Enables/disables specific additional informational and debugging messages in the Berkeley DB message output.
                The syntax of the entry in the DB_CONFIG file is a single
                line with the string set_verbose, one or
                more whitespace characters, the method flag parameter as a
                string, optionally one or more whitespace characters and
                the string on or off.
                If the optional string is omitted, the default is
                on.
			
For example:
set_verbose DB_VERB_RECOVERY
or
set_verbose DB_VERB_RECOVERY on
Enables display of additional information when performing recovery.
The method flag parameters are as follows:
For more information, see DB_ENV->set_verbose().