The slapd-bdb(5) man page seems to me unclear with respect to the dbconfig directive. In fact, what I gather from the text is that if no DB_CONFIG file exists, any dbconfig directive will be used to generate one; otherwise, an existing DB_CONFIG file will not be altered. What is unclear is what happens if both a DB_CONFIG file and any dbconfig directives exist, and they differ? Who takes the precedence? What if any dbconfig directive is not present in the DB_CONFIG file?
I would say since dbconfig directives only work on a restart of slapd, and that if a DB_CONFIG is present, the DB_CONFIG should *always* take precedence. If dbconfig changes could make a difference via back-config, which they can't without a restart, then dbconfig stuff should override any DB_CONFIG.
I hope that makes sense?
Gavin.