Mediation server service - Major proxy peer call completion failure

Microsoft.LS.2019.Monitoring.UnitMonitor.PairedEvent.MediationServer.MEDIATIONSERVER_MAJOR_PROXY_PEER_CALL_COMPLETION_FAILURE_ALARM (UnitMonitor)

Knowledge Base article:

Summary

The Mediation Server service has encountered a major call completion problem with the Front End.

Causes

Calls to this Front End failed 5 times with failure final responses. Check other MOM alerts for more details.

Resolutions

If the failure is due to CALL_FAILURES_DUE_TO_UNEXPECTED_PROXY_INTERACTION, there is some internal issue with the Front End's link to the Mediation Server (misconfiguration, load) that is causing it not to complete calls. Please consult the failure reports on the Monitoring Server for more details.

Element properties:

Target

Microsoft.LS.2019.Component.MediationServer

Parent Monitor

System.Health.AvailabilityState

Category

AvailabilityHealth

Enabled

True

Alert Generate

True

Alert Severity

Error

Alert Priority

High

Alert Auto Resolve

True

Monitor Type

Microsoft.LS.2019.MonitorType.PairedEvent.Simple

Remotable

True

Accessibility

Public

Alert Message

[Skype] The Mediation Server service has encountered a major call completion problem with the Front End.

{0}

Please see the 'Product Knowledge' and the 'Alert Context' tab on Alert Properties view for more information.

RunAs

Default

Source Code:

<UnitMonitor ID="Microsoft.LS.2019.Monitoring.UnitMonitor.PairedEvent.MediationServer.MEDIATIONSERVER_MAJOR_PROXY_PEER_CALL_COMPLETION_FAILURE_ALARM" Accessibility="Public" Enabled="true" Target="SFBDiscovery!Microsoft.LS.2019.Component.MediationServer" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Microsoft.LS.2019.MonitorType.PairedEvent.Simple" ConfirmDelivery="true">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Alert_The_Mediation_Server_service_has_encountered_a_major_call_completion_problem_with_the_Front_End.">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>High</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters>

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

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="Microsoft.LS.2019.Monitoring.UnitMonitor.PairedEvent.MediationServer.MEDIATIONSERVER_MAJOR_PROXY_PEER_CALL_COMPLETION_FAILURE_ALARM.Success" MonitorTypeStateID="SuccessEventRaised" HealthState="Success"/>

    <OperationalState ID="Microsoft.LS.2019.Monitoring.UnitMonitor.PairedEvent.MediationServer.MEDIATIONSERVER_MAJOR_PROXY_PEER_CALL_COMPLETION_FAILURE_ALARM.Error" MonitorTypeStateID="ErrorEventRaised" HealthState="Error"/>

  </OperationalStates>

  <Configuration>

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

    <LogName>Lync Server</LogName>

    <SuccessExpression>

      <Or>

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

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

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="UnsignedInteger">25068</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="String">LS Mediation Server</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </And>

        </Expression>

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

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

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="UnsignedInteger">25002</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="String">LS Mediation Server</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </And>

        </Expression>

      </Or>

    </SuccessExpression>

    <ErrorExpression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

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

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">25067</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">PublisherName</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">LS Mediation Server</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </ErrorExpression>

  </Configuration>

</UnitMonitor>