LS Registrar Dependency Discovery for LS Peer Connection Component

Microsoft.LS.2013.Discovery.Registrar.PeerConnection (Discovery)

Knowledge Base article:

Element properties:

Object Discovery Details:

Member Modules:

Source Code:

<Discovery ID="Microsoft.LS.2013.Discovery.Registrar.PeerConnection" Enabled="true" Target="Microsoft.LS.2013.Component.Registrar" ConfirmDelivery="false" Remotable="true" Priority="Normal">

  <Category>Discovery</Category>

  <DiscoveryTypes>

    <DiscoveryClass TypeID="Microsoft.LS.2013.Dependency.Registrar.PeerConnection"/>

    <DiscoveryRelationship TypeID="Microsoft.LS.2013.Relationship.RegistrarHostsPeerConnection"/>

  </DiscoveryTypes>

  <DataSource ID="Microsoft.LS.2013.Discovery.Dependency.PeerConnection.DS" TypeID="Microsoft.LS.2013.Discovery.Dependency.DS">

    <IntervalSeconds>14400</IntervalSeconds>

    <DependencyId>PeerConnection</DependencyId>

    <DependencyDisplayName>Peer Connection</DependencyDisplayName>

    <ScriptBody><Script>

$DiscoveryData = GetDiscoveryData



$perfCategory = 'LS:SIP - Peers'

$displayName = 'Peer Connection'



# Split the list with ',' and trim the spaces from beginning and end.

# E.g. 'test1, test2,  test3,   test4 ' = {test1,test2,test3,test4}

$ExcludedInstances = 'clients'.Split(',') | % {$_.TrimStart().TrimEnd()}



$perf = New-Object System.Diagnostics.PerformanceCounterCategory($perfCategory);    



if ($perf.CategoryType -eq 'MultiInstance')

{

    $connections = $perf.GetInstanceNames();

    TRACE('Found Multi Instance Performance Counter {0}' -f $perfCategory)



    $component = $DiscoveryData.CreateClassInstance('$MPElement[Name='Microsoft.LS.2013.Component.Registrar']$')

    $component.AddProperty('$MPElement[Name='Windows!Microsoft.Windows.Computer']/PrincipalName$', $TargetComputer)



    foreach ($instance in strip-null($connections))

    {

        # Skip below instances:

        #   1. Make sure the instance name is not empty and exclude '_total'

        #   2. We have seen cases where there is an empty string and causing discovery to fail.

        #   3. Exclude the performance counter instances in the exclusion list.

        if (![string]::IsNullOrEmpty($instance) -and ($instance -ne '_total') -and ($ExcludedInstances -notcontains $instance))

        {

            TRACE('Found Connection {0}' -f $instance)

            $connection = $DiscoveryData.CreateClassInstance('$MPElement[Name='Microsoft.LS.2013.Dependency.Registrar.PeerConnection']$')

            $connection.AddProperty('$MPElement[Name='Windows!Microsoft.Windows.Computer']/PrincipalName$', $TargetComputer)

            $connection.AddProperty('$MPElement[Name='Microsoft.LS.2013.Dependency']/Id$', $instance)

            $connection.AddProperty('$MPElement[Name='System!System.Entity']/DisplayName$', ('{0} [{1}]' -f $displayName , $instance))

            $DiscoveryData.AddInstance($connection)



            $componentHostsDepedencyRelationship =

                $DiscoveryData.CreateRelationshipInstance('$MPElement[Name='Microsoft.LS.2013.Relationship.RegistrarHostsPeerConnection']$');

            $componentHostsDepedencyRelationship.Source = $component;

            $componentHostsDepedencyRelationship.Target = $connection;

            $DiscoveryData.AddInstance($componentHostsDepedencyRelationship);

        }

    }

}</Script></ScriptBody>

  </DataSource>

</Discovery>