XCON: MTA Events 2200 and 2201

ID: Q163296

The information in this article applies to:

Microsoft Exchange Server, versions 5.5, 4.0, 5.0

SUMMARY

Microsoft Exchange Server message transfer agent (MTA) events 2200 and 2201 typically indicate that there were thread conflicts while trying to lock the 03000002 object. This object contains reference counts for all other objects. As a result, the 03000002 object is heavily used, which results in frequent, temporary locking conflicts.

2200 and 2201 events on object 03000002 are not unusual and by themselves do not indicate a problem requiring further attention.

MORE INFORMATION

Here is the text of event 2200:

Event ID: 2200
Source: MSExchangeMTA
Category: Field Engineering
Description: An MTA database server error was encountered. [%1 %2 %3 %4
%5 %6] (6)

This event means:

Lock delayed by outstanding reservations
Trying to lock object %1
Number of outstanding reservations %2

Here is the text of event 2201:

Event ID: 2201
Source: MSExchangeMTA
Category: Field Engineering
Description: An MTA database server error was encountered. [%1 %2 %3 %4 %5
%6] (6)

This event means:

Contention on lock call caused delay:
Trying to lock object %1
Thread owning lock is %2

Additional query words: dbserver mtadata corruption fatal

Keywords : kbusage XCON exc4 exc5 exc55
Version : winnt:4.0,5.0,5.5
Platform : winnt
Issue type :