XADM: Store Stops Responding with High CPU Usage for a Thread |
The information in this article applies to:
-
Microsoft Exchange Server, versions 5.0, 5.5
SYMPTOMS
The Microsoft Exchange Server Information Store service may appear to stop
responding with 90 to 100 percent CPU time. Any clients may also stop
responding (for example, the cursor turns into the hourglass symbol).
When this problem occurs, the information store may fail to stop running
when a service shutdown is attempted.
Viewing the individual threads of Store.exe using performance monitor will
shows a single thread of the information store that appears to be running
near 100 percent CPU usage continuously.
CAUSE
The information store attempted to decode a corrupt message from it's
compressed RTF form into an Exchange message body form. The current decode
logic did not handle compressed RTF corruption of this form and entered
into a tight loop.
STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server
versions 5.0.
A supported fix is now available, but has not been fully regression-tested
and should be applied only to systems experiencing this specific problem.
Unless you are severely impacted by this specific problem, Microsoft
recommends that you wait for the next Service Pack that contains this fix.
Contact Microsoft Technical Support for more information.
This fix has been posted to the following Internet location:
ftp://ftp.microsoft.com/bussys/exchange/exchange-public/fixes/Eng/Exchg5.0/Post-SP2-STORE/
Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.5. This problem has been corrected in the latest U.S. Service
Pack for Microsoft Exchange Server version 5.5. For information on
obtaining the Service Pack, query on the following word in the Microsoft
Knowledge Base (without the spaces):
S E R V P A C K
MORE INFORMATION
To view this in the Windows NT Performance Monitor (Perfmon.exe), follow
these steps:
- Start Perfmon.exe.
- From the Edit menu, click Add To Chart.
- In the Object dropdown list box, select Thread.
- In the Counter list box, select %Processor Time.
- In the Instance list box, select all values that contain "store."
You can now use Perfmon.exe to view the thread running at high CPU usage.
Additional query words:
CPU THREAD SPINNING UNRESPONSIVE SHUTDOWN PROBLEM
Keywords : XADM
Version : 5.0,5.5
Platform :
Issue type : kbbug
