Wednesday, August 25, 2021

TCP Connection timeout

Hi /r/networking

We have a Java Enterprise Application interfaced with SAP and we send data from the application over to SAP through a HTTPS SOAP web service. We seem to get java.net.ConnectException: Connection timed out: no further information exception once every week for all our transactions being sent out to SAP and apparently if we restart the JVM/application and send the transactions again they all go through perfectly fine. I am not a networking guy but wanted to understand what should be the basic steps for debugging this sort of issue.

Also when does a connection timeout happen? 1. The machine/server is not reachable? 2. Our application is able to connect to the SAP servers but SAP servers are slow to process the request which eventually results in a connection timeout?

Again forgive me if this is the wrong platform for asking such questions



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