private String getPeriodOfTime(VirtualMachineStatisticsChangedEvent event) {
return TimeUtil.format(config.getMeasurementPeriod());
}
@Override
public void virtualMachineStatisticsChanged(VirtualMachineStatisticsChangedEvent event) {
int highThreshold = config.getHighThresholdPerc();
int lowThreshold = config.getLowThresholdPerc();
double memoryAvg = calcAverageWithinPeriod(event);
if (memoryAvg < 0) return; // period hasn't passed
if (memoryAvg > highThreshold) {
final String groupUid = generateGroupUid(event.getVirtualMachine().getUid());
AlertFactory factory = new AlertFactory();
factory.name(ALERT_NAME);
factory.groupUid(groupUid);
factory.description(
AlertBeanUtils.getGridComponentShortName(event.getVirtualMachine())
+ " Heap memory crossed above a "
+ highThreshold
+ "% threshold, for a period of "
+ TimeUtil.format(config.getMeasurementPeriod())
+ ", with an average memory of "
+ NUMBER_FORMAT.format(memoryAvg)
+ "%");
factory.severity(AlertSeverity.WARNING);
factory.status(AlertStatus.RAISED);
factory.componentUid(event.getVirtualMachine().getUid());
factory.componentDescription(
AlertBeanUtils.getGridComponentDescription(event.getVirtualMachine()));
factory.config(config.getProperties());
factory.putProperty(
HeapMemoryUtilizationAlert.HOST_ADDRESS,
event.getVirtualMachine().getMachine().getHostAddress());
factory.putProperty(
HeapMemoryUtilizationAlert.HOST_NAME,
event.getVirtualMachine().getMachine().getHostName());
factory.putProperty(
HeapMemoryUtilizationAlert.CPU_UTILIZATION,
AlertBeanUtils.getCpuPercToString(event.getStatistics().getCpuPerc()));
factory.putProperty(
HeapMemoryUtilizationAlert.PROCESS_ID,
String.valueOf(event.getVirtualMachine().getDetails().getPid()));
factory.putProperty(
HeapMemoryUtilizationAlert.COMPONENT_NAME,
AlertBeanUtils.getGridComponentFullName(event.getVirtualMachine()));
factory.putProperty(
HeapMemoryUtilizationAlert.HEAP_UTILIZATION,
String.valueOf(event.getStatistics().getMemoryHeapUsedPerc()));
factory.putProperty(
HeapMemoryUtilizationAlert.MAX_HEAP_IN_BYTES,
String.valueOf(event.getVirtualMachine().getDetails().getMemoryHeapMaxInBytes()));
Alert alert = factory.toAlert();
admin.getAlertManager().triggerAlert(new HeapMemoryUtilizationAlert(alert));
} else if (memoryAvg < lowThreshold) {
final String groupUid = generateGroupUid(event.getVirtualMachine().getUid());
Alert[] alertsByGroupUid =
((InternalAlertManager) admin.getAlertManager())
.getAlertRepository()
.getAlertsByGroupUid(groupUid);
if (alertsByGroupUid.length != 0 && !alertsByGroupUid[0].getStatus().isResolved()) {
AlertFactory factory = new AlertFactory();
factory.name(ALERT_NAME);
factory.groupUid(groupUid);
factory.description(
AlertBeanUtils.getGridComponentShortName(event.getVirtualMachine())
+ " Heap memory crossed below a "
+ lowThreshold
+ "% threshold, for a period of "
+ getPeriodOfTime(event)
+ ", with an average memory of "
+ NUMBER_FORMAT.format(memoryAvg)
+ "%");
factory.severity(AlertSeverity.WARNING);
factory.status(AlertStatus.RESOLVED);
factory.componentUid(event.getVirtualMachine().getUid());
factory.componentDescription(
AlertBeanUtils.getGridComponentDescription(event.getVirtualMachine()));
factory.config(config.getProperties());
factory.putProperty(
HeapMemoryUtilizationAlert.HOST_ADDRESS,
event.getVirtualMachine().getMachine().getHostAddress());
factory.putProperty(
HeapMemoryUtilizationAlert.HOST_NAME,
event.getVirtualMachine().getMachine().getHostName());
factory.putProperty(
HeapMemoryUtilizationAlert.CPU_UTILIZATION,
AlertBeanUtils.getCpuPercToString(event.getStatistics().getCpuPerc()));
factory.putProperty(
HeapMemoryUtilizationAlert.PROCESS_ID,
String.valueOf(event.getVirtualMachine().getDetails().getPid()));
factory.putProperty(
HeapMemoryUtilizationAlert.COMPONENT_NAME,
AlertBeanUtils.getGridComponentFullName(event.getVirtualMachine()));
factory.putProperty(
HeapMemoryUtilizationAlert.HEAP_UTILIZATION,
String.valueOf(event.getStatistics().getMemoryHeapUsedPerc()));
factory.putProperty(
HeapMemoryUtilizationAlert.MAX_HEAP_IN_BYTES,
String.valueOf(event.getVirtualMachine().getDetails().getMemoryHeapMaxInBytes()));
Alert alert = factory.toAlert();
admin.getAlertManager().triggerAlert(new HeapMemoryUtilizationAlert(alert));
}
}
}