chore(core): remove 200 health access log

Author: gusye1234

src/server/core/acontext_core/telemetry/otel.py

@@ -108,7 +108,7 @@ def shutdown_otel_tracing() -> None:
 
 def instrument_fastapi(app):
     """Instrument FastAPI app with OpenTelemetry"""
-    FastAPIInstrumentor.instrument_app(app)
+    FastAPIInstrumentor.instrument_app(app, excluded_urls="/health")
 
 
 def instrument_sqlalchemy(engine: AsyncEngine) -> None:

src/server/core/api.py

@@ -1,4 +1,5 @@
 import asyncio
+import logging
 from contextlib import asynccontextmanager
 from typing import Optional, List
 from fastapi import FastAPI, Query, Path, Body
@@ -40,6 +41,27 @@
 from acontext_core.schema.orm import Task
 from sqlalchemy import select, func, cast, Integer
 
+
+# Filter to exclude /health endpoint from uvicorn access logs
+# Uses record.args directly instead of parsing formatted message for efficiency
+class _HealthCheckFilter(logging.Filter):
+    def filter(self, record: logging.LogRecord) -> bool:
+        """True if the record should be logged, False otherwise."""
+        if not record.args:
+            return True
+        if len(record.args) != 5:
+            return True
+        endpoint: str = record.args[2]
+        status_code: int = record.args[4]
+        if not endpoint.startswith("/health"):
+            return True
+        if status_code != 200:
+            return True
+        return False
+
+
+logging.getLogger("uvicorn.access").addFilter(_HealthCheckFilter())
+
 # Setup OpenTelemetry tracing before app creation
 # This ensures tracer provider is set up before instrumentation
 telemetry_config = TelemetryConfig.from_env()