
static int	SOFTIRQ_INDEX
static int	SYS_INDEX
static int	USER_INDEX

Constructor Summary

Constructors

Constructor and Description
BackgroundActivityMonitor()

Method Summary

Methods

Modifier and Type	Method and Description
double	getIOWait()
double	getNormalizedLoadAvg()
double	getSeverity(java.net.InetAddress endpoint)
void	incrCompactionSeverity(double sev)
void	incrManualSeverity(double sev)

Methods inherited from class java.lang.Object

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

Field Detail

USER_INDEX

public static final int USER_INDEX

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Constant Field Values

NICE_INDEX

public static final int NICE_INDEX

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Constant Field Values

SYS_INDEX

public static final int SYS_INDEX

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Constant Field Values

IDLE_INDEX

public static final int IDLE_INDEX

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Constant Field Values

IOWAIT_INDEX

public static final int IOWAIT_INDEX

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Constant Field Values

IRQ_INDEX

public static final int IRQ_INDEX

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Constant Field Values

SOFTIRQ_INDEX

public static final int SOFTIRQ_INDEX

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Constant Field Values

Constructor Detail

BackgroundActivityMonitor

public BackgroundActivityMonitor()

Method Detail

incrCompactionSeverity

public void incrCompactionSeverity(double sev)

incrManualSeverity

public void incrManualSeverity(double sev)

getIOWait

public double getIOWait()
                 throws java.io.IOException

Throws:

java.io.IOException

getNormalizedLoadAvg

public double getNormalizedLoadAvg()

getSeverity

public double getSeverity(java.net.InetAddress endpoint)