Home
  •  

Collect .NET Statistic/\% of Exceptions/sec

Microsoft.SystemCenter.Apm.Transaction.ExceptionRateMonitor (UnitMonitor)

Collect .NET Statistic/\% of Exceptions/sec performance counter

Knowledge Base article:

Summary

The instance state becomes unhealthy if the rate of exception events per defined time period exceeds the monitor threshold.

Causes

Transaction exception alerts are generated when the rate of exception events exceeds the configured monitor threshold.

The counter is incremented when an unhandled exception occurs.

Resolutions

To resolve these exceptions, check the exception type and the function from which the exception was thrown. Resolution of these types of problems typically requires access to application source code.

Element properties:

TargetMicrosoft.SystemCenter.Apm.Transaction
Parent MonitorSystem.Health.AvailabilityState
CategoryCustom
EnabledFalse
Instance Name.NET Statistic
Counter Name\% of Exceptions/sec
Alert GenerateTrue
Alert SeverityMatchMonitorHealth
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeSystem.Performance.ConsecutiveSamplesThreshold
RemotableFalse
AccessibilityPublic
Alert Message
.NET Statistic/\% of Exceptions/sec exceeded the threshold
The .NET Statistic/\% of Exceptions/sec performance counter has exceeded the configured threshold of {0}\%. The performance counter value was {1}\%.
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.SystemCenter.Apm.Transaction.ExceptionRateMonitor" Accessibility="Public" Enabled="false" Target="Microsoft.SystemCenter.Apm.Transaction" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="false" Priority="Normal" TypeID="Performance!System.Performance.ConsecutiveSamplesThreshold" ConfirmDelivery="false">

  <Category>Custom</Category>

  <AlertSettings AlertMessage="Microsoft.SystemCenter.Apm.Transaction.ExceptionRateMonitor.AlertMessage">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Target/Property[Type="Microsoft.SystemCenter.Apm.TransactionBase"]/ExceptionRateMonitorThreshold$</AlertParameter1>

      <AlertParameter2>$Data/Context/SampleValue$</AlertParameter2>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="Success" MonitorTypeStateID="ConditionFalse" HealthState="Success"/>

    <OperationalState ID="Warning" MonitorTypeStateID="ConditionTrue" HealthState="Warning"/>

  </OperationalStates>

  <Configuration>

    <ComputerName>$Target/Host/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

    <CounterName>% of Exceptions/sec</CounterName>

    <ObjectName>.NET Statistic</ObjectName>

    <InstanceName>$Target/Property[Type="Microsoft.SystemCenter.Apm.Transaction"]/CounterInstance$</InstanceName>

    <AllInstances>false</AllInstances>

    <Frequency>$Target/Property[Type="Microsoft.SystemCenter.Apm.TransactionBase"]/ExceptionRateMonitorInterval$</Frequency>

    <Threshold>$Target/Property[Type="Microsoft.SystemCenter.Apm.TransactionBase"]/ExceptionRateMonitorThreshold$</Threshold>

    <Direction>greater</Direction>

    <NumSamples>3</NumSamples>

  </Configuration>

</UnitMonitor>