com.hazelcast.internal.monitors

Class HealthMonitor

java.lang.Object

com.hazelcast.internal.monitors.HealthMonitor

public class HealthMonitor
extends Object

Health monitor periodically prints logs about related internal metrics using the MetricsRegistry to provides some clues about the internal Hazelcast state.

Health monitor can be configured with system properties.

GroupProperty.HEALTH_MONITORING_LEVEL This property can be one of the following: HealthMonitorLevel.NOISY => does not check threshold, always prints. HealthMonitorLevel.SILENT => prints only if metrics are above threshold (default). HealthMonitorLevel.OFF => does not print anything.

GroupProperty.HEALTH_MONITORING_DELAY_SECONDS Time between printing two logs of health monitor. Default values is 30 seconds.

Constructor Summary

Constructors

Constructor and Description
HealthMonitor(Node node)

Method Summary

Methods

Modifier and Type	Method and Description
static String	numberToUnit(long number)
static String	percentageString(double p) Given a number, returns that number as a percentage string.
HealthMonitor	start()

Methods inherited from class java.lang.Object

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

Constructor Detail

HealthMonitor

public HealthMonitor(Node node)

Method Detail

start

public HealthMonitor start()

percentageString

public static String percentageString(double p)

Given a number, returns that number as a percentage string.

Parameters:

p - the given number

Returns:

a string of the given number as a format float with two decimal places and a period

numberToUnit

public static String numberToUnit(long number)