垃圾回收率

Microsoft.JEE.PerformanceHealth.GarbageCollectorRateMonitor (UnitMonitor)

应用程序服务器的垃圾回收率的性能监视器。

Knowledge Base article:

摘要

垃圾回收率性能监视器跟踪与应用程序服务器关联的 Java 虚拟机上所发生垃圾回收的速率。

原因

不正常状态表示垃圾回收器超过了为应用程序服务器配置的监视阈值。

解决方法

启动具有较大内存配置的应用程序服务器。
将某些部署的应用程序移动到另一个应用程序服务器。

Element properties:

Target

Microsoft.JEE.GarbageCollector

Parent Monitor

System.Health.PerformanceState

Category

PerformanceHealth

Enabled

False

Alert Generate

True

Alert Severity

MatchMonitorHealth

Alert Priority

Normal

Alert Auto Resolve

True

Monitor Type

Microsoft.JEE.ThresholdDeltaUnitMonitor

Remotable

True

Accessibility

Public

Alert Message

超过垃圾回收器率监视器

对于以下应用程序服务器 ID，垃圾回收器率监视器已超出其阈值:{0}，对象名称：{1}，计数器名称：{2}，实例名称： {3}

RunAs

Default

Source Code:

<UnitMonitor ID="Microsoft.JEE.PerformanceHealth.GarbageCollectorRateMonitor" Accessibility="Public" Enabled="false" Target="Microsoft.JEE.GarbageCollector" ParentMonitorID="Health!System.Health.PerformanceState" Remotable="true" Priority="Normal" TypeID="Microsoft.JEE.ThresholdDeltaUnitMonitor" ConfirmDelivery="true">

  <Category>PerformanceHealth</Category>

  <AlertSettings AlertMessage="Microsoft.JEE.PerformanceHealth.GarbageCollectorRateMonitor_AlertMessageResourceID">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

    <AlertParameters>

      <!-- The alert description should include key properties of:   -->

      <!-- * the deep monitored application server                   -->

      <!-- * the performance counter object name                     -->

      <!-- * counter name                                            -->

      <!-- * instance name                                           -->

      <AlertParameter1>$Target/Host/Property[Type="Microsoft.JEE.ApplicationServer.Monitored.Instance"]/Id$</AlertParameter1>

      <AlertParameter2>Garbage Collector</AlertParameter2>

      <AlertParameter3>JVM Garbage Collector Collection Count Change Rate</AlertParameter3>

      <AlertParameter4>$Target/Property[Type="Microsoft.JEE.GarbageCollector"]/GarbageCollectorName$</AlertParameter4>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="Microsoft.JEE.PerformanceHealth.GC.Rate.UnderThreshold" MonitorTypeStateID="UnderThreshold" HealthState="Success"/>

    <OperationalState ID="Microsoft.JEE.PerformanceHealth.GC.Rate.OverThreshold" MonitorTypeStateID="OverThreshold" HealthState="Warning"/>

  </OperationalStates>

  <Configuration>

    <ComputerName>$Target/Host/Property[Type="Microsoft.JEE.ApplicationServer.Monitored.Instance"]/HostName$</ComputerName>

    <Protocol>$Target/Host/Property[Type="Microsoft.JEE.ApplicationServer.Monitored.Instance"]/Protocol$</Protocol>

    <Port>$Target/Host/Property[Type="Microsoft.JEE.ApplicationServer.Monitored.Instance"]/Port$</Port>

    <BaseURL/>

    <URLSuffix/>

    <IntervalSeconds>900</IntervalSeconds>

    <TimeoutSeconds>300</TimeoutSeconds>

    <!-- Need to find the GCCollectionCount that has a sibling element     -->

    <!-- called GCName with a value of (for example) "PS Scavenge"         -->

    <!-- XPath should look like:                                           -->

    <!-- /Stats/GC/Properties/GCCollectionTime[../GCName = "PS Scavenge"]  -->

    <MetricName>/Stats/GC/Properties/GCCollectionCount[../GCName = "$Target/Property[Type="Microsoft.JEE.GarbageCollector"]/GarbageCollectorName$"]$</MetricName>

    <!-- The spec says that a value of 30 GC's per hour is the threshold -->

    <!-- as the monitor runs every 300 seconds (5 mins) an value of 5    -->

    <!-- GC's per interval has been chosen                               -->

    <Threshold>5</Threshold>

    <SampleCount>2</SampleCount>

  </Configuration>

</UnitMonitor>