I frequently see the error: WWW SendRequest(): Send failed! Error = 10053, when I am running a load test.
Any idea when\why this occurs?
Please refer the attachment, there are no transactions that have passed\failed but there is a send failed error dipslayed during run time.
Answer/Solution: A connection abort was caused internal to your host machine. The software caused a connection abort because there is no space on the socket's queue and the socket cannot receive further connections.
WinSock description: The error can occur when the local network system aborts a connection. This would occur if WinSock aborts an established connection after data retransmission fails (receiver never acknowledges data sent on a datastream socket).
TCP/IP scenario: A connection will timeout if the local system doesn't receive an (ACK)nowledgement for data sent. It would also timeout if a (FIN)ish TCP packet is not ACK'd (and even if the FIN is ACK'd, it will eventually timeout if a FIN is not returned).
In short the Server is aborting the connection to the client UNDER LOAD.