Notes

Depending on the SQL statement that is executed, more ports will be required than the calculated target value.
If the number of ports allocated automatically by the operating system is insufficient, respecify the number in the pd_registered_port operand.
When HiRDB releases port numbers, the OS does not necessarily release the numbers immediately (TIME_WAIT status). Therefore, the system will sometimes temporarily use a larger number of port numbers than the target number. For details about how to avoid a shortage of ports caused by the TIME_WAIT status, see 22.4.4 Ways to avoid a shortage of ports.
When the system configuration includes numerous back-end servers within the system, the calculated value might exceed the operating system's upper limit for port numbers or the port number specified in pd_registered_port. For details about the corrective action to take in this situation, see 9.5 Considerations that apply to building a system with many units or servers.