When a connection to a HiRDB server is lost due to a server process going down, system switchover, network failure, or other cause, the automatic reconnect facility automatically re-establishes the connection. By using the automatic reconnect facility, you can continue execution of a UAP without having to be aware that the connection to the HiRDB server was lost. To use the automatic reconnect facility, specify YES in the PDAUTORECONNECT client environment definition.

Application criteria

Whenever you execute the system reconfiguration command or whenever you are updating to the HiRDB update version, all HiRDB clients are placed in wait status until that processing is completed. While in wait status, the elapsed time is monitored against the time specified in PDCWAITTIME. If the time specified in PDCWAITTIME is exceeded, wait status is released, and a PDCWAITTIME timeout error is returned to the UAPs. Depending on the timing of this error, communications processing errors may occur because the UAPs may not be able to detect that the system reconfiguration command is executing or that updating to the HiRDB update version is being performed. If you know in advance that the system reconfiguration command will be executed or that updating to the HiRDB update version will be performed, consider using the automatic reconnect facility. By using this facility, processing continues without an error being returned to the UAPs, even when the system reconfiguration command is executing or updating to the HiRDB update version is being performed.