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Availability Replica Connection

Microsoft.SQLServer.2012.AlwaysOn.AvailabilityReplicaIsConnected (UnitMonitor)

Knowledge Base article:

Summary

This monitor checks the connection state between availability replicas. The monitor is in unhealthy state when the availability replica’s connection state is DISCONNECTED. The monitor is healthy otherwise.

Causes

This secondary replica is not connected to the primary replica. The connected state is DISCONNECTED.

Resolutions

Overridable Parameters

Name

Description

Default Value

Enabled

Enables or disables the workflow.

Yes

Generates Alerts

Defines whether the workflow generates an Alert.

No

Interval (seconds)

The recurring interval of time in seconds in which to run the workflow.

900

Policy Name

 

$Target/Property[Type="AlwaysOnDisc!Microsoft.SQLServer.2012.AlwaysOn.AvailabilityReplica"]/AvailabilityGroupName$-$Target/Property[Type="System!System.Entity"]/DisplayName$-AlwaysOnArConnectionHealthPolicy

Timeout (seconds)

Specifies the time the workflow is allowed to run before being closed and marked as failed.

300

Element properties:

TargetMicrosoft.SQLServer.2012.AlwaysOn.AvailabilityReplica
Parent MonitorSystem.Health.AvailabilityState
CategoryAvailabilityHealth
EnabledTrue
Alert GenerateFalse
Alert Auto ResolveFalse
Monitor TypeMicrosoft.SQLServer.2012.AlwaysOn.SystemPolicyScriptMonitorType
RemotableTrue
AccessibilityPublic
RunAsMicrosoft.SQLServer.2012.AlwaysOn.MonitoringAccount

Source Code:

<UnitMonitor ID="Microsoft.SQLServer.2012.AlwaysOn.AvailabilityReplicaIsConnected" RunAs="Microsoft.SQLServer.2012.AlwaysOn.MonitoringAccount" TypeID="Microsoft.SQLServer.2012.AlwaysOn.SystemPolicyScriptMonitorType" Accessibility="Public" Enabled="true" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Target="AlwaysOnDisc!Microsoft.SQLServer.2012.AlwaysOn.AvailabilityReplica" Priority="Normal">

  <Category>AvailabilityHealth</Category>

  <OperationalStates>

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

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

  </OperationalStates>

  <Configuration>

    <Interval>900</Interval>

    <TimeoutSeconds>300</TimeoutSeconds>

    <PolicyName>$Target/Property[Type="AlwaysOnDisc!Microsoft.SQLServer.2012.AlwaysOn.AvailabilityReplica"]/AvailabilityGroupName$-$Target/Property[Type="System!System.Entity"]/DisplayName$-AlwaysOnArConnectionHealthPolicy</PolicyName>

    <InstanceName>$Target/Property[Type="System!System.Entity"]/DisplayName$</InstanceName>

  </Configuration>

</UnitMonitor>