Add username info on Non OK HTTP Status code

Currently, when Trino Gateway logs non-OK HTTP status codes, such as 401 Unauthorized, it does not include information about the user who initiated the request. This lack of context makes troubleshooting difficult, as it requires manually cross-referencing timestamps with external logs (e.g., Ingress) to identify the source of the problematic requests. This change enhances the logging mechanism to include the username in the log output for these error scenarios, significantly speeding up diagnostics and reducing operational overhead.

Author: ignitz

gateway-ha/src/main/java/io/trino/gateway/proxyserver/ProxyRequestHandler.java

@@ -289,7 +289,7 @@ private ProxyResponse recordBackendForQueryId(Request request, ProxyResponse res
             }
         }
         else {
-            log.error("Non OK HTTP Status code with response [%s] , Status code [%s]", response.body(), response.statusCode());
+            log.error("Non OK HTTP Status code with response [%s] , Status code [%s], user: [%s]", response.body(), response.statusCode(), username.orElse(null));
         }
         queryDetail.setRoutingGroup(routingDestination.routingGroup());
         queryDetail.setExternalUrl(routingDestination.externalUrl());