I have been getting this message on a test database about every 3 or 4 seconds. It doesn't appear to be affecting connections or other activity of the database, but I noticed it in the db2diag.log file. It has only been showing up for the past 2 days, and before that it wasn't a problem. There have been no configuration changes for more than a month. It's DB2 UDB v.8.1 running on Windows Server 2003.