Problem

You see errors like the following and want to know what they mean:

Failed relaying content (con=0x000000000000,endpoint=example.com:80,bio=0x000000000000: disconnected while reading)
ERROR 1/1/19, 00:00:00.000 java error 7713 writing response:
java.io.IOException: con=0x000000000000,endpoint=example.com:80,bio=0x000000000000: disconnected while reading
at com.vordel.dwe.NativeContentSource.relayN(Native Method)
at com.vordel.dwe.NativeContentSource.relay(NativeContentSource.java:39)
at com.vordel.mime.Body.write(Body.java:404)
at com.vordel.dwe.http.ServerTransaction.sendResponseN(Native Method)
at com.vordel.dwe.http.ServerTransaction.sendResponse(ServerTransaction.java:37)
at com.vordel.dwe.http.HTTPPlugin.sendResponse(HTTPPlugin.java:525)
at com.vordel.dwe.http.HTTPPlugin.invokeDispose(HTTPPlugin.java:446)
at com.vordel.dwe.http.HTTPPlugin.invoke(HTTPPlugin.java:144)
(connection closed at )

Resolution

This is what happens when the client connecting to the gateway disconnects before the API Gateway can return the API response. The gateway logs in general cannot say why this happened and the client logs should be inspected for errors or timeouts to see why it disconnected from the gateway without waiting for the response.