on_retriever_error() — langchain Function Reference

Architecture documentation for the on_retriever_error() function in base.py from the langchain codebase.

Function python Observability Tracers calls 3 called by 1

Entity Profile

Observability→ Tracers→ on_retriever_error() — langchain Function Reference

Dependency Diagram

graph TD
  79863a74_2a4c_2d7c_9447_4f06d9be097d["on_retriever_error()"]
  b3ab8001_c14c_4191_ca53_2dbabc99917f["AsyncBaseTracer"]
  79863a74_2a4c_2d7c_9447_4f06d9be097d -->|defined in| b3ab8001_c14c_4191_ca53_2dbabc99917f
  6f1c7411_43d8_9ca5_c023_0defba7f4a65["on_retriever_error()"]
  6f1c7411_43d8_9ca5_c023_0defba7f4a65 -->|calls| 79863a74_2a4c_2d7c_9447_4f06d9be097d
  a962822f_f5be_755c_cef6_a8eeb2b06eb5["_end_trace()"]
  79863a74_2a4c_2d7c_9447_4f06d9be097d -->|calls| a962822f_f5be_755c_cef6_a8eeb2b06eb5
  ed3a7128_10bb_fbbc_fa3a_9edc40fc7f5a["_on_retriever_error()"]
  79863a74_2a4c_2d7c_9447_4f06d9be097d -->|calls| ed3a7128_10bb_fbbc_fa3a_9edc40fc7f5a
  6f1c7411_43d8_9ca5_c023_0defba7f4a65["on_retriever_error()"]
  79863a74_2a4c_2d7c_9447_4f06d9be097d -->|calls| 6f1c7411_43d8_9ca5_c023_0defba7f4a65
  style 79863a74_2a4c_2d7c_9447_4f06d9be097d fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/tracers/base.py lines 831–848

    async def on_retriever_error(
        self,
        error: BaseException,
        *,
        run_id: UUID,
        parent_run_id: UUID | None = None,
        tags: list[str] | None = None,
        **kwargs: Any,
    ) -> None:
        retrieval_run = self._errored_retrieval_run(
            error=error,
            run_id=run_id,
        )
        tasks = [
            self._end_trace(retrieval_run),
            self._on_retriever_error(retrieval_run),
        ]
        await asyncio.gather(*tasks)