Symptoms
After you use the Suspend-Queue cmdlet to stop processing on a queue in Microsoft Exchange Server 2019 or Exchange Server 2016, more than 100 messages stuck in the submission queue but no event is raised in the Microsoft.Exchange.ManagedAvailability\Monitoring channel. In addition, the Microsoft-Exchange-ActiveMonitoring/MonitorResult channel shows the following error message:
ResultName: SubmissionQueueLengthMonitor
Log Name: Microsoft-Exchange-ActiveMonitoring/MonitorResult
Source: Microsoft-Exchange-ActiveMonitoring
Monitor result (Name=SubmissionQueueLengthMonitor)
<Error>Transition timeout should be in increasing order. TransitionId=1</Error>
<Exception>System.ArgumentException: Transition timeout should be in increasing order. TransitionId=1
It’s expected that there's an event in the Microsoft.Exchange.ManagedAvailability\Monitoring channel stating that the submission queue length exceeds threshold.
Workaround
To work around this issue, you can use the following monitoring override:Add-ServerMonitoringOverride -Server <servername> -Identity HubTransport\SubmissionQueueLengthMonitor -ItemType "Monitor" -PropertyName StateTransitionsXml -PropertyValue '<StateTransitions> <Transition ToState="Degraded" TimeoutInSeconds="0" /> <Transition ToState="Unhealthy" TimeoutInSeconds="1" /> </StateTransitions>'
Resolution
To fix this issue, install one of the following updates:
-
The Cumulative Update 3 for Exchange Server 2019 or a later cumulative update for Exchange Server 2019.
-
The Cumulative Update 14 for Exchange Server 2016 or a later cumulative update for Exchange Server 2016.
References
Learn about the terminology that Microsoft uses to describe software updates.
