MSExchangeTransport 12025
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Although there is as yet no supplementary content specifically written to help resolve this Exchange 2010 event, here are some recommended next steps to learn more about this alert:
Review the Application log and System log on your Exchange 2010 servers for related events. For example, events that occur immediately before and after this event may provide more information about the root cause of this error.
Research your issue by using self-support options. From the navigation pane of the Exchange Server Solutions Center page, click Self Support Options to use the following and other self-help options:
Search the Microsoft Knowledge Base. For example, search the Knowledge Base for the Event Source and event ID you are getting, as well as any other key words in the text of the event message.
Search the Exchange 2010 Forum. You can also post a question there.
Search the Exchange Server Community Web site.
Research your issue by using other resources. From the navigation pane at the Exchange Server Solutions Center page, click Key Resources to learn about other resources.
Resolve your issue by using assisted support options. From the Exchange Server Solutions Center page, click Assisted Support Options to contact a Microsoft support professional. Because your organization may have a specific procedure for directly contacting Microsoft Technical Support, be sure to reviewing your organization's guidelines first. If you do contact support, have the event ID information available. Also, if possible, be prepared to send your application and system logs to the support professional.
Details
Product Name |
Exchange |
Product Version |
14.0 |
Event ID |
12025 |
Event Source |
MSExchangeTransport |
Category |
TransportService |
Symbolic Name |
DisconnectingPerformanceCounters |
Message Text |
Transport service is disconnecting performance counters with process lifetime from their old process. |
Explanation
This Warning event indicates that the Microsoft Exchange Transport service is resetting transport-related performance counters.
Microsoft Exchange Server 2010 uses an ESE database to store messages for routing throughout an Exchange organization. On servers that run the Edge Transport role, the database queues those messages that are received from or are directed to the Internet. On servers that run the Hub Transport role, the database queues those messages that are transferred throughout the Exchange organization. Exchange 2010 includes the following transport queues:
Submission queue
Mailbox delivery queue
Remote delivery queue
Poison message queue
Unreachable queue
The Microsoft Exchange Transport service automatically creates these queues on an as-needed basis for temporary message storage.
When the Microsoft Exchange Transport service stops, Reliability and Performance Monitor may still track transport-related processes. Therefore, when the service starts, it disconnects the performance counters from old transport-related processes to start monitoring the newly-started processes. For more information about the transport architecture in Exchange 2010, see Transport Architecture.
User Action
No user action is required. However, you may want to investigate the issue further to determine whether restarting the Microsoft Exchange Transport service was intentional. To do this, do one or more of the following:
Review the Application log and System log on your Exchange 2010 servers for related events. For example, events that occur immediately before and after this event may provide more information about the root cause of this error.
Review the Operations Console in Operations Manager for detailed information about the cause of this problem. For more information, see the "Introduction" section in this article.
You may want to increase diagnostics logging to log the component startup sequence during the startup process of the Microsoft Exchange Transport service. To increase diagnostics logging for the Transport component, follow these steps:
In Registry Editor, locate the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\Current Control set\Services\MSExchangeTransport\diagnostics
Set the following REG_DWORD values to 7:
Smtpreceive
Smtpsend
DSN
Components
Remote Delivery
Categorizer
Examine the Application log to determine whether any other logged events indicate that message processing has experienced a problem.
For More Information
If you are not already doing so, consider running the Exchange tools, which have been created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues and improve mail flow. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.