Delta synchronization state

Microsoft.SystemCenter.ManagementConfigurationService.DeltaMonitor (UnitMonitor)

Checks the state of the delta synchronization work item

Knowledge Base article:

Summary

The System Center Management Configuration Service has failed to perform the Configuration Store Delta synchronization state task in an acceptable amount of time.

The purpose of this monitor is to determine if the Configuration Service has failed to run the “DeltaSynchronization “work item over the last 15 minutes (default). The impact of the “DeltaSynchronization” work item failing is during this time the management group could experience inconstant behaviors about its ability to update Agents with new configuration.

Configuration

State: The Delta Synchronization task has run successfully. Event ID 29180 was detected specifying ‘DeltaSynchronization’ as the successful work item.

Yellow State: The local Configuration Service failed to consecutively perform this work item for a period of time. Event ID 29181 was detected specifying ‘DeltaSynchronization’ as the failed work item.

Causes

This can happen when:

The database or database server is unavailable (networking issue, firewall, disk space, etc.)
The System Center Management Configuration Windows Service account no longer has the required access to the database
The “DeltaSynchronization” work item has been disabled in the ConfigService.config file. The ConfigService.config file is located in “%Program Files%\Microsoft System Center\Operations Manager\Server”.

Resolutions

To further investigate the issue, consider the following:

Review the Operations Manager event log for errors indicating problems with the System Center Management Configuration Service. Filter the event log a source of “OpsMgr Management Configuration” to search for errors.
Confirm you are not seeing connection error to the Operations Manager database from the management server in the Operations Manager event log
Using the Operations Manager Console and SQL Server Management Studio, validate the Default Action Account has the correct access to the database where the Operations Manager database is installed. For more information about configuring the Default Action Account please see the Operations Manager Security Guide.
Open the ConfigService.config file and search for “DeltaSynchronization” under WorkItems. Make sure Enabled property is set to true. The ConfigService.config file is located in “%Program Files%\Microsoft System Center\Operations Manager\Server”.

Element properties:

Target	Microsoft.SystemCenter.ManagementConfigurationService
Parent Monitor	Microsoft.SystemCenter.ManagementConfigurationService.SynchronizationWorkItemsMonitor
Category	StateCollection
Enabled	True
Alert Generate	False
Alert Auto Resolve	True
Monitor Type	Microsoft.Windows.2SingleEventLog2StateMonitorType
Remotable	True
Accessibility	Internal
RunAs	Default

Source Code:

<UnitMonitor ID="Microsoft.SystemCenter.ManagementConfigurationService.DeltaMonitor" Accessibility="Internal" Enabled="true" Target="Microsoft.SystemCenter.ManagementConfigurationService" ParentMonitorID="Microsoft.SystemCenter.ManagementConfigurationService.SynchronizationWorkItemsMonitor" Remotable="true" Priority="Normal" TypeID="Windows!Microsoft.Windows.2SingleEventLog2StateMonitorType" ConfirmDelivery="true">

  <Category>StateCollection</Category>

  <OperationalStates>

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

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

  </OperationalStates>

  <Configuration>

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

    <FirstLogName>Operations Manager</FirstLogName>

    <FirstExpression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">29181</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Params/Param[2]</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">DeltaSynchronization</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </FirstExpression>

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

    <SecondLogName>Operations Manager</SecondLogName>

    <SecondExpression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">29180</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Params/Param[2]</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">DeltaSynchronization</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </SecondExpression>

  </Configuration>

</UnitMonitor>