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MSSQL 2016: Log Apply Pending Queue

Microsoft.SQLServer.2016.AlwaysOn.LogApplyPendingQueue (Rule)

Number of log blocks pending to be applied to the database replica.

Knowledge Base article:

Summary

Number of log blocks pending to be applied to the database replica.

Overrideable Parameters

Name

Description

Default Value

Enabled

Enables or disables the workflow.

Yes

Frequency (seconds)

The recurring interval of time in seconds in which to run the workflow.

900

Element properties:

TargetMicrosoft.SQLServer.2016.AlwaysOn.DatabaseReplica
CategoryPerformanceCollection
EnabledTrue
Instance Name$Target/Property[Type="AlwaysOnDisc!Microsoft.SQLServer.2016.AlwaysOn.DatabaseReplica"]/PerformanceObjectName$:Database Replica
Counter NameLog Apply Pending Queue
Frequency900
Alert GenerateFalse
RemotableTrue

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource System.Performance.DataProvider Default
PerfMapper ConditionDetection System.Performance.DataGenericMapper Default
WriteToDB WriteAction Microsoft.SystemCenter.CollectPerformanceData Default
WriteToDW WriteAction Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData Default

Source Code:

<Rule ID="Microsoft.SQLServer.2016.AlwaysOn.LogApplyPendingQueue" Enabled="true" Target="AlwaysOnDisc!Microsoft.SQLServer.2016.AlwaysOn.DatabaseReplica" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>PerformanceCollection</Category>

  <DataSources>

    <DataSource ID="DS" TypeID="Performance!System.Performance.DataProvider">

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

      <CounterName>Log Apply Pending Queue</CounterName>

      <ObjectName>$Target/Property[Type="AlwaysOnDisc!Microsoft.SQLServer.2016.AlwaysOn.DatabaseReplica"]/PerformanceObjectName$:Database Replica</ObjectName>

      <InstanceName>$Target/Property[Type="AlwaysOnDisc!Microsoft.SQLServer.2016.AlwaysOn.DatabaseReplica"]/AvailabilityDatabaseName$</InstanceName>

      <AllInstances>false</AllInstances>

      <Frequency>900</Frequency>

    </DataSource>

  </DataSources>

  <ConditionDetection ID="PerfMapper" TypeID="Performance!System.Performance.DataGenericMapper">

    <ObjectName>SQL Database Replica</ObjectName>

    <CounterName>$Data/CounterName$</CounterName>

    <InstanceName/>

    <Value>$Data/Value$</Value>

  </ConditionDetection>

  <WriteActions>

    <WriteAction ID="WriteToDB" TypeID="SC!Microsoft.SystemCenter.CollectPerformanceData"/>

    <WriteAction ID="WriteToDW" TypeID="SCDW!Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData"/>

  </WriteActions>

</Rule>