org.openspaces.admin.alert.alerts

Class HeapMemoryUtilizationAlert

java.lang.Object

org.openspaces.admin.alert.alerts.AbstractAlert

org.openspaces.admin.alert.alerts.HeapMemoryUtilizationAlert

All Implemented Interfaces:

Externalizable, Serializable, Alert

public class HeapMemoryUtilizationAlert
extends AbstractAlert

A heap memory utilization alert, fired upon triggered JVM heap-memory thresholds. The alert is raised when heap memory crosses a 'high' threshold for a specified period of time. The alert is resolved when heap-memory crosses a 'low' threshold for a specified period of time.

These thresholds can be configured by using the HeapMemoryUtilizationAlertConfigurer.

This alert will be received on the call to AlertTriggeredEventListener.alertTriggered(Alert) for registered listeners.

Since:

8.0

Author:

Moran Avigdor

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	COMPONENT_NAME
static String	CPU_UTILIZATION
static String	HEAP_UTILIZATION
static String	HOST_ADDRESS
static String	HOST_NAME
static String	MAX_HEAP_IN_BYTES
static String	PROCESS_ID

Constructor Summary

Constructors

Constructor and Description
HeapMemoryUtilizationAlert() required by java.io.Externalizable
HeapMemoryUtilizationAlert(Alert alert)

Method Summary

Modifier and Type	Method and Description
String	getComponentName() The name of the component for which the alert was fired (e.g.
String	getComponentUid() The component UID is equivalent to VirtualMachine.getUid()
Double	getCpuUtilization() The CPU utilization reading when this alert was fired.
Double	getHeapUtilization() The Heap utilization reading when this alert was fired.
String	getHostAddress() The host address of the machine that this alert corresponds to.
String	getHostName() The host name of the machine that this alert corresponds to.
Long	getMaxHeapInBytes() The maximum amount of memory in bytes that can be used for memory management.
String	getProcessId() The process id of the component for which the alert was fired.

Methods inherited from class org.openspaces.admin.alert.alerts.AbstractAlert

getAlert, getAlertUid, getComponentDescription, getConfig, getDescription, getGroupUid, getName, getProperties, getSeverity, getStatus, getTimestamp, readExternal, toString, writeExternal

Methods inherited from class java.lang.Object

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

Field Detail

HOST_ADDRESS

public static final String HOST_ADDRESS

See Also:

Constant Field Values

HOST_NAME

public static final String HOST_NAME

See Also:

Constant Field Values

CPU_UTILIZATION

public static final String CPU_UTILIZATION

See Also:

Constant Field Values

PROCESS_ID

public static final String PROCESS_ID

See Also:

Constant Field Values

COMPONENT_NAME

public static final String COMPONENT_NAME

See Also:

Constant Field Values

HEAP_UTILIZATION

public static final String HEAP_UTILIZATION

See Also:

Constant Field Values

MAX_HEAP_IN_BYTES

public static final String MAX_HEAP_IN_BYTES

See Also:

Constant Field Values

Constructor Detail

HeapMemoryUtilizationAlert

public HeapMemoryUtilizationAlert()

required by java.io.Externalizable

HeapMemoryUtilizationAlert

public HeapMemoryUtilizationAlert(Alert alert)

Method Detail

getComponentUid

public String getComponentUid()

The component UID is equivalent to VirtualMachine.getUid()

Specified by:

getComponentUid in interface Alert

Overrides:

getComponentUid in class AbstractAlert

Returns:

Component UID - the unique identifier of the component associated with the alert.

getHostAddress

public String getHostAddress()

The host address of the machine that this alert corresponds to.

Returns:

the host address; may be null.

getHostName

public String getHostName()

The host name of the machine that this alert corresponds to.

Returns:

the host name; may be null.

getCpuUtilization

public Double getCpuUtilization()

The CPU utilization reading when this alert was fired.

Returns:

the CPU utilization; may be null.

getProcessId

public String getProcessId()

The process id of the component for which the alert was fired.

Returns:

the process id (pid); may be null.

getComponentName

public String getComponentName()

The name of the component for which the alert was fired (e.g. 'Grid Service Agent', 'Grid Service Manager', 'Grid Service Container', 'Lookup Service').

Returns:

the name of the component.

getHeapUtilization

public Double getHeapUtilization()

The Heap utilization reading when this alert was fired.

Returns:

the Heap utilization; may be null.

getMaxHeapInBytes

public Long getMaxHeapInBytes()

The maximum amount of memory in bytes that can be used for memory management. This method returns -1 if the maximum memory size (-Xmx) is undefined.

Returns:

the Heap utilization; may be null.