QMM 8.6.1/8.7 with Migration Manager Update 20110524 or QMM 8.8 is installed. The directory synchronization agent is logging "Internal DSA error" every few minutes, followed by "Cache Handler will try to find objects in the cache
10/18/11 11:31:37 (GMT-00:00) Common Error 0xe1000005. Internal DSA error
10/18/11 11:31:37 (GMT-00:00) Target JobID:0 -> Cache Handler will try to find objects in the cache
This can be caused by one or more source objects having an invalid value in their QMM service attribute (extensionattribute15 by default). If this value is a hex string (consists of digits and characters A to F), and the string length divides by two, the DSA will try to convert this value to the ObjectGUID for matching. If the attribute is not matched by Migration Manager, conversion fails and the DSA logs "Internal DSA error".
Values like "15" or "ABCD1234" in the matching attribute would cause this issue.
Matching attributes selected for directory synchronization should not be used by any other applications. Prior to starting the migration project, ensure the matching attributes do not contain any values.
In order to resolve the problem, in the source domain, remove any invalid values contained in the matching attributes in the source domain.