Critical State

Microsoft.SQLServerAppliance.APS.Cluster.NodeStateMonitor.Critical (UnitMonitor)

This monitor detects if Node Component is in Critical state.

Knowledge Base article:

Summary

The Windows Failover Clustering service is reporting a critical status for this node. The clustered node is down, but the cluster should still be operational.

Address this failure quickly. Subsequent failures in this cluster will cause a system outage.

Causes

The clustered node is down (status: 1).

For more details, view the component's node_state property in the PDW Admin Console or query the sys.dm_pdw_component_health_status DMV.

Resolutions

To diagnose this issue:

1) On the Host node, use a Windows administrator account to view the Cluster Events in the Failover Cluster Manager.

2) Use the sys.dm_pdw_os_events_logs DMV to check for relevant failures in the Windows Event Log for the node.

To resolve this issue, contact Microsoft support and provide them with the alert name and details. Microsoft Support will help you to understand the failure and help you to bring the node back online or into a healthy state.

Element properties:

Target

Microsoft.SQLServerAppliance.APS.Cluster.Node

Parent Monitor

System.Health.AvailabilityState

Category

AvailabilityHealth

Enabled

True

Alert Generate

True

Alert Severity

Error

Alert Priority

Normal

Alert Auto Resolve

True

Monitor Type

Microsoft.SQLServerAppliance.APS.ComponentTwoStateType

Remotable

True

Accessibility

Public

Alert Message

Node in a cluster has CRITICAL status

Appliance Name: {0}
Node Name: {1}
Component: {2}
Component Details: https://{3}/Fabric/Health/NodeDetails/{4}?compId={5}

RunAs

Default

Source Code:

<UnitMonitor ID="Microsoft.SQLServerAppliance.APS.Cluster.NodeStateMonitor.Critical" Accessibility="Public" Enabled="true" Target="APSLibrary!Microsoft.SQLServerAppliance.APS.Cluster.Node" ParentMonitorID="Health!System.Health.AvailabilityState" TypeID="Microsoft.SQLServerAppliance.APS.ComponentTwoStateType" Remotable="true" Priority="Normal" ConfirmDelivery="false">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Microsoft.SQLServerAppliance.APS.Cluster.NodeStateMonitor.Critical.AlertMessage">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Target/Property[Type="APSLibrary!Microsoft.SQLServerAppliance.APS.Component"]/ApplianceID$</AlertParameter1>

      <AlertParameter2>$Target/Property[Type="APSLibrary!Microsoft.SQLServerAppliance.APS.Component"]/NodeName$</AlertParameter2>

      <AlertParameter3>$Target/Property[Type="System!System.Entity"]/DisplayName$</AlertParameter3>

      <AlertParameter4>$Target/Property[Type="APSLibrary!Microsoft.SQLServerAppliance.APS.Component"]/ApplianceNetworkAddress$</AlertParameter4>

      <AlertParameter5>$Target/Property[Type="APSLibrary!Microsoft.SQLServerAppliance.APS.Component"]/NodeID$</AlertParameter5>

      <AlertParameter6>$Target/Property[Type="APSLibrary!Microsoft.SQLServerAppliance.APS.Component"]/ID$</AlertParameter6>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

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

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

  </OperationalStates>

  <Configuration>

    <IntervalSeconds>900</IntervalSeconds>

    <SyncTime/>

    <TimeoutSeconds>600</TimeoutSeconds>

    <ConnectionString>$Target/Property[Type="APSLibrary!Microsoft.SQLServerAppliance.APS.Component"]/ApplianceTdsAddress$</ConnectionString>

    <NodeName>$Target/Property[Type="APSLibrary!Microsoft.SQLServerAppliance.APS.Component"]/NodeName$</NodeName>

    <GroupName>$Target/Property[Type="APSLibrary!Microsoft.SQLServerAppliance.APS.Component"]/GroupName$</GroupName>

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

    <MonitoredState>Critical</MonitoredState>

  </Configuration>

</UnitMonitor>