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A callback function ended with error.

A_callback_function_ended_with_error (Rule)

Knowledge Base article:

Summary

One of ESE Backup's callback functions returned an error.

This can potentially signify a very serious situation in which the backup has failed.

Resolutions

There are several possible causes and resolutions:

1) Log files are missing or not valid and ESE cannot finish log file replay after restoring the database files.

2) You have tried to restore a database and the "allow database to be overwritten by a restore" check box is unchecked.

3) The database was not unmounted before you attempted to restore it from a backup.

4) You have tried to restore a database and the original database display name has been changed or is different (as on a recovery server).

5) The checksum of the log files on the server does not match the checksum of the log files of the backup.

External

For more information about ESE Backup Event 904, see:

Element properties:

TargetMicrosoft.Exchange.Databases
CategoryEventCollection
EnabledTrue
Event_ID904
Event SourceESE BACKUP
Alert GenerateTrue
Alert SeverityWarning
Alert PriorityNormal
RemotableTrue
Alert Message
A callback function ended with error.
{0}
Event LogApplication

Member Modules:

ID Module Type TypeId RunAs 
EventDS DataSource Microsoft.Windows.EventProvider Default
GenerateAlert WriteAction System.Health.GenerateAlert Default

Source Code:

<Rule ID="A_callback_function_ended_with_error" Enabled="onEssentialMonitoring" Target="Exch2003Core!Microsoft.Exchange.Databases" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>EventCollection</Category>

  <DataSources>

    <DataSource ID="EventDS" TypeID="Windows!Microsoft.Windows.EventProvider">

      <ComputerName>.</ComputerName>

      <LogName>Application</LogName>

      <Expression>

        <And>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery>EventDisplayNumber</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>904</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery>PublisherName</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>ESE BACKUP</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

        </And>

      </Expression>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="GenerateAlert" TypeID="SystemHealth!System.Health.GenerateAlert">

      <Priority>1</Priority>

      <Severity>1</Severity>

      <AlertOwner>$Data/PublisherName$</AlertOwner>

      <AlertMessageId>$MPElement[Name="A_callback_function_ended_with_error.AlertMessage"]$</AlertMessageId>

      <AlertParameters>

        <AlertParameter1>$Data/EventDescription$</AlertParameter1>

      </AlertParameters>

      <Suppression>

        <SuppressionValue/>

      </Suppression>

    </WriteAction>

  </WriteActions>

</Rule>