I have an problem with a CAS server that I'm trying to wrap my head around. This server was recently rebuilt (clean uninstall of Exchange 2013 and fresh install without restoring settings) in an attempt to address a similar issue and it came back.
This server is one of a few CAS servers working fine so I'm focused on something with this machine and less on the environment itself.
I first noticed the issue when the healthchecks (https://servername/service/heatlhcheck.htm) started failing. By failing, the servers did not return a response for the affected services
Some but not all services are affected. EWS/RPC is but OWA is not. All of them return very similar values as seen below:
Here is a wget of an affected server/service:
HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers.
Get-ServerHealth servername | Where-Object {$_.AlertValue -eq "Unhealthy"} | Format-List
Server : servername
CurrentHealthSetState : NotApplicable
Name : MaintenanceFailureMonitor.ECP
TargetResource :
HealthSetName : ECP
HealthGroupName : CustomerTouchPoints
AlertValue : Unhealthy
FirstAlertObservedTime : 3/9/2014 3:20:55 PM
Description :
IsHaImpacting : False
RecurranceInterval : 300
DefinitionCreatedTime : 3/9/2014 3:03:03 PM
HealthSetDescription :
ServerComponentName : None
LastTransitionTime : 3/9/2014 3:20:55 PM
LastExecutionTime : 3/10/2014 9:36:29 PM
LastExecutionResult : Succeeded
ResultId : 236535
WorkItemId : 36
IsStale : False
Error :
Exception :
IsNotified : False
LastFailedProbeId : -1457016208
LastFailedProbeResultId : 6251
ServicePriority : 0
Identity : ECP\MaintenanceFailureMonitor.ECP\
IsValid : True
ObjectState : New
Further troubleshooting, I ran this:
Invoke-MonitoringProbe EWS.Proxy\EWSProxyTestProbe -Server servername | Format-List
RunspaceId : 75f59bdc-73d0-41f4-8e67-a9f3dc2eb316
Server : servername
MonitorIdentity : EWS.Proxy\EWSProxyTestProbe
RequestId : d4aba43d-b521-4afc-af90-001192b603be
ExecutionStartTime : 3/11/2014 1:48:06 AM
ExecutionEndTime : 3/11/2014 1:48:06 AM
Error : Unknown app pool name:
Exception : System.InvalidOperationException: Unknown app pool name:
at Microsoft.Exchange.Monitoring.ActiveMonitoring.ClientAccess.CafeLocalProbe.DoWork(Cancellati
onToken cancellationToken)
at Microsoft.Office.Datacenter.WorkerTaskFramework.WorkItem.Execute(CancellationToken
joinedToken)
at
Microsoft.Office.Datacenter.WorkerTaskFramework.WorkItem.<>c__DisplayClass2.<StartExecuting>b__0()
at System.Threading.Tasks.Task.Execute()
PoisonedCount : 0
ExecutionId : 47266517
SampleValue : 0
ExecutionContext : Probe Absolute Timeout=60000ms, Timeout Value=60000ms, Calculated HttpRequest Timeout=59000ms
FailureContext :
ExtensionXml :
ResultType : Failed
RetryCount : 0
ResultName : d4aba43db5214afcaf90001192b603be-EWSProxyTestProbe
IsNotified : False
ResultId : 49856
ServiceName : InvokeNow
StateAttribute1 :
StateAttribute2 :
StateAttribute3 :
StateAttribute4 :
StateAttribute5 :
StateAttribute6 : 0
StateAttribute7 : 0
StateAttribute8 : 0
StateAttribute9 : 0
StateAttribute10 : 0
StateAttribute11 :
StateAttribute12 :
StateAttribute13 :
StateAttribute14 :
StateAttribute15 :
StateAttribute16 : 0
StateAttribute17 : 0
StateAttribute18 : 0
StateAttribute19 : 0
StateAttribute20 : 0
StateAttribute21 :
StateAttribute22 :
StateAttribute23 :
StateAttribute24 :
StateAttribute25 :
Identity : e8f7991f8b0141bfa85c9e2b8b66b1a2
IsValid : True
ObjectState : New
I've tried recycling the app engine and rebooting. Still no luck. Any ideas?
