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greptimedb/src/servers/AGENTS.md
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dennis zhuang 5d4699db1c docs: refine coding agent maps (#8790)
* docs: refine coding agent maps

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* docs: trim license header guidance

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* docs: update README links and project status

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

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Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
2026-08-10 02:45:37 +00:00

1.9 KiB

servers — Agent & Contributor Guide

Navigation map for src/servers. Repo-wide invariants: .agents/architecture-invariants.md.

servers owns network listeners and protocol translation. Database behavior is provided through handler traits, mostly implemented by frontend.

Module map

Area Path Entry point
Lifecycle src/servers/src/server.rs Shared Server trait
Handler boundary src/servers/src/query_handler.rs, src/servers/src/query_handler/ Protocol-independent handler traits
gRPC / Flight src/servers/src/grpc.rs, src/servers/src/grpc/ gRPC services, auth, cancellation, builders
HTTP src/servers/src/http.rs, src/servers/src/http/ Routes, middleware, protocol endpoints, output formats
SQL protocols src/servers/src/mysql.rs, src/servers/src/mysql/, src/servers/src/postgres.rs, src/servers/src/postgres/ MySQL/PostgreSQL servers and type conversion
Observability protocols src/servers/src/prom_remote_write/, src/servers/src/prometheus.rs, src/servers/src/otlp/, src/servers/src/otel_arrow.rs Prometheus and OpenTelemetry conversion
Resources / TLS src/servers/src/request_memory_limiter.rs, src/servers/src/tls.rs, src/servers/src/addrs.rs Memory admission, TLS, listener addresses

Change coupling

  • Handler trait changes require matching frontend and mock implementations.
  • gRPC wire changes start in greptime-proto; update builders and handlers here after bumping it.
  • Auth or QueryContext changes must cover HTTP, gRPC, MySQL, and PostgreSQL entry points.
  • New protocols or externally visible routes also require frontend service and configuration wiring.

Testing

cargo nextest run -p servers

Keep protocol translation here and permissions/database behavior in frontend.