Elba adds some headers to responses to help with troubleshooting. The following headers will be sent:
X-Elba-Id: The ID of the request, all the logs related to it will have atrace=<id>tag.- Logs not related to a request will have a
trace=000000000000tag. - Every reponse will have this header.
- For more informations check the logs module documentation.
- Logs not related to a request will have a
X-Elba-Target: The target that was chosen to respond to the request- If all targets are down and
service.health.none_healthy_is_all_healthyis set tofalsethis header will not be added to the503response generated by Elba. - To understand how targets are chosen, check the load balance module documentation.
- If all targets are down and
X-Elba-Attempts: The amount of attempts that were made to reach the target- If all targets are down and
service.health.none_healthy_is_all_healthyis set tofalsethis header will not be added to the503response generated by Elba. - This includes the first attempt,
1means one attempt, no retries;2means one attempt and one retry. And so on. - To understand how retries work, check the retry module documentation.
- If all targets are down and