Try to connect to the missing nodes

def connectToMissing(self) -> set:
        """
        Try to connect to the missing nodes
        """

        missing = self.reconcileNodeReg()
        if not missing:
            return missing

        logger.info("{}{} found the following missing connections: {}".
                    format(CONNECTION_PREFIX, self, ", ".join(missing)))

        for name in missing:
            try:
                self.connect(name, ha=self.registry[name])
            except (ValueError, KeyError, PublicKeyNotFoundOnDisk, VerKeyNotFoundOnDisk) as ex:
                logger.warning('{}{} cannot connect to {} due to {}'.
                               format(CONNECTION_PREFIX, self, name, ex))
        return missing