MSSQL on Windows: Merge Target Checkpoint File Pairs

Microsoft.SQLServer.Windows.CollectionRule.DBFileGroupFx.CheckpointFile.MergeTarget (Rule)

Collects the number of merge target checkpoint file pairs in Memory-Optimized Data Filegroup.

Knowledge Base article:

Summary

The rule collects the number of merge target checkpoint file pairs in Memory-Optimized Data Filegroup.

The target of merge operations - these checkpoint files store the consolidated data rows from the source files that were identified by the merge policy. Once the merge is installed, the MERGE TARGET transitions into ACTIVE state.

Overridable Parameters

Name	Description	Default Value
Enabled	Enables or disables the workflow.	Yes
Interval (seconds)	The recurring interval of time in seconds in which to run the workflow.	900
Synchronization Time	The synchronization time specified by using a 24-hour format. May be omitted.
Timeout (seconds)	Specifies the time the workflow is allowed to run before being closed and marked as failed.	300
Timeout for query execution (seconds)	The workflow will fail and register an event, if the query execution takes longer than the specified period.	60
Timeout for database connection (seconds)	The workflow will fail and register an event, if it cannot access the database during the specified period.	15

Element properties:

Target	Microsoft.SQLServer.Windows.DBFilegroupFx
Category	PerformanceCollection
Enabled	True
Alert Generate	False
Remotable	True

Member Modules:

ID	Module Type	TypeId	RunAs
DS	DataSource	Microsoft.SQLServer.Windows.DataSource.HKFilePairs	Default
Mapper	ConditionDetection	System.Performance.DataGenericMapper	Default
WriteToDB	WriteAction	Microsoft.SystemCenter.CollectPerformanceData	Default
WriteToDW	WriteAction	Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData	Default

Source Code:

<Rule ID="Microsoft.SQLServer.Windows.CollectionRule.DBFileGroupFx.CheckpointFile.MergeTarget" Target="SqlDiscW!Microsoft.SQLServer.Windows.DBFilegroupFx" Enabled="true">

  <Category>PerformanceCollection</Category>

  <DataSources>

    <DataSource ID="DS" TypeID="Microsoft.SQLServer.Windows.DataSource.HKFilePairs">

      <MachineName>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/MachineName$</MachineName>

      <NetbiosComputerName>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/NetbiosComputerName$</NetbiosComputerName>

      <InstanceName>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/InstanceName$</InstanceName>

      <ConnectionString>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/ConnectionString$</ConnectionString>

      <InstanceVersion>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/Version$</InstanceVersion>

      <InstanceEdition>$Target/Host/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.DBEngine"]/Edition$</InstanceEdition>

      <MonitoringType>$Target/Host/Host/Property[Type="SqlDiscW!Microsoft.SQLServer.Windows.DBEngine"]/MonitoringType$</MonitoringType>

      <DatabaseName>$Target/Host/Property[Type="SqlCoreLib!Microsoft.SQLServer.Core.Database"]/DatabaseName$</DatabaseName>

      <State>3</State>

      <SqlExecTimeoutSeconds>60</SqlExecTimeoutSeconds>

      <SqlTimeoutSeconds>15</SqlTimeoutSeconds>

      <TimeoutSeconds>300</TimeoutSeconds>

      <IntervalSeconds>900</IntervalSeconds>

      <SyncTime/>

    </DataSource>

  </DataSources>

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

    <ObjectName>Memory-Optimized Filegroup</ObjectName>

    <CounterName>Merge Target Checkpoint File Pairs</CounterName>

    <InstanceName/>

    <Value>$Data/Property[@Name='Count']$</Value>

  </ConditionDetection>

  <WriteActions>

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

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

  </WriteActions>

</Rule>