no DB handles ,How to solve this ?

hi all I've seen many of these messages in the radius.log (I am using freeradius 1.1.1 mysql version :5.1.11) There are no DB handles to use! skipped 0, tried to connect 0 There are no DB handles to use! skipped 0, tried to connect 0 There are no DB handles to use! skipped 0, tried to connect 0 What does it mean ? How to solve this ? -------------- liangzh 2006-12-21