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Synchronous message troubleshooting Request/Response?

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Dear experts,

 

I have a synchronous RFC to Web service interface and I'm using SAP PI 7.3 and I've set the LOGGING_SYNC to '1'.

I know that for a synchronous interface, there will be a request and a response message. So for a single interface I would have to entries in SXI_MONITOR, something like:

                  

Request/ResponseSender InterfaceReceiver Interface
RequestRFC_AWebService_A
ResponseWebService_ARFC_A

 

 

1 day I see an "java.net.UnknownHostException: acme.com" error. Where acme.com is the Web service target URL.

What I wonder is that I see the error detail at the Response message but I expect to see the error detail (UnknownHostException) at the Request message because I guess the one that should be looking for host acme.com is the Request message not the Response message.

 

- I mean for every error Request message I see the pair Response message, even when it seems that the error is when the request was sent not when the response was sent. How could there be a Response message if PI cannot even send the Request to the target URL, who creates the response?

 

- How can we tell if the error was when PI was unable to send the request/when PI was unable to send the response (might be because resource/connection was unavailable at the time).

 

- Is it that the error will always be recorded at the Response message even when the error happens when processing the Request message for synchronous interfaces?

 

 

Thank you,

Suwandi C.


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