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"Cancelled" streams causing gRPC status code 13 in Envoy proxy

Abierto
#239 5 comentarios 0 reacciones 0 asignados Ver en GitHub

Nadie ha tomado este issue todavía.

Evaluación

Dificultad
4/5
Tiempo estimado
3-5 días
Aptitud para principiantes
35/100
Tipo de issue
Error
Claridad
Necesita aclaración
Estado de actividad
Estancado
Stack tecnológico
grpc, java
Área
api, backend

Línea de trabajo

Start with the DiscoveryRequestStreamObserver.onCancelled and cancel entry points mentioned in the issue, using java-control-plane v0.1.31 and Envoy 1.18.6 while comparing both sides' logs. Trace when cancellation and stream closure occur and determine whether status code 13 is expected or indicates an error; done means the cause and a reproducible correction or explanation are established.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

I see an info level [n] stream cancelled in my xDS server logs (where the [n] is the stream id) immediately followed by a warning level StreamEndpoints gRPC config stream closed: 13 in my Envoy logs. I'm running v0.1.31 of java-control-plane and 1.18.6 of Envoy. Envoy appears to be getting the data successfully but logs are getting filled on both sides of the connection. It "feels" like something is abruptly ending the gRPC connection.

My reading of the code suggests the [n] stream cancelled message is a red herring. It appears this will be outputted whenever a stream is cancelled (the DiscoveryRequestStreamObserver.onCancelled method) and that the DiscoveryRequestStreamObserver.cancel method is called whenever a stream closed, whether with an error or not. The cancel method appears to only cancel watchers though.

I'm trying to collect more information on this issue. I'll try getting a debugger on the xDS server tomorrow.

Lenguaje dominante
Java
Estrellas
313
Forks
150
Métricas de merge de PR
Sin PR fusionados en 30 d

Preparar el entorno

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

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