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datalake_agent: service framework (Java)

Abierto
#2,011 0 comentarios 0 reacciones 0 asignados Ver en GitHub

Nadie ha tomado este issue todavía.

Evaluación

Dificultad
5/5
Tiempo estimado
Más de una semana
Aptitud para principiantes
35/100
Tipo de issue
Nueva funcionalidad
Claridad
Bastante claro
Estado de actividad
Activo
Stack tecnológico
grpc, java
Área
api, backend, security, testing

Línea de trabajo

Start in contrib/datalake_agent after verifying the B0 dependency, then run the planned Maven verification and review the in-process gRPC and Unix-socket test coverage. Done means the two-phase startup, transport security, version handshake, interceptors, configuration mapping, credential scrubbing, UNIMPLEMENTED business RPCs, catalog default, RAT headers, and stated CI acceptance checks all pass.

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

Descripción

datalake

Part of #2008. Letters (A, B0–B7, C, D, E) are the PRs listed there; this is B1.

Scope

contrib/datalake_agent: JDK 17, Maven, Guice, Netty gRPC. No Iceberg in it yet.

  • Two-phase startup: bind and serve health first, build the injector and flip to SERVING second.
  • Transport: Unix socket by default with configured permissions; TCP only with TLS and a 0600 bearer-token file (current plus rotation-grace token).
  • Interceptors: request context, exception → status with BusinessErrorCode (no stack trace leaves the process), version handshake refusing an old client and naming both versions.
  • HOCON config for process concerns only; everything about a table travels in the request. One request mapper turns the fdw's options into Iceberg property maps.
  • Credential scrubbing in logs; opt-in metrics.
  • Every business RPC answers UNIMPLEMENTED naming the RPC. Catalog management present, off by default.
  • In-process gRPC tests, a Unix-socket test, negative TLS/token tests; CI runs mvn -B verify; RAT headers. The PostgreSQL build does not need Java.
Out of scope

Iceberg operations and catalogs (B3+), the proxy bgworker, installing the jar through make install.

Depends on

B0.

Acceptance
  • Cold start to SERVING under 1.5 s in CI; health answers on the socket.
  • Old client refused naming both versions; TCP without TLS refuses to start; bad token is UNAUTHENTICATED; business RPCs are UNIMPLEMENTED naming the RPC.
  • A fake key in config and request never appears in DEBUG logs (asserted by test).
  • mvn -B verify and RAT green in CI.
Lenguaje dominante
C
Estrellas
1.4k
Forks
248
Merge medio
4 d 10 h
PR fusionados (30 d)
40

Guía de contribución

Abrir la guía de contribución

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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