3.3. Troubleshooting services

Procedure

1. To trace HTTP requests and responses, OpenShift Serverless Logic uses the Apache HTTP client by setting the following property:

   # Turning HTTP tracing on
   quarkus.log.category."org.apache.http".level=DEBUG

2. Add the following configuration to your application’s application.properties file to turn on debugging for the Apache HTTP Client:

   quarkus.log.category."org.apache.http".level=DEBUG

3. Restart your application to propagate the log configuration changes.

4. After restarting, check the logs for HTTP request traces.

   Example logs of a traced HTTP request

   2023-09-25 19:00:55,242 DEBUG Executing request POST /v2/models/yolo-model/infer HTTP/1.1
   2023-09-25 19:00:55,243 DEBUG http-outgoing-0 >> POST /v2/models/yolo-model/infer HTTP/1.1
   2023-09-25 19:00:55,243 DEBUG http-outgoing-0 >> Accept: application/json
   2023-09-25 19:00:55,243 DEBUG http-outgoing-0 >> Content-Type: application/json
   2023-09-25 19:00:55,243 DEBUG http-outgoing-0 >> kogitoprocid: inferencepipeline
   2023-09-25 19:00:55,243 DEBUG http-outgoing-0 >> kogitoprocinstanceid: 85114b2d-9f64-496a-bf1d-d3a0760cde8e
   2023-09-25 19:00:55,243 DEBUG http-outgoing-0 >> kogitoprocist: Active
   2023-09-25 19:00:55,243 DEBUG http-outgoing-0 >> kogitoproctype: SW
   2023-09-25 19:00:55,243 DEBUG http-outgoing-0 >> kogitoprocversion: 1.0
   2023-09-25 19:00:55,243 DEBUG http-outgoing-0 >> Content-Length: 23177723
   2023-09-25 19:00:55,244 DEBUG http-outgoing-0 >> Host: yolo-model-opendatahub-model.apps.trustyai.dzzt.p1.openshiftapps.com

5. Check the logs for HTTP response traces following the request logs.

   Example logs of a traced HTTP response

   2023-09-25 19:01:00,738 DEBUG http-outgoing-0 << "HTTP/1.1 500 Internal Server Error[\r][\n]"
   2023-09-25 19:01:00,738 DEBUG http-outgoing-0 << "content-type: application/json[\r][\n]"
   2023-09-25 19:01:00,738 DEBUG http-outgoing-0 << "date: Mon, 25 Sep 2023 19:01:00 GMT[\r][\n]"
   2023-09-25 19:01:00,738 DEBUG http-outgoing-0 << "content-length: 186[\r][\n]"
   2023-09-25 19:01:00,738 DEBUG http-outgoing-0 << "set-cookie: 276e4597d7fcb3b2cba7b5f037eeacf5=5427fafade21f8e7a4ee1fa6c221cf40; path=/; HttpOnly; Secure; SameSite=None[\r][\n]"
   2023-09-25 19:01:00,738 DEBUG http-outgoing-0 << "[\r][\n]"
   2023-09-25 19:01:00,738 DEBUG http-outgoing-0 << "{"code":13, "message":"Failed to load Model due to adapter error: Error calling stat on model file: stat /models/yolo-model__isvc-1295fd6ba9/yolov5s-seg.onnx: no such file or directory"}"