def increase_fcp_usage(self, fcp, assigner_id=None):
        """Incrase fcp usage of given fcp

        Returns True if it's a new fcp, otherwise return False
        """
        # TODO: check assigner_id to make sure on the correct fcp record
        connections = self.db.get_connections_from_assigner(assigner_id)
        new = False

        if connections == 0:
            self.db.assign(fcp, assigner_id)
            new = True
        else:
            self.db.increase_usage(fcp)

        return new
Incrase fcp usage of given fcp

        Returns True if it's a new fcp, otherwise return False