Router Error Codes
List of error codes
Here is the list of error codes emitted by our routing layer:
-
499 Client Closed Request
: client closed the connection before the server answered the request. It is usually caused by client side timeout. -
502 Bad Gateway
:- Your application sent an invalid response to our reverse proxy. This error is often sent when your application is abruptly cutting connections.
- This is also the code when all containers are in quarantine. You can distinguish between these two cases based on the context. If you notice multiple consecutive requests returning a 502 error, it probably means one of your application containers is in quarantine.
-
503 Service Unavailable
:- The application requests queue is full, so the newly incoming request has not been dequeued.
- The application has been stopped by its owner.
- The application has no
web
container responding to web requests.
-
504 Gateway Timeout
: application behind the proxy timed out. Your application must accept connections and send the first byte in a limited amount of time.
Last update: 29 Oct 2021
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