com.hazelcast.internal.diagnostics

Class HealthMonitor

java.lang.Object

com.hazelcast.internal.diagnostics.HealthMonitor

public class HealthMonitor
extends Object

Health monitor periodically prints logs about related internal metrics using the MetricsRegistry to provide 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.
• GroupProperty.HEALTH_MONITORING_THRESHOLD_MEMORY_PERCENTAGE Threshold: Percentage of max memory currently in use
• GroupProperty.HEALTH_MONITORING_THRESHOLD_CPU_PERCENTAGE Threshold: CPU system/process load

Constructor Summary

Constructors

Constructor and Description
HealthMonitor(Node node)

Method Summary

Modifier and Type	Method and Description
HealthMonitor	start()
void	stop()

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()

stop

public void stop()