AK588978

Monitor_AK588978 (UnitMonitor)

SQL Server system health extended event session has incorrect event specification

Knowledge Base article:

Element properties:

Source Code:

<UnitMonitor ID="Monitor_AK588978" Comment="SupportTopic=TBD;VersionNumber=1.0.0.0;" Accessibility="Public" Enabled="true" Target="KnowledgeServicesSQLServerLibrary!Microsoft.KnowledgeServices.SQLServer.DBEngine" ParentMonitorID="Health!System.Health.ConfigurationState" Remotable="true" Priority="Normal" TypeID="KnowledgeServicesLibrary!Microsoft.KnowledgeServices.Library.PowerShellMonitorEx" ConfirmDelivery="true">

  <Category>Alert</Category>

  <AlertSettings AlertMessage="MonitorMessage7bbfe1e4e1bd4f538d9ba39be0a72131">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Warning</AlertSeverity>

  </AlertSettings>

  <OperationalStates>

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

    <OperationalState ID="Error" MonitorTypeStateID="Error" HealthState="Error"/>

  </OperationalStates>

  <Configuration>

    <ScriptName>AK588978.ps1</ScriptName>

    <Parameters>

      <Parameter>

        <Name>ConnectionString</Name>

        <Value>$Target/Property[Type="MicrosoftSQLServerLibrary!Microsoft.SQLServer.DBEngine"]/ConnectionString$</Value>

      </Parameter>

      <Parameter>

        <Name>CurrentSQLServerBuildInput</Name>

        <Value>$Target/Property[Type="KnowledgeServicesSQLServerLibrary!Microsoft.KnowledgeServices.SQLServer.DBEngine"]/ProductVersion$</Value>

      </Parameter>

    </Parameters>

    <ScriptBody><Script>





param($ConnectionString,$CurrentSQLServerBuildInput)



$ErrorActionPreference = "Stop"



# Set up the arguments

$scriptargs = new-object psobject

$scriptargs | add-member NoteProperty "ConnectionString" $ConnectionString

$scriptargs | add-member NoteProperty "CurrentSQLServerBuildInput" $CurrentSQLServerBuildInput



# Set up the output

$global:scriptoutput = new-object psobject

$scriptoutput | add-member NoteProperty "HasIssue" $false

#----------------------------------------------------- 

# MAIN CODE SECTION

#----------------------------------------------------- 



# Environment



$scriptenv = New-Object psobject

$scriptenv | Add-Member NoteProperty "RuntimeError" $false

$scriptenv | Add-Member NoteProperty "IncorrectMapKeysEnv" $false

$scriptenv | Add-Member NoteProperty "CurrentSQLServerBuildEnv" ""





function CheckIfSystemHealthHasIncorrectMapKeys()

{

	#CheckIfSystemHealthHasIncorrectMapKeys = "SELECT COUNT(*) FROM sys.server_event_session_events ese JOIN sys.server_event_sessions se ON se.event_session_id = ese.event_session_id WHERE se.name = N'system_health' AND ese.name = N'wait_info' AND ese.predicate LIKE N'%wait_type]=(107)%' AND ese.predicate LIKE N'%wait_type]=(113)%'"

	#return IncorrectMapKeysEnv 



	# Create SqlConnection object and define connection string 

	$oConnection = New-Object System.Data.SqlClient.SqlConnection 

	$oConnection.ConnectionString = "Server=" + $scriptargs.ConnectionString + ";" + "Database=master;Integrated Security=true" 

	$oConnection.Open()



	# Create SqlCommand object, define command text, and set the connection

	$oSQLCommand = New-Object System.Data.SqlClient.SqlCommand

	$oSQLCommand.CommandText = "SELECT COUNT(*) FROM sys.server_event_session_events ese JOIN sys.server_event_sessions se ON se.event_session_id = ese.event_session_id WHERE se.name = N'system_health' AND ese.name = N'wait_info' AND ese.predicate LIKE N'%wait_type]=(107)%' AND ese.predicate LIKE N'%wait_type]=(113)%'" 

	$oSQLCommand.Connection = $oConnection 

	

	# Execute Command 

	$result = $oSQLCommand.ExecuteScalar()

	

	if($result -eq 1)

	{

		$scriptenv.IncorrectMapKeysEnv = $true

	}



	# Close SqlConnection object

	$oConnection.Close()

}





# Main function



function AdvisorRule($scriptargs, $scriptoutput)

{ 

	# All parameters should be populated outside of the main function. 

	# The mian function should only include the detection logic so that it can be easyly reused by the Atlanta authoring tool.



	trap [Exception] {

		$scriptenv.RuntimeError = $true

      	continue; 

   	}

	# Initialize parameters

	$scriptoutput.HasIssue = $false

	

	# Set parameter values

	CheckIfSystemHealthHasIncorrectMapKeys

	$scriptenv.CurrentSQLServerBuildEnv = $scriptargs.CurrentSQLServerBuildInput

	

	if($scriptenv.RuntimeError -eq $false)

	{

		if(([version]$scriptenv.CurrentSQLServerBuildEnv).Major -eq 11)

		{

			if($scriptenv.IncorrectMapKeysEnv -eq $true)

			{

				$scriptoutput.HasIssue = $true

			}

		}

	}

}

AdvisorRule $scriptargs $scriptoutput



# set the output

$mom = new-object -comobject "MOM.ScriptAPI"

$bag = $mom.CreatePropertyBag()



if ($scriptoutput.HasIssue -ne $null)

{

	$bag.AddValue("HasIssue", $scriptoutput.HasIssue)

}



$bag



</Script></ScriptBody>

    <SnapIns/>

    <TimeoutSeconds>300</TimeoutSeconds>

    <Schedule>86397</Schedule>

    <ErrorExpression>

      <SimpleExpression>

        <ValueExpression>

          <XPathQuery Type="Boolean">Property[@Name='HasIssue']</XPathQuery>

        </ValueExpression>

        <Operator>Equal</Operator>

        <ValueExpression>

          <Value Type="Boolean">true</Value>

        </ValueExpression>

      </SimpleExpression>

    </ErrorExpression>

    <SuccessExpression>

      <Not>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="Boolean">Property[@Name='HasIssue']</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="Boolean">true</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </Not>

    </SuccessExpression>

  </Configuration>

</UnitMonitor>