Sets timeout values for locks or transactions in the database environment, and the wait time for a process to exit the environment when DB_REGISTER recovery is needed.
The syntax for setting timeout value for database environment's lock, before recovery is started, and transaction is as follows:
                Configures the database environment's lock timeout value.
                The syntax of the entry in the DB_CONFIG file is a single
                line with the string set_lock_timeout,
                one or more whitespace characters, and the lock timeout
                value.         
            
                Sets the timeout value on how long to wait for processes to
                exit the environment before recovery is started.  The
                syntax of the entry in the DB_CONFIG file is a single
                line with the string set_reg_timeout,
                one or more whitespace characters, and the wait timeout
                value.         
            
                Sets the timeout value for transactions in this database
                environment. The syntax of the entry in the DB_CONFIG
                file is a single line with the string
                set_txn_timeout, one or more whitespace
                characters, and the transaction timeout value
            
For more information, see DB_ENV->set_timeout().