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可用性レプリカ接続モニター

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

可用性レプリカ接続

Knowledge Base article:

概要

This monitor rolls up the connection state of all availability replicas and check whether any availability replica is DISCONNECTED.The monitor is unhealthy state when any availability replica is DISCONNECTED.The monitor is healthy state otherwise.

原因

In this availability group, at least one secondary replica is not connected to the primary replica.接続状態は DISCONNECTED です。

解決方法

Find the availability replica which is DISCONNECTED using availability replica monitor state and resolve the issue at the availability replica.

Element properties:

TargetMicrosoft.SQLServer.2012.AlwaysOn.AvailabilityGroupHealth
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.AllAvailabilityReplicasAreConnected" 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.AvailabilityGroupHealth" Priority="Normal">

  <Category>AvailabilityHealth</Category>

  <OperationalStates>

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

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

  </OperationalStates>

  <Configuration>

    <Interval>900</Interval>

    <TimeoutSeconds>300</TimeoutSeconds>

    <PolicyName>$Target/Property[Type="AlwaysOnDisc!Microsoft.SQLServer.2012.AlwaysOn.AvailabilityGroupHealth"]/AvailabilityGroupName$-AlwaysOnAgReplicasConnectionHealthPolicy</PolicyName>

    <InstanceName>$Target/Property[Type="AlwaysOnDisc!Microsoft.SQLServer.2012.AlwaysOn.AvailabilityGroupHealth"]/InstanceName$</InstanceName>

  </Configuration>

</UnitMonitor>